阅读说明：本技术 一种大功率波导同轴水冷负载 (High-power waveguide coaxial water-cooling load ) 是由 徐锋明 马丁 焦龙慧 于 2021-07-08 设计创作，主要内容包括：本发明公开了一种大功率波导同轴水冷负载,包括依次连接的波导接口、同轴接口、同轴功分器、若干个能量吸收体和水冷系统,波导同轴水冷负载还包括凸台、第一连接体和第二连接体,凸台包括相连的第一段和第二段,第一段位于波导接口内,第二段延伸至同轴接口内,第一连接体设置在同轴接口内,第一连接体的第一端与凸台的第二段固定连接；第二连接体设置在同轴功分器内并与同轴功分器连接,且面向第一连接体的一端设有开口,第一连接体的第二端经开口插入第二连接体内,第一连接体和第二连接体的内壁面之间具有间隙。本申请实施例所述波导同轴水冷负载的同轴功分器均匀分配输出,能量吸收体吸收的功率大小相等,能量吸收体正常工作,不易损坏。(The invention discloses a high-power waveguide coaxial water-cooling load, which comprises a waveguide interface, a coaxial power divider, a plurality of energy absorbers and a water-cooling system which are connected in sequence, and further comprises a boss, a first connecting body and a second connecting body, wherein the boss comprises a first section and a second section which are connected, the first section is positioned in the waveguide interface, the second section extends into the coaxial interface, the first connecting body is arranged in the coaxial interface, and the first end of the first connecting body is fixedly connected with the second section of the boss; the second connector is arranged in the coaxial power divider and connected with the coaxial power divider, an opening is formed in one end facing the first connector, the second end of the first connector is inserted into the second connector through the opening, and a gap is formed between the inner wall surfaces of the first connector and the second connector. The coaxial power divider with the waveguide coaxial water-cooling load is evenly distributed and output, the power absorbed by the energy absorber is equal, and the energy absorber normally works and is not easy to damage.)

1. The utility model provides a coaxial water-cooling load of high-power waveguide, its characterized in that, the coaxial water-cooling load of waveguide is including waveguide interface, coaxial merit branch ware, a plurality of energy absorber and being used for absorbing connected gradually the water cooling system of energy absorber's energy, the coaxial water-cooling load of waveguide still includes:

a boss comprising a first section and a second section connected, the first section being located within the waveguide interface and the second section extending into the coaxial interface,

the first connecting body is arranged in the coaxial connector, and the first end of the first connecting body is fixedly connected with the second section of the boss;

the second connector is arranged in the coaxial power divider and connected with the coaxial power divider, an opening is formed in one end, facing the first connector, of the second connector, the second end of the first connector is inserted into the second connector through the opening, and a gap is formed between the inner wall surfaces of the first connector and the second connector.

2. The high-power waveguide coaxial water-cooled load according to claim 1, wherein the waveguide interface comprises a waveguide port and a waveguide port body, the coaxial interface comprises a coaxial port and a coaxial port body, the waveguide port body is connected with the coaxial port, and the coaxial port body is connected with the coaxial power divider.

3. The high power waveguide coaxial water-cooling load according to claim 2, wherein the first section is a plurality of steps, and the plurality of steps gradually rise from the waveguide interface to the coaxial interface and are aligned with the waveguide port; the bottom surface of the step is fixed on the inner wall surface of the waveguide port body, and the highest step is positioned at the coaxial port;

the second section is cylindrical and is coaxially arranged with the coaxial port.

4. The high-power waveguide coaxial water-cooling load as claimed in claim 3, wherein the first connecting body is coaxially disposed with the coaxial port, the first connecting body comprises two first metal cylinders with diameters gradually decreasing from the coaxial interface to the coaxial power divider, and the second metal cylinder is inserted into the first metal cylinder with a larger diameter and is fixedly connected with the first metal cylinder;

the second connector is a hollow second metal cylinder and is fixed in the coaxial power divider; the first metal cylinder with the smaller diameter is inserted into the second metal cylinder.

