阅读说明：本技术 一种小型化威尔金森功率分配器 (A kind of miniaturization Wilkinson power divider ) 是由 刘登宝 王凯 靳学明 于 2019-08-19 设计创作，主要内容包括：本发明公开了一种小型化威尔金森功率分配器,属于功分器技术领域,包括微带线结构与多个隔离电阻,所述微带线结构具有一个用于输入微波信号的输入端口与两个用于输出微波分支信号的输出端口,所述输入端口与所述第一输出端口之间设置有第一微带传输部,所述输入端口与所述第二输出端口之间设置有第二微带传输部。本发明对所有存在平行部分的微带线均进行切口处理,在微带线的平行部分处切出一个缺口,降低了微带线的宽度,等效于在此处添加了一个串联电感,从而有效降低了微带线并行产生的耦合电容带来的影响,可以在实现功分器小型化的同时保证功分器的性能,值得被推广使用。(The invention discloses a kind of miniaturization Wilkinson power dividers, belong to power splitter technical field, including microstrip line construction and multiple isolation resistances, the microstrip line construction has the output port for being used to export microwave branch signal for inputting the input port of microwave signal with two, it is provided with the first micro-strip transport part between the input port and first output port, the second micro-strip transport part is provided between the input port and the second output terminal mouth.There are the microstrip lines of parallel section to carry out incision treatment to all by the present invention, a notch is cut out at the parallel section of microstrip line, reduce the width of microstrip line, it is equivalent to and is added to a series inductance here, it is influenced to effectively reduce the coupled capacitor bring that microstrip line generates parallel, it can realize the performance for guaranteeing power splitter while power splitter miniaturization, be worth being used more widely.)

1. a kind of miniaturization Wilkinson power divider, it is characterised in that: including microstrip line construction and multiple isolation resistances, institute It states microstrip line construction and is used to export the defeated of microwave branch signal with two for inputting the input port of microwave signal with one Exit port, is provided with the first micro-strip transport part between the input port and first output port, the input port with The second micro-strip transport part is provided between the second output terminal mouth, multiple isolation resistances are arranged in parallel described in two Between micro-strip transport part, two micro-strip transport parts include multiple microstrip lines of identical quantity, on multiple microstrip lines It is provided with for reducing the notch of the micro belt line width, the notch setting is micro- described in the same micro-strip transport part Symmetric position with the adjacent parallel section of line is equivalent to one series inductance of setting at the parallel section.

2. a kind of miniaturization Wilkinson power divider according to claim 1, it is characterised in that: first micro-strip Transport part includes the first microstrip line, the second microstrip line and third microstrip line, first microstrip line, second microstrip line and institute Third microstrip line is stated to be sequentially connected in series from the input port to first output port.

3. a kind of miniaturization Wilkinson power divider according to claim 2, it is characterised in that: second micro-strip Transport part includes the 4th microstrip line, the 5th microstrip line and the 6th microstrip line, the 4th microstrip line, the 5th microstrip line and institute The 6th microstrip line is stated to be sequentially connected in series from the input port to the second output terminal mouth.

4. a kind of miniaturization Wilkinson power divider according to claim 3, it is characterised in that: first micro-strip Line is connect with the input port with the first port of the 4th microstrip line, the second port of first microstrip line and institute State the first port connection of the second microstrip line, the first port of the second port of second microstrip line and the third microstrip line Connection, the second port of the third microstrip line connect with first output port, first microstrip line, described second micro- Band line and the third microstrip line, which are sequentially connected, constitutes three section impedance transformer of the first Chebyshev.

5. a kind of miniaturization Wilkinson power divider according to claim 4, it is characterised in that: the 4th micro-strip The second port of line is connect with the first port of the 5th microstrip line, the second port and the described 6th of the 5th microstrip line The first port of microstrip line connects, and the second port of the 6th microstrip line is connect with the second output terminal mouth, and the described 4th Microstrip line, the 5th microstrip line and the 6th microstrip line, which are sequentially connected, constitutes three section impedance transformer of the second Chebyshev.

