Self-feedback radio-frequency soft magnetic power synthesizer

A power combiner and self-feedback technology, applied in waveguide-type devices, electrical components, connecting devices, etc., can solve the problems of increasing the cost of the whole machine, increasing the size of the whole machine, reducing the debugging efficiency of the whole machine, etc., to improve reliability, The effect of reducing the difficulty and cost of debugging and saving internal space

Active Publication Date: 2018-10-16
SOUTHWEST INST OF APPLIED MAGNETICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the existing method of feedbacking the working status of the RF power amplifier components by installing a directional coupler often requires joint debugging and testing by the technicians of the whole machine in order to obtain the best transmission performance, which reduces the debugging efficiency of the whole machine
In terms of structure, it is necessary to reserve enough space for the directional coupler, and design the connection path to connect it with the power amplifier assembly through the cable assembly, which increases the size of the whole machine and increases the cost of the whole machine

Method used

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  • Self-feedback radio-frequency soft magnetic power synthesizer
  • Self-feedback radio-frequency soft magnetic power synthesizer
  • Self-feedback radio-frequency soft magnetic power synthesizer

Examples

Experimental program
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Embodiment 1

[0025] Example 1: see Figure 1 to Figure 4 , a self-feedback radio frequency soft magnetic power synthesizer, comprising a synthesizer main body, the synthesizer main body includes a radio frequency input terminal 3, a power synthesis circuit, and a synthesis output end 4, the radio frequency input end 3 is multiple, and the synthesis output There is one end 4; the synthesis output end 4 is extended along the signal output direction to form an extension section;

[0026] Also comprise a self-feedback circuit, described self-feedback circuit comprises forward coupling feedback circuit, forward feedback output port 5, reverse coupling feedback circuit, reverse feedback output port 6, described forward coupling feedback circuit and reverse coupling Feedback circuits are located on both sides of the extension;

[0027] The forward coupling feedback circuit includes a coupled microstrip line 7 and a compensation network 8 printed on the printed board, and the coupled microstrip l...

Embodiment 2

[0033] Embodiment 2: A specific power combiner built by Embodiment 1 is a self-feedback radio frequency soft magnetic power combiner with 4 inputs and a microstrip port structure. All ports of the synthesizer are of microstrip structure, 3 of the 4 RF input ports are in-phase input, the insertion loss is ≤0.5dB, the forward and reverse coupling degree is 42dB±1.0dB, and the forward and reverse directivity is ≥20dB. The working power of this example is 1200W, and the size is ≤189×135×32 (mm).

[0034] Figure 5 It is the forward feedback curve of this example, because the reverse feedback curve is basically consistent with the forward feedback curve, so the figure shows the forward feedback curve. However, it must be noted that the degree of coupling between forward feedback and reverse feedback can be adjusted according to the needs of use, and there is no limit to keep it consistent.

Embodiment 3

[0035] Embodiment 3: see Image 6 , using a specific power combiner built in Example 1, a 4-way coaxial input and output self-feedback radio frequency combiner. All ports of the synthesizer are of coaxial structure, and the 2 forward feedback terminals and 2 reverse feedback terminals are all SMA type coaxial connectors. The synthesizer has a pulse power of up to 20kW, an insertion loss of ≤0.4dB, a forward and reverse coupling degree of 56dB±0.3dB, a forward and reverse directivity of ≥25dB, and a size of ≤380×326×32.4 (mm).

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PUM

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Abstract

The invention discloses a self-feedback radio-frequency soft magnetic power synthesizer, which comprises a synthesizer main body, wherein the synthesizer main body comprises a plurality of radio-frequency input ends, a power synthesis circuit, a synthesis output end and a self-feedback circuit; and the synthesis output end extends along a signal output direction to form an extended segment. According to the self-feedback radio-frequency soft magnetic power synthesizer, a directional coupler or a cable assembly for connection does not need to be arranged, so that the debugging difficulty and cost of a whole machine are reduced, the internal space of the whole machine is saved and the reliability of the whole machine is improved. The self-feedback radio-frequency soft magnetic power synthesizer is essentially different from a traditional radio-frequency soft magnetic power synthesizer in function, the radio-frequency soft magnetic power synthesizer can provide a system with a feedback signal while carrying out power synthesis through the self-feedback circuit integrated into the synthesizer, and directly monitors the working state of a main channel, and the function is not availableto the traditional radio-frequency soft magnetic power synthesizer.

Description

technical field [0001] The invention relates to a power combiner, in particular to a self-feedback radio frequency soft magnetic power combiner. Background technique [0002] RF power amplifier components are widely used in various transmitters, and are the core equipment in systems such as radar, communication, electronic countermeasures, antennas and antenna arrays. The RF power combiner can combine multiple power signals into one output or distribute one signal into multiple outputs. It is a key device in the RF power amplifier assembly. With the development of electronic information technology, the original electronic tube transmitters have been basically eliminated. At present, solid-state transmitters and digital transmitters are mainly based on power synthesis technology, and the transmission power ranges from hundreds of watts to hundreds of kilowatts. [0003] There are often multiple amplifiers in the power amplifier component, and any change or failure of the wor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P5/16
CPCH01P5/16
Inventor 张大伟王慧丽张峰平谯劼袁宗斌周平章刘昌银
Owner SOUTHWEST INST OF APPLIED MAGNETICS
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