5. The high-power waveguide coaxial water-cooling load as claimed in claim 3, wherein a cover plate is provided at an end of the coaxial power divider facing the energy absorber, a plurality of blocks are provided at equal angular intervals in the coaxial power divider, and projections of the blocks on the cover plate form a circle; the inner of block respectively with the second connector is fixed links to each other, the outer end of block is connected with the third connector respectively, the third connector and connector one-to-one and link to each other, the connector with energy absorber one-to-one and link to each other.

6. The high power waveguide coaxial water-cooled load according to claim 5, wherein the second connecting body is fixedly connected with the cover plate through a bolt.

7. The high-power waveguide coaxial water-cooling load as claimed in claim 2, wherein the cooling system comprises a water inlet and a water outlet, each energy absorber comprises a first inner conductor and a hollow cavity arranged in the first inner conductor, one end of the first inner conductor close to the coaxial power divider is closed, the other end of the first inner conductor is communicated with the water outlet through a first water outlet pipe, one end of the hollow cavity close to the coaxial power divider is communicated with the first inner conductor, and the other end of the hollow cavity is communicated with the water inlet through a first water inlet pipe; the cooling system further includes:

the first cooling plate is arranged on the outer wall surface of the waveguide port body and corresponds to the boss inside and outside the wall surface of the waveguide port body in a separated mode, a first cooling pipe is arranged in the first cooling plate, one end of the first cooling pipe is communicated with the water inlet through a second water inlet pipe, and the other end of the first cooling pipe is communicated with the water outlet through a second water outlet pipe;

a second cooling plate disposed on an outer surface of the cap plate; and one end of the second cooling plate is communicated with the water inlet through a third water inlet pipe, a second cooling pipe is arranged in the second cooling plate, one end of the second cooling pipe is communicated with the water inlet through the third water inlet pipe, and the other end of the second cooling pipe is communicated with the water outlet through a third water outlet pipe.

8. A high power waveguide coaxial water cooled load as claimed in claim 7 wherein said first cooling tube and said second cooling tube are both S-shaped tubes.

9. The high power waveguide coaxial water-cooled load according to claim 7, wherein the water inlet is in communication with a first water distributor through a main water inlet pipe, the first water distributor being in communication with the main water inlet pipe, the second water inlet pipe and the third water inlet pipe, respectively;

the main water inlet pipe is respectively communicated with the plurality of first water inlet pipes one by one through the second water distributor;

a plurality of first water outlet pipes are communicated with the main water outlet pipe through a third water distributor;

the main water outlet pipe, the second water outlet pipe and the third water outlet pipe are communicated with a main water outlet pipe through a first water distributor, and the main water outlet pipe is communicated with a water outlet.

10. The high power waveguide coaxial water-cooled load of claim 9, wherein said waveguide coaxial water-cooled load further comprises a temperature control system, said temperature control system comprising:

the first temperature sensor is arranged on the main water inlet pipe and used for acquiring inlet temperature information of cooling water flowing into the energy absorber;

the second temperature sensor is arranged on the main water outlet pipe and used for acquiring outlet temperature information of cooling water flowing out of the energy absorber in real time;

the flow sensor is arranged on the main water outlet pipe and used for acquiring the flow information of the cooling water flowing out of the energy absorber in real time;

and the input end of the processor is connected with the first temperature sensor, the second temperature sensor and the flow sensor respectively so as to receive the inlet temperature information, the outlet temperature information and the flow information, and the input power of the waveguide coaxial water-cooling load is controlled according to the inlet temperature information, the outlet temperature information and the flow information.

Technical Field

The invention relates to the field of radio frequency wireless communication, in particular to a high-power waveguide coaxial water-cooling load.

Background

At present, the high-power radio frequency or microwave waveguide load mainly comprises a dry load and a water load. Waveguide dry-type load is generally realized by a waveguide feeder, ferrite and the like are used as microwave absorbers, and the borne power is generally dozens of watts to hundreds of watts. Water is used as an absorbing medium of microwave energy for water load of the traditional waveguide, water is introduced into the waveguide to directly absorb the microwave energy, a water container is not easy to be made into a matching shape with a small reflection coefficient, the absorption power of the water load is limited due to the existence of the water container, and the borne power is generally thousands of kilowatts to dozens of kilowatts. Under the condition of ultrahigh power and the condition of special waveguide transmission mode, the power of the traditional waveguide load is not easy to reach 300KW, the matching performance is poor, and the reflection coefficient is large.

