阅读说明：本技术 一种新型雷达模拟辐射源相控阵天线喇叭馈源 (Novel radar simulation radiation source phased array antenna horn feed source ) 是由 潘忠堂 于 2019-10-14 设计创作，主要内容包括：本发明公开了一种新型雷达模拟辐射源相控阵天线喇叭馈源,所述喇叭馈源设置在所述新型雷达模拟辐射源相控阵天线的天线箱体侧面呈悬臂状态,喇叭馈源将雷达模拟辐射源通过波导传来的信号电磁波辐射并限制在天线阵面输入辐射器所在的范围内,屏蔽外界信号对输入辐射器输入信号的干扰；所述喇叭馈源设为空心锥状物,锥状物主体由四面侧板树立两两相对地围绕设置而成,锥状物底部设有喇叭安装法兰,通过喇叭安装法兰将喇叭馈源和所述天线箱盖固定；锥状物顶部设有波导安装法兰,波导安装法兰可通过波导连接螺栓与从发射机来的输送波导的法兰连接。本发明的喇叭馈源具有高增益、低成本、可屏蔽外界干扰信号、结构简洁、重量轻、便于安装和维护的优点。(The invention discloses a horn feed source of a novel radar simulated radiation source phased-array antenna, wherein the horn feed source is arranged on the side of an antenna box body of the novel radar simulated radiation source phased-array antenna and is in a cantilever state, the horn feed source radiates a signal electromagnetic wave transmitted by a radar simulated radiation source through a waveguide and limits the radiation within the range of an antenna array surface input radiator, and the interference of an external signal to the input signal of the input radiator is shielded; the horn feed source is a hollow cone, the cone main body is formed by erecting side plates on four sides and oppositely surrounding the side plates in pairs, a horn mounting flange is arranged at the bottom of the cone, and the horn feed source and the antenna box cover are fixed through the horn mounting flange; the top of the cone is provided with a waveguide mounting flange which can be connected with a flange for conveying the waveguide from a transmitter through a waveguide connecting bolt. The horn feed source has the advantages of high gain, low cost, capability of shielding external interference signals, simple structure, light weight and convenience in installation and maintenance.)

1. The utility model provides a novel radar simulation radiation source phased array antenna horn feed which characterized in that: the horn feed source is arranged on the side of an antenna box body of the novel radar simulated radiation source phased-array antenna and is in a cantilever state, the horn feed source radiates electromagnetic waves of signals transmitted by the radar simulated radiation source through the waveguide and limits the electromagnetic waves in the range where the antenna array surface is input into the radiator, and interference of external signals on the input signals of the input radiator is shielded; the horn feed source is a hollow cone, the cone main body is formed by erecting side plates on four sides and oppositely surrounding the side plates in pairs, a horn mounting flange is arranged at the bottom of the cone, and the horn feed source and the antenna box cover are fixed through the horn mounting flange; the top of the cone is provided with a waveguide mounting flange which can be connected with a waveguide conveying flange from a transmitter through a waveguide connecting bolt.

2. The novel radar simulated radiation source phased array antenna horn feed of claim 1, characterized in that: a plurality of rib plates are welded between the horn mounting flange and the side plates.

3. The novel radar simulated radiation source phased array antenna horn feed of claim 1 or 2, characterized in that: and welding positioning reference surfaces are processed between the side plates of the horn feed source, between the side plates and the horn mounting flange and between the side plates and the waveguide mounting flange.

4. The novel radar simulated radiation source phased array antenna horn feed of claim 1 or 2, characterized in that: the size of the horn feed source is 500 mm multiplied by 500 mm to 800 mm multiplied by 800 mm in caliber size, and 9000 mm to 15000 mm in depth size.

5. The novel radar simulated radiation source phased array antenna horn feed of claim 1 or 2, characterized in that: the horn feed source is made of aluminum alloy materials, is formed through a welding process, and the surface of the horn feed source is plated.

6. The novel radar simulated radiation source phased array antenna horn feed of claim 5, characterized in that: the horn feed source is manufactured and molded by adopting a high-precision salt bath welding method and a special tool clamp.

7. The novel radar simulated radiation source phased array antenna horn feed of claim 1 or 2, characterized in that: and sealant is coated and sealed at the joint of each mounting flange of the horn feed source and each mounting surface.

