A Coaxial Dual Directional Coupler Based on Resistance Compensation
A dual-directional coupler and resistance compensation technology, applied in circuits, electrical components, waveguide-type devices, etc., can solve problems such as unfavorable use of the amplifier as a whole, bulky volume, etc., to achieve expanded versatility, a high degree of customization, and easy adjustment. Effect
Active Publication Date: 2018-11-20
THE 41ST INST OF CHINA ELECTRONICS TECH GRP
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Problems solved by technology
[0004] Existing technical solutions generally simply use parallel coupled lines, and the volume is too large when working at 0.8GHz-2.5GHz, which is not conducive to the use of the amplifier as a whole
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[0038] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0039] Such as Figure 2-3 As shown, the coaxial dual-directional coupler of the present invention includes a straight-through transmission component 1 and two coupling structure components 2, and the two coupling structure components are symmetrically distributed. According to the operating frequency and power requirements of the system, the connector part in the through-transmission component 1 It can be designed as 7-16 type, N type, etc., and the connector part in the coupling structure component 2 can be designed as N type, 3.5mm, etc. In the present invention, the connector in the straight-through transmission component 1 is an N-type connector, and the connector in the coupling structure component 2 is 3.5mm.
[0040] Such as Figure 4 As shown, the two joint inner conductors 4 are respectively distributed at both ends of the straight-t...
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The invention discloses a coaxial dual-directional coupler based on resistance compensation, which belongs to the technical field of directional couplers, and includes a straight-through transmission component and two coupling structure components; the coupling structure component includes a coupling structure main body, a compensation resistor, an insulating component and a cavity body. The present invention uses resistance compensation coupling to reduce the volume of the coupler, and the coupling degree can be realized by changing the resistance to achieve different combinations, which can greatly reduce the volume of the coupler in the corresponding frequency band and meet the use requirements of the whole machine; straight-through transmission The inner conductor, outer conductor and dielectric support of the component are designed in three parts, which greatly expands the versatility of the interface of the coupler and is convenient for users to use; the coupling structure component adopts an independent design, and the part connected to the straight-through transmission component adopts a circular design , It is convenient to adjust the technical indicators of the coupler, and the degree of customization is high.
Description
technical field [0001] The invention belongs to the technical field of directional couplers, in particular to a coaxial dual-directional coupler based on resistance compensation. Background technique [0002] As a signal separation element, the directional coupler is widely used, especially in high-power amplifiers. One is to couple a part of the forward signal for amplitude stabilization to ensure the flatness of the output power of the amplifier; the other is to couple the reverse signal for Monitor the matching of the signal output port to protect the amplifier. [0003] The coupling mechanism of high-power directional couplers is different due to different transmission lines. The basis of the coaxial transmission line coupler is the parallel coupling line, which is mainly composed of two parts: the main transmission line and the secondary coupling line. The schematic diagram of the coupling structure is as follows figure 1 shown. The signal is input from port ① of the ...
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IPC IPC(8): H01P5/18
CPCH01P5/183
Inventor 赵广峰许晓龙宋大伟朱战发
Owner THE 41ST INST OF CHINA ELECTRONICS TECH GRP