The utility model discloses a utility model with publication number CN211125990U discloses a coaxial water load of high-power waveguide, this coaxial water load of waveguide's input port is L type waveguide port, converts coaxial port into through the coaxial conversion equipment of waveguide, and this coaxial port connects one minute six way coaxial merit and divides the ware, and six energy absorber of output termination that this coaxial merit divides the ware, and the moisture that flows cools down the cooling to six energy absorber respectively.

The L-type waveguide conversion coaxial is excited by probe coupling, and through the waveguide coaxial conversion device, the TE10 (electromagnetic wave in a standard rectangular waveguide tube having a magnetic field component and no electric field component in the propagation direction) mode of the propagation mode of the rectangular waveguide is converted into a TEM (transverse electromagnetic wave mode) mode of the coaxial structure, which is an electromagnetic wave in which the electric field and the magnetic field of the electromagnetic wave are both on a plane perpendicular to the propagation direction. Fig. 1 is a cross-sectional view of an electric field distribution of a coaxial water load of a high-power waveguide in the prior art, wherein the color depth represents the electric field strength V/m (volts per meter), and the arrow represents the electric field direction, as shown in fig. 1, the electric field strength of the upper half part of the first column body facing the waveguide port is obviously greater than that of the lower half part, which results in non-uniform distribution output. Because the field intensity of the first column at the coaxial waveguide conversion position is not uniform, the signal is divided into six paths of signals through a six-path coaxial power divider to be output, the insertion loss difference of each output end is large, namely the power absorbed by the six energy absorbers is not equal, and the energy absorbers can work in an overload mode and even be burnt.

Therefore, the above prior art has at least the following technical problems: in the prior art, because the field intensity at the coaxial conversion part of the waveguide is not uniform, the non-uniform distribution output is caused, and the power absorbed by the energy absorber is not equal, so that the energy absorber is overloaded and even burnt.

Disclosure of Invention

The embodiment of the application provides a high-power waveguide coaxial water-cooling load, and solves the technical problems that in the prior art, because the field intensity at the waveguide coaxial conversion part is uneven, uneven distribution output is caused, the power absorbed by an energy absorber is unequal, and the energy absorber is overloaded and even burnt.

For solving the technical problem, the embodiment of the present application provides a coaxial water-cooling load of high-power waveguide, the coaxial water-cooling load of waveguide includes waveguide interface, coaxial merit branch ware, a plurality of energy absorber that connect gradually and is used for absorbing the water cooling system of energy absorber's energy, the coaxial water-cooling load of waveguide still includes:

a boss comprising a first section and a second section connected, the first section being located within the waveguide interface and the second section extending into the coaxial interface,

the first connecting body is arranged in the coaxial connector, and the first end of the first connecting body is fixedly connected with the second section of the boss;

the second connector is arranged in the coaxial power divider and connected with the coaxial power divider, an opening is formed in one end, facing the first connector, of the second connector, the second end of the first connector is inserted into the second connector through the opening, and a gap is formed between the inner wall surfaces of the first connector and the second connector.

Further, the waveguide interface includes a waveguide port and a waveguide port body, the coaxial interface includes a coaxial port and a coaxial port body, the waveguide port body is connected to the coaxial port, and the coaxial port body is connected to the coaxial power divider.

Further, the first section is a plurality of steps, and the plurality of steps gradually rise from the waveguide interface to the coaxial interface and are aligned with the waveguide port; the bottom surface of the step is fixed on the inner wall surface of the waveguide port body, and the highest step is positioned at the coaxial port;

the second section is cylindrical and is coaxially arranged with the coaxial port.

Further, the first connecting body and the coaxial port are coaxially arranged, the first connecting body includes two first metal cylinders, the diameters of which are gradually reduced from the coaxial interface to the coaxial power divider, and the second metal cylinder is inserted into the first metal cylinder with a larger diameter and is fixedly connected with the first metal cylinder;

the second connector is a hollow second metal cylinder and is fixed in the coaxial power divider; the first metal cylinder with the smaller diameter is inserted into the second metal cylinder.