8. The novel radar simulated radiation source phased array antenna horn feed of claim 1 or 2, characterized in that: an antenna box cover is fixed on the side face of the antenna box body of the novel radar simulation radiation source phased-array antenna, and the horn feed source is arranged on the side face of the antenna box cover in a suspension mode.

Technical Field

The invention particularly relates to a novel radar simulated radiation source phased-array antenna horn feed source, and belongs to the field of mechanical and electronic structures.

Background

The feed source radiates the radio frequency power from the feed line to a reflecting surface or a lens array and the like in the form of electromagnetic waves, so that the radio frequency power generates proper field distribution on the caliber; meanwhile, the power leaked from the edge of the reflecting surface or the lens array is minimized to realize the gain as high as possible. Generally, the feed source is installed at the focal position of the reflecting surface or in front of the lens array, and the electromagnetic wave of the feed source radiates to the reflecting surface or the lens array surface through space. Although the feed source in this case is small in size, the electromagnetic wave signal emitted to the reflecting surface or the lens array leaks, and the external interfering electromagnetic wave signal is easily transmitted to the reflecting surface or the lens array.

If a complex feeder system is used for direct feeding for the input of each lens, the installation of the feeder system is very difficult due to the high density of the lens array, which brings great difficulty to the structural design. If the horn feed source is adopted for direct feed, the power loss of the radiation of the horn feed source can be avoided, the interference of space electromagnetic wave signals is reduced, and meanwhile, the complexity of the structural design of an antenna system can be greatly reduced.

The horn feed source is adopted in a certain radar simulated radiation source phased-array antenna for direct feed, and the horn feed source has a simple structure and high gain and can shield external interference signals. However, the horn feed in this case requires a large size, especially caliber and depth, which increases the difficulty of designing and manufacturing the horn feed.

Disclosure of Invention

Aiming at the defects and the shortcomings of the prior art and the characteristics and the requirements of a radar simulation radiation source, the invention aims to: the phased array antenna horn feed source is high in gain, low in cost, capable of shielding external interference signals, simple in structure, light in weight and convenient to install and maintain, and is a novel radar simulated radiation source phased array antenna horn feed source.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a horn feed source of a novel radar simulated radiation source phased-array antenna is arranged on the side of an antenna box body of the novel radar simulated radiation source phased-array antenna and is in a cantilever state, the horn feed source radiates a radar simulated radiation source through electromagnetic waves of signals transmitted by waveguides and limits the radiation within the range of an input radiator of an antenna array surface, and the interference of external signals to the input signals of the input radiator is shielded; the horn feed source is a hollow cone, the cone main body is formed by erecting side plates on four sides and oppositely surrounding the side plates in pairs, a horn mounting flange is arranged at the bottom of the cone, and the horn feed source and the antenna box cover are fixed through the horn mounting flange; the top of the cone is provided with a waveguide mounting flange which can be connected with a waveguide conveying flange from a transmitter through a waveguide connecting bolt.

Furthermore, a plurality of rib plates are welded between the horn mounting flange and the side plates.

And further, welding positioning reference surfaces are processed between the side plates of the horn feed source, between the side plates and the horn mounting flange and between the side plates and the waveguide mounting flange.

Furthermore, the size of the horn feed source is that the caliber size is 500 mm multiplied by 500 mm to 800 mm multiplied by 800 mm, and the depth size is 9000 mm to 15000 mm.

Furthermore, the horn feed source is made of aluminum alloy materials, is formed through a welding process, and the surface of the horn feed source is plated.

Furthermore, the horn feed source is manufactured and molded by a high-precision salt bath welding method and a special tool clamp.

Furthermore, sealing glue is coated at the seams of the mounting flanges and the mounting surfaces of the horn feed sources.

Furthermore, an antenna box cover is fixed to the side face of the antenna box body of the novel radar simulation radiation source phased-array antenna, and the horn feed source is arranged on the side face of the antenna box cover in a suspension mode.

The horn feed source of the radar simulated radiation source phased array antenna designed by the invention is used for the radar simulated radiation source phased array antenna, and provides a feed source which has high gain, low cost, capability of shielding external interference signals, simple structure, light weight and convenience in installation and maintenance for the radar simulated radiation source phased array antenna.