6. a kind of miniaturization Wilkinson power divider according to claim 5, it is characterised in that: the isolation resistance Quantity it is identical as the quantity of the microstrip line included in any one micro-strip transport part.

7. a kind of miniaturization Wilkinson power divider according to claim 6, it is characterised in that: multiple isolation resistances Including the first isolation resistance, the second isolation resistance and third isolation resistance, the first isolation resistance setting is micro- described first Between band line second port and the 4th microstrip line second port, second isolation resistance is arranged in second microstrip line second Between port and the 5th microstrip line second port, third isolation resistance setting is in the third microstrip line second port and the Between six microstrip line second ports.

8. a kind of miniaturization Wilkinson power divider according to claim 7, it is characterised in that: the input port It is the first microwave branch to first output port, the input port to the second output terminal mouth is the second microwave branch Road.

9. a kind of miniaturization Wilkinson power divider according to claim 8, it is characterised in that: first microwave Branch and the second microwave branch are symmetrical arranged, and the length and width of first microstrip line and the 4th microstrip line is homogeneous Together, the length and width of second microstrip line and the 5th microstrip line is all the same, the third microstrip line and the described 6th The length and width of microstrip line is all the same, and first output port is equal with the characteristic impedance of the second output terminal mouth.

10. a kind of miniaturization Wilkinson power divider according to claim 9, it is characterised in that: the notch is set It sets in first microstrip line, second microstrip line, the third microstrip line, the 4th microstrip line, the 5th micro-strip The symmetric position of adjacent parallel section, the adjacent parallel section are present in single microstrip line in line and the 6th microstrip line Between portion or two adjacent microstrip lines.

Technical field

The present invention relates to power splitter technical fields, and in particular to a kind of miniaturization Wilkinson power divider.

Background technique

Power divider is the device for referring to for input signal being divided into two-way or more output signal, and be otherwise known as function Divide device, each output signal may be the same or different, it is indispensable important mould in radio frequency and microwave system Block is widely used in the systems such as radar, microwave communication and electronic countermeasure.Wilkinson power divider electricity based on microstrip line construction Road, due to the advantages such as low with light weight and cost, structure is simple and easy to implement, isolation is higher between different output port, thus It is widely used in each system.

Traditional Wilkinson power divider circuit, has been sequentially connected multiple micro-strips between input port and each output port Line, these microstrip lines constitute Chebyshev's more piece impedance transformer, so that the impedance for realizing input terminal to each output end converts, Wherein the width of each microstrip line is determined by output port characteristic impedance and input port characteristic impedance value, the length of microstrip line by The centre frequency of working frequency range determines.In the system in broadband, the Chebyshev's impedance transformer for needing more piece microstrip line to constitute, Just being able to achieve the input/output end port in entire frequency range has preferable stationary wave characteristic.But it with the increase of joint number, will increase The size of entire power splitter, particularly with the lower application system of frequency, the length of each microstrip line is larger, power splitter size compared with Big problem is more prominent.

The best approach for reducing traditional Wilkinson power divider size is using labyrinth technology, i.e., the micro-strip of traditional line Line is changed to curved equal length microstrip line, this method can be effectively reduced the length of power splitter, but microstrip line after bending Between there is part compared with multiple parallel, unavoidably there is coupling from each other, influence the property of power splitter in each parallel section Energy.

Summary of the invention

Technical problem to be solved by the present invention lies in: how traditional function point is reduced while realizing power splitter miniaturization The influence being mutually coupled between curved microstrip line in device provides a kind of miniaturization Wilkinson power divider.