Furthermore, a cover plate is arranged at one end of the coaxial power divider facing the energy absorber, a plurality of blocks are arranged in the coaxial power divider at equal angular intervals, and the projection of the blocks on the cover plate forms a circle; the inner of block respectively with the second connector is fixed links to each other, the outer end of block is connected with the third connector respectively, the third connector and connector one-to-one and link to each other, the connector with energy absorber one-to-one and link to each other. Furthermore, the second connecting body is fixedly connected with the cover plate through a bolt.

Furthermore, the cooling system comprises a water inlet and a water outlet, each energy absorber comprises a first inner conductor and a hollow cavity arranged in the first inner conductor, one end of the first inner conductor close to the coaxial power divider is closed, the other end of the first inner conductor is communicated with the water outlet through a first water outlet pipe, one end of the hollow cavity close to the coaxial power divider is communicated with the first inner conductor, and the other end of the hollow cavity is communicated with the water inlet through a first water inlet pipe; the cooling system further includes:

the first cooling plate is arranged on the outer wall surface of the waveguide port body and corresponds to the boss inside and outside the wall surface of the waveguide port body in a separated mode, a first cooling pipe is arranged in the first cooling plate, one end of the first cooling pipe is communicated with the water inlet through a second water inlet pipe, and the other end of the first cooling pipe is communicated with the water outlet through a second water outlet pipe;

a second cooling plate disposed on an outer surface of the cap plate; and one end of the second cooling plate is communicated with the water inlet through a third water inlet pipe, a second cooling pipe is arranged in the second cooling plate, one end of the second cooling pipe is communicated with the water inlet through the third water inlet pipe, and the other end of the second cooling pipe is communicated with the water outlet through a third water outlet pipe.

Further, the first cooling pipe and the second cooling pipe are both S-shaped pipes.

Further, the water inlet is communicated with a first water distributor through a main water inlet pipe in sequence, and the first water distributor is communicated with the main water inlet pipe, the second water inlet pipe and the third water inlet pipe respectively;

the main water inlet pipe is respectively communicated with the plurality of first water inlet pipes one by one through the second water distributor;

a plurality of first water outlet pipes are communicated with the main water outlet pipe through a third water distributor;

the main water outlet pipe, the second water outlet pipe and the third water outlet pipe are communicated with a main water outlet pipe through a first water distributor, and the main water outlet pipe is communicated with a water outlet.

Further, the coaxial water-cooling load of waveguide still includes temperature control system, temperature control system includes:

the first temperature sensor is arranged on the main water inlet pipe and used for acquiring inlet temperature information of cooling water flowing into the energy absorber;

the second temperature sensor is arranged on the main water outlet pipe and used for acquiring outlet temperature information of cooling water flowing out of the energy absorber in real time;

the flow sensor is arranged on the main water outlet pipe and used for acquiring the flow information of the cooling water flowing out of the energy absorber in real time;

and the input end of the processor is connected with the first temperature sensor, the second temperature sensor and the flow sensor respectively so as to receive the inlet temperature information, the outlet temperature information and the flow information, and the input power of the waveguide coaxial water-cooling load is controlled according to the inlet temperature information, the outlet temperature information and the flow information.

One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

(1) the waveguide coaxial water-cooling load provided by the embodiment of the application has the average power which can reach 300 KW;

(2) the coaxial power divider with the waveguide coaxial water-cooling load is uniformly distributed and output, the power absorbed by the energy absorber is equal, and the energy absorber works normally and is not easy to damage;

(3) the waveguide coaxial water-cooling load can particularly meet the requirements of a working frequency central point of 650MHz and a frequency band bandwidth of +/-20 MHz; the reflection coefficient is low, and the return loss of the input port is better than 30 dB;

(4) the temperature control system of the waveguide coaxial water-cooling load can control the temperature of the waveguide water-cooling load within a reasonable range and can work normally and continuously;

(5) the coaxial water-cooling load of waveguide simple structure, the stable performance is reliable, convenient to use, and adopt the modularized design, easy maintenance, reduction in production cost.