The novel horn feed source of the radar simulated radiation source phased array antenna is a feed source applied to the radar simulated radiation source phased array antenna, radiates signal electromagnetic waves transmitted by a radar simulated radiation source through a waveguide and limits the radiation within the range of an antenna array surface input radiator, and shields the interference of external signals on the input signals of the input radiator.

The horn feed source of the radar simulated radiation source phased-array antenna adopts a horn structure, has the characteristics of less signal loss, high feed source gain, good anti-interference performance, simple structure, low cost, light weight and convenience in installation and use.

Drawings

FIG. 1 is a schematic view of the installation of a horn feed;

FIG. 2 is a three-dimensional view of a horn feed;

fig. 3 is various views of a horn feed: (a) a side view; (b) A-A partial section view; (c) i partial section view; (d) II, partial sectional view;

wherein, 1-horn feed source, 1-1-horn mounting flange, 1-2-side plate, 1-3-waveguide mounting flange and 1-4-rib plate; 2-input radiator, 3-antenna box cover and 4-antenna box body.

Detailed Description

The invention is further described below with reference to the accompanying drawings and examples.

The novel radar simulation radiation source phased array antenna horn feed source of this embodiment radiates and limits the signal electromagnetic wave radiation that the radar simulation radiation source transmitted through the waveguide in the scope that antenna array face input radiator 2 is located, shields the interference of external signal to input radiator 2 input signal. The horn feed 1 is mounted on the antenna box cover 3 by screws. The installation of the novel radar simulated radiation source phased array antenna horn feed on the antenna box body 4 is shown in figure 1.

The horn feed source mainly comprises a horn mounting flange 1-1, a side plate 1-2, a waveguide mounting flange 1-3 and a rib plate 1-4, and the structure of the horn feed source is shown in figure 2.

The horn feed source 1 is set as a hollow cone, the cone main body is formed by erecting side plates 1-2 on four sides in a pairwise opposite surrounding mode, a horn mounting flange 1-1 is arranged at the bottom of the cone, and the horn feed source 1 and an antenna box cover 7 are fixed through the horn mounting flange 1-1; the top of the cone is provided with a waveguide mounting flange 1-3, and the waveguide mounting flange 1-3 can be connected with a waveguide conveying flange from a transmitter through a waveguide connecting bolt. The caliber of the horn feed source 1 is 500 mm × 500 mm to 800 mm × 800 mm, and is preferably 620 mm × 620 mm; the depth dimension is 9000 mm to 15000 mm.

The horn feed source 1 is in a cantilever state after being installed, and in order to increase the strength of the root part of the horn feed source 1, a plurality of rib plates 1-4 are welded between a horn installation flange 1-1 and a side plate 1-2 at the root part of the horn feed source 1.

A welding positioning reference plane is processed between a side plate 1-2 and a side plate 1-2 of a horn feed source, between the side plate 1-2 and a horn mounting flange 1-1 and between the side plate 1-2 and a waveguide mounting flange 1-3 to ensure the size precision of the horn feed source during welding forming, the welding positioning reference plane is shown in figure 3, figure 3a shows the welding relation among the horn mounting flange 1-1, the side plate 1-2 and the waveguide mounting flange 1-3, figure 3b shows the reference plane during welding butt joint between the side plates 1-2, figure 3c shows the reference plane during welding butt joint between the horn mounting flange 1-1 and the side plate 1-2, and figure 3d shows the reference plane during welding butt joint between the waveguide mounting flange 1-3 and the side plate 1-2.

The horn feed source 1 is made of aluminum alloy materials and is formed through a welding process. In order to ensure the welding precision of the horn feed source 1, a high-precision salt bath welding method and a special tool clamp are adopted. The welded horn feed source 1 needs to correct the caliber of the horn and the caliber of the waveguide opening so as to enable the horn and the waveguide to reach the required size and tolerance. And polishing the horn cavity to ensure that the surface of the horn cavity reaches the required roughness. After the horn feed source 1 is processed, the surface of the horn feed source is coated to increase the conductivity of the horn feed source.

After the horn feed source 1 is installed, sealant needs to be coated at the joint of the installation flange and the installation surface for sealing, so that rainwater is prevented from entering the inside of the horn feed source 1 through a joint surface gap.

The above description is only a preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.