The present invention is solution above-mentioned technical problem by the following technical programs, the present invention include microstrip line construction with it is multiple There is one to be divided with two for exporting microwave for inputting the input port of microwave signal for isolation resistance, the microstrip line construction The output port of supported signal is provided with the first micro-strip transport part between the input port and first output port, described The second micro-strip transport part is provided between input port and the second output terminal mouth, multiple isolation resistances are arranged parallel Between two micro-strip transport parts, two micro-strip transport parts include multiple microstrip lines of identical quantity, Duo Gesuo The notch being provided on microstrip line for reducing the micro belt line width is stated, the notch setting is transmitted in the same micro-strip The symmetric position of the adjacent parallel section of microstrip line described in portion is equivalent to one series inductance of setting at the parallel section, There are the microstrip lines of parallel section to carry out incision treatment to all, and a notch is cut out at the parallel section of microstrip line, drops The width of low microstrip line is equivalent to and is added to a series inductance here, to effectively reduce what microstrip line generated parallel Coupled capacitor bring influences, and can realize the performance that ensure that power splitter while power splitter miniaturization.

Preferably, first micro-strip transport part includes the first microstrip line, the second microstrip line and third microstrip line, and described the One microstrip line, second microstrip line are successively gone here and there with the third microstrip line from the input port to first output port Connection.

Preferably, second micro-strip transport part includes the 4th microstrip line, the 5th microstrip line and the 6th microstrip line, and described the Four microstrip lines, the 5th microstrip line are successively gone here and there with the 6th microstrip line from the input port to the second output terminal mouth Connection.

Preferably, first microstrip line is connect with the input port with the first port of the 4th microstrip line, The second port of first microstrip line is connect with the first port of second microstrip line, the second end of second microstrip line Mouth is connect with the first port of the third microstrip line, and the second port of the third microstrip line and first output port connect It connects, first microstrip line, second microstrip line and the third microstrip line, which are sequentially connected, constitutes three section of the first Chebyshev Impedance transformer.

Preferably, the second port of the 4th microstrip line is connect with the first port of the 5th microstrip line, and described The second port of five microstrip lines is connect with the first port of the 6th microstrip line, the second port of the 6th microstrip line and institute The connection of second output terminal mouth is stated, the 4th microstrip line, the 5th microstrip line and the 6th microstrip line are sequentially connected composition Second Chebyshev, three section impedance transformer.

Preferably, the quantity of the isolation resistance is identical as the quantity of microstrip line included in any one micro-strip transport part.

Preferably, multiple isolation resistances include the first isolation resistance, the second isolation resistance and third isolation resistance, and described the One isolation resistance is arranged between the first microstrip line second port and the 4th microstrip line second port, the second isolation electricity Resistance is arranged between the second microstrip line second port and the 5th microstrip line second port, and the third isolation resistance setting exists Between the third microstrip line second port and the 6th microstrip line second port.

Preferably, the input port to first output port is the first microwave branch, the input port to institute Stating second output terminal mouth is the second microwave branch.

Preferably, the first microwave branch and the second microwave branch are symmetrical arranged, first microstrip line and institute The length and width for stating the 4th microstrip line is all the same, and the length and width of second microstrip line and the 5th microstrip line is homogeneous Together, the length and width of the third microstrip line and the 6th microstrip line is all the same, first output port and described the The characteristic impedance of two output ports is equal.

Preferably, the notch is arranged in first microstrip line, second microstrip line, the third microstrip line, institute The symmetric position of the 4th microstrip line, the 5th microstrip line and adjacent parallel section in the 6th microstrip line is stated, it is described adjacent Parallel section is present in inside single microstrip line or between two adjacent microstrip lines.

The present invention has the advantage that the miniaturization Wilkinson power divider compared with prior art, to all presence The microstrip line of parallel section carries out incision treatment, and a notch is cut out at the parallel section of microstrip line, reduces microstrip line Width, be equivalent to and be added to a series inductance here, to effectively reduce the coupled capacitor that microstrip line generates parallel Bring influences, and can realize the performance for guaranteeing power splitter while power splitter miniaturization, be worth being used more widely.

Detailed description of the invention

Fig. 1 is the electrical block diagram of one miniaturization Wilkinson power divider of the embodiment of the present invention；In figure: 1, Input port；2, the first output port；3, second output terminal mouth.

Fig. 2 is the structural schematic diagram of two miniaturization Wilkinson power divider of the embodiment of the present invention.

Specific embodiment

It elaborates below to the embodiment of the present invention, the present embodiment carries out under the premise of the technical scheme of the present invention Implement, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to following implementation Example.