Drawings

FIG. 1 is a cross-sectional view of the electric field distribution of a high power waveguide coaxial water load of the prior art;

FIG. 2 is a front view of a high power waveguide coaxial water cooled load according to an embodiment of the present application;

FIG. 3 is a cross-sectional view of a high power waveguide coaxial water cooled load according to an embodiment of the present application;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3 of a high power waveguide coaxial water cooled load according to an embodiment of the present application;

FIG. 5 is a partial cross-sectional view of a high power waveguide coaxial water cooled load according to an embodiment of the present application;

fig. 6 is a cross-sectional view of an electric field distribution of a high power waveguide coaxial water-cooling load according to an embodiment of the present application;

FIG. 7 is a thermal simulation of a high power waveguide coaxial water load of the prior art;

fig. 8 is a thermal simulation diagram of a high power waveguide coaxial water-cooling load provided by an embodiment of the present application when the first cooling plate and the second cooling plate are not provided;

fig. 9 is a thermal simulation diagram of a high power waveguide coaxial water-cooling load provided by an embodiment of the present application when the first cooling plate and the second cooling plate are arranged and turned on;

fig. 10 is a three-dimensional electromagnetic simulation return loss curve diagram of a high-power waveguide coaxial water-cooling load according to an embodiment of the present application;

FIG. 11 is a graph of three-dimensional electromagnetic simulated insertion loss for a high power waveguide coaxial water load in the prior art;

fig. 12 is a three-dimensional electromagnetic simulation insertion loss curve diagram of a high-power waveguide coaxial water-cooling load according to an embodiment of the present application.

Detailed Description

The embodiment of the application provides a high-power waveguide coaxial water-cooling load, and solves the technical problems that in the prior art, because the field intensity at the waveguide coaxial conversion part is uneven, uneven distribution output is caused, the power absorbed by an energy absorber is unequal, and the energy absorber is overloaded and even burnt.

In order to solve the technical problems, the general idea of the embodiment of the application is as follows:

this application embodiment through first connector with leave between the internal face of second connector and establish the clearance, both non-contact coupling for the signal divides the ware into a plurality of ways of signal even output through coaxial merit, distribution loss evenly equally divides, and the power size that energy absorber absorbs equals, has effectively solved among the prior art because the field intensity size of waveguide coaxial transition department is inhomogeneous, causes inhomogeneous distribution output, and the power size that energy absorber absorbs is unequal, makes the technical problem that energy absorber overload work even burns out.

In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.

Fig. 2 to 5 are a front view, a cross-sectional view, an a-a direction cross-sectional view and a partial cross-sectional view of a high-power waveguide coaxial water-cooling load provided in an embodiment of the present application, and as shown in fig. 2 to 5, the waveguide coaxial water-cooling load includes a waveguide interface, a coaxial power divider, a plurality of energy absorbers 500 and a water-cooling system for absorbing energy of the energy absorbers 500, which are connected in sequence, specifically, the waveguide interface is a rectangular waveguide and is connected with the coaxial power divider through a shaft port (i.e., the coaxial interface), and an output end of the coaxial power divider is connected with the energy absorbers 500.

In this embodiment, the coaxial power divider is a one-six-way coaxial power divider, and an input signal with an average power of 300KW is equally divided into six signals with an average power of 50KW by equal-amplitude and same-phase input signals, and all the signals are absorbed by the energy absorber 500 and converted into heat.

As shown in fig. 2 to 5, the waveguide coaxial water-cooling load further includes a boss 102, a first connecting body 203, and a second connecting body 204, wherein:

the boss 102 includes a first section and a second section connected to each other, the first section is fixed on an inner wall surface of the waveguide interface, and the second section extends into the coaxial interface;

the first connecting body 203 is arranged in the coaxial interface, and a first end of the first connecting body 203 is fixedly connected with a second section of the boss 102;

the second connector 204 is disposed in the coaxial power divider and is in contact connection with the coaxial power divider, and an opening is disposed at one end (i.e., the left end) facing the first connector 203, the second end (i.e., the right end) of the first connector 203 is inserted into the second connector 204 through the opening, and the inner wall surfaces of the first connector 203 and the second connector 204 are not in contact with each other and have a gap.

