同轴插板式相移器数值模拟与实验研究
Numerical simulation and experimental research of coaxial-inserting-fin phase shifter
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摘要: 根据同轴插板式相移器的基本工作原理，对该相移器进行了数值模拟与优化设计，并重点研究了其结构工艺和相移控制方式。在此基础上研制了一个中心频率为4.1 GHz的相移器模型，并通过矢量网络分析仪进行了实验测量。测量结果表明：在4.0～4.2 GHz的频带范围内，该相移器可实现90°的相移量，相移量化精度为1°，相移精度为±１０°,相移器插损1.5 dB。Abstract: Coaxial inserting fin phase shifter is a new kind of high power microwave phase shifter. Based on the fundamental working principle of coaxial inserting fin phase shifter, numerical simulation and optimization design are presented and its structure and control system are discussed. A coaxial-inserting-fin phase shifter model with a central frequency of 4.1 GHz is designed and fabricated. Experiment has been carried out with the vector network analyzer, which shows that in the range of 4.0~4.2 GHz, the phase shifter can realize a phase shift of 90°, phase shift precision realizable can be 1° and phase shift precision is ±10°, the insertion loss of this phase shifter is over 1.5 dB．
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Key words:
- high power microwave /
- phase shifter /
- phase shift precision /
- numerical simulation
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