Fig. 6 is an electric field distribution cross-sectional view of a high-power waveguide coaxial water-cooling load according to an embodiment of the present application, wherein the color depth in the drawing indicates an electric field strength V/m (volts per meter), arrows indicate an electric field direction, as can be seen from fig. 6, although the electric field strength of the upper half portion of the first connecting body 203 is greater than that of the lower half portion, but the electric field strength is coupled in a non-contact manner, that is, a gap is formed between the inner wall surfaces of the first connecting body 203 and the second connecting body 204, the electric field strength of the upper half portion of the second connecting body 204 is almost the same as that of the lower half portion, so that the signal is divided into a plurality of signals by the coaxial power divider to be uniformly output, the distribution loss is uniformly divided, the power absorbed by the energy absorber is equal in magnitude, in this embodiment, the input signal with an average power of 300KW is equally divided into six signals with an average power of 50KW, the energy absorber absorbs and converts the heat energy, and the technical problems that in the prior art, due to the fact that the field intensity at the coaxial conversion position of the waveguide is uneven, uneven distribution output is caused, the absorbed power of the energy absorber is unequal, and the energy absorber is overloaded and even burnt are solved.

Further, the waveguide interface includes a waveguide port 100 and a waveguide port body 101, the coaxial interface includes a coaxial port 200 and a coaxial port body 201, the waveguide port body 101 is coaxially connected to the coaxial port 200, and the coaxial port body 201 is coaxially connected to the coaxial power divider.

Specifically, the right end of the waveguide port body 101 is welded with a coaxial port 200, the left end of the coaxial port body 201 is fixedly connected with the coaxial port 200 through a screw, and the right end of the coaxial port body 202 is fixedly connected with the cover plate 202 through a screw and a sealing ring.

Further, the first section is a plurality of steps, and the plurality of steps gradually rise from the waveguide interface to the coaxial interface (from left to right) and are aligned with the waveguide port 100; the bottom surface of the step is fixed on the inner wall surface of the waveguide port body 101, and the highest step is located at the coaxial port 200; the second section is cylindrical and is disposed coaxially with the coaxial port 200. Specifically, in this embodiment, the first section is three steps, and the widths of the steps at each stage are the same.

Further, the first connecting body 203 is coaxially disposed with the coaxial port 200, the first connecting body 203 includes two first metal cylinders (metal cylinders) with diameters gradually decreasing from the coaxial interface to the coaxial power divider, and the second metal cylinder is inserted into the first metal cylinder with a larger diameter and is fixedly connected through a connecting assembly; the second connecting body 204 is a hollow second metal cylinder, and the second connecting body 204 is fixed in the coaxial power divider; the first metal cylinder with the smaller diameter is inserted into the second metal cylinder.

Further, the coaxial power divider includes a metal cover plate 202 and a plurality of connectors 207, wherein:

a cover plate 202 is arranged at one end of the coaxial power divider facing the energy absorber 500, a plurality of metal blocks 206 are arranged in the coaxial power divider at equal angular intervals, and the projections of the plurality of metal blocks 206 on the cover plate 202 form a circle; the inner ends of the block bodies 206 are fixedly connected with the second connecting bodies 204 respectively, the outer ends of the block bodies 206 are connected with third connecting bodies 205 respectively, the third connecting bodies 205 are in one-to-one correspondence with and connected with the connecting heads 207, and the connecting heads 207 are in one-to-one correspondence with and connected with the energy absorber 500. Specifically, the cover plate 202 is a circular metal plate, and the projections of the six blocks 206 on the cover plate 202 enclose a circle along the circumferential direction of the cover plate 202; the third connecting body 205 is a metal cylinder, six through holes are formed in the cover plate 202, and the third connecting body 205 penetrates through the through holes and is connected with the corresponding connecting head 207.

Further, the second connecting body 204 is fixedly connected to the cover plate 202 by a bolt, so as to perform a function of grounding short circuit.

Further, the cooling system comprises a first water inlet pipe 903, a water inlet 600, a first water outlet pipe 1003 and a water outlet 700; each energy absorber 500 includes a first inner conductor and a hollow cavity (in this embodiment, a second hollow cylinder made of teflon material) disposed in the first inner conductor (in this embodiment, the first hollow cylinder), one end of the first inner conductor close to the coaxial power divider is closed, the other end of the first inner conductor is communicated with the water outlet 700 through a first water outlet pipe 1003, one end of the hollow cavity close to the coaxial power divider is communicated with the first inner conductor, and the other end of the hollow cavity is communicated with the water inlet 600 through a first water inlet pipe 903; the cooling water flows from the left end to the right end along the inner wall of the first inner conductor of the energy absorber 500 and flows out, and the first inner conductor of the energy absorber 500 is cooled by flowing water.

The outer surface of the first inner conductor of the energy absorber 500 is attached with a resistance absorber for absorbing energy, the first inner conductor is sheathed with a first outer conductor for preventing energy from being dissipated, the connector 207 comprises a second inner conductor and a second outer conductor sheathed outside the second inner conductor, wherein: the left end of the first outer conductor is connected with the second outer conductor, the left end of the first inner conductor is connected with the second inner conductor, and the right end of the first outer conductor is hermetically connected with the right end of the first inner conductor to play a sealing role, so that energy is not dissipated outwards and is absorbed by the resistance absorber. In this embodiment, the average power of the energy absorber 500 is 50 KW.

The cooling system further comprises a first cooling plate 300 and a second cooling plate 400, wherein:

the first cooling plate 300 is arranged on the outer wall surface of the waveguide port body 101 and corresponds to the boss 102 inside and outside the wall surface of the waveguide port body 101, a first cooling pipe is arranged in the first cooling plate 300, one end of the first cooling pipe is communicated with the water inlet 600 through a second water inlet pipe 901, and the other end of the first cooling pipe is communicated with the water outlet 700 through a second water outlet pipe 1001;

the second cooling plate 400 is disposed on the outer surface of the cover plate 202, a second cooling pipe is disposed in the second cooling plate 400, one end of the second cooling pipe is communicated with the water inlet 600 through a third water inlet pipe 902, and the other end of the second cooling pipe is communicated with the water outlet 700 through a third water outlet pipe 1002.

The first cooling plate 300 and the second cooling plate 400 enhance heat dissipation at the waveguide interface and the coaxial power splitter, respectively.

Furthermore, first cooling tube with the second cooling tube all is the S-shaped pipe, has increased heat transfer area, just first cooling tube the second cooling tube all is the tubular metal resonator, first cooling plate 300 and second cooling plate 400 all are the sheet metal, and the metal has better heat transfer effect, has strengthened the radiating effect to the effect of cooling has been improved.

Further, the water inlet 600 is communicated with a first water distributor 800 sequentially through a main water inlet pipe 900, and the first water distributor 800 is communicated with the main water inlet pipe, the second water inlet pipe 901 and the third water inlet pipe 902 respectively;

the main water inlet pipe is communicated with six first water inlet pipes 903 one by one through the second water distributor 801;

a plurality of the first water outlet pipes 1003 are communicated with the main water outlet pipe 1000 through a second water distributor 801;

the main water outlet pipe 1000, the second water outlet pipe 1001 and the third water outlet pipe 1002 are communicated with a main water outlet pipe through a first water distributor 800, and the main water outlet pipe is communicated with the water outlet 700.

Further, the coaxial water-cooling load of waveguide still includes temperature control system, temperature control system includes:

a first temperature sensor disposed on the main water inlet pipe to collect inlet temperature information of the cooling water flowing into the energy absorber 500;

the second temperature sensor 1100 is arranged on the first water outlet pipe 1003 to collect outlet temperature information of the cooling water flowing out of the energy absorber 500 in real time;

the flow sensor 1200 is arranged on the main water outlet pipe 1000 to collect flow information of the cooling water flowing out of the energy absorber 500 in real time;

and the input end of the processor is respectively connected with the first temperature sensor, the second temperature sensor 1100 and the flow sensor 1200 so as to receive the inlet temperature information, the outlet temperature information and the flow information, and the input power of the waveguide coaxial water-cooling load is controlled according to the inlet temperature information, the outlet temperature information and the flow information.

Specifically, an outlet temperature threshold (for example, 100 degrees) is prestored in the processor, the processor compares the outlet temperature of the cooling water with the outlet temperature threshold, and when the outlet temperature of the cooling water is greater than the outlet temperature threshold, the processor reduces the input power of the waveguide coaxial water-cooling load, so as to protect the water-cooling load.

Fig. 7 is a thermal simulation diagram of a high-power waveguide coaxial water load in the prior art, as shown in fig. 7, an ambient temperature is 293K (20 ℃), an average power is continuously input by 300KW, a maximum temperature of the first cylinder reaches 449K (176 ℃), although water is circulated and cooled at the fifth flange, since the first cylinder is not in contact with the fifth flange, a cooling effect of the first cylinder is very limited, and since the first cylinder cannot be cooled in time, a temperature of the whole high-power waveguide coaxial water load rises, a standing-wave ratio of an input port deteriorates or even exceeds an index range, and normal operation of the whole system is affected.

Fig. 8 is a thermal simulation diagram of a high power waveguide coaxial water-cooling load provided in an embodiment of the present application, when the first cooling plate 300 and the second cooling plate 400 are not provided, the ambient temperature is 293K (20 ℃), the average power is continuously input 300KW, and the maximum temperature of the first connecting body 203 and the second connecting body 204 reaches 703K (430 ℃).

Fig. 9 is a thermal simulation diagram of a high power waveguide coaxial water-cooling load provided in an embodiment of the present application, wherein the first cooling plate 300 and the second cooling plate 400 are arranged and opened, the ambient temperature is 293K (20 ℃), the average power is continuously input 300KW, and the maximum temperature of the first connecting body 203 and the second connecting body 204 is 350K (77 ℃).

7-9, this application embodiment increases the heat dissipation of the coaxial water-cooling load of waveguide through setting up first cooling plate 300 with second cooling plate 400 for the coaxial water-cooling load of waveguide has better cooling effect.

FIG. 10 is a three-dimensional electromagnetic simulation return loss curve diagram of a high-power waveguide coaxial water-cooling load provided in an embodiment of the present application, wherein the return loss is better than 40 dB.

Fig. 11 is a graph of three-dimensional electromagnetic simulated insertion loss of a high power waveguide coaxial water load of the prior art, and it can be seen from fig. 11 that the maximum difference between the insertion losses is 0.29 dB. Fig. 12 is a three-dimensional electromagnetic simulation insertion loss curve diagram of a high-power waveguide coaxial water-cooling load according to an embodiment of the present application, where a maximum difference between insertion losses is 0.07 dB.

In fig. 10 to 11, the horizontal axes each represent Frequency in GHz; the vertical axis represents return loss, insertion loss, and insertion loss, respectively, in dB. The numbers 1, 2, 3 appearing in fig. 10 are the identifications of 3 points in the figure, and the numbers 1, 2, 3, 4, 5, 6 appearing in fig. 11-12 are the identifications of 6 points in the respective figures.

In summary, the waveguide coaxial water-cooling load of the embodiment of the present application has at least the following beneficial effects:

(1) the waveguide coaxial water-cooling load provided by the embodiment of the application has the average power which can reach 300 KW;

(2) the coaxial power divider with the waveguide coaxial water-cooling load is uniformly distributed and output, the power absorbed by the energy absorber is equal, and the energy absorber works normally and is not easy to damage;

(3) the waveguide coaxial water-cooling load can particularly meet the requirements of a working frequency central point of 650MHz and a frequency band bandwidth of +/-20 MHz; the reflection coefficient is low, and the return loss of the input port is better than 30 dB;

(4) the temperature control system of the waveguide coaxial water-cooling load can control the temperature of the waveguide water-cooling load within a reasonable range and can work normally and continuously;

(5) the coaxial water-cooling load of waveguide simple structure, the stable performance is reliable, convenient to use, and adopt the modularized design, easy maintenance, reduction in production cost.

It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element may be termed a second element, and, similarly, a second element may be termed a first element, without departing from the scope of example embodiments.

The terms of orientation, outer, intermediate, inner, etc., as referred to or as may be referred to in the specification are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed according to the position and the use state of the structure. Therefore, these and other directional terms should not be construed as limiting terms.

While the foregoing is directed to the preferred embodiment of the present application, and not to the limiting thereof in any way and any way, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. Those skilled in the art can make various changes, modifications and equivalent arrangements to those skilled in the art without departing from the spirit and scope of the present application; moreover, any equivalent alterations, modifications and variations of the above-described embodiments according to the spirit and techniques of this application are intended to be within the scope of the claims of this application.