高均衡量微带宽带功率均衡器
Microstrip power equalizer with great equal range
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摘要: 对用于行波管驱动级的高均衡量微带宽带功率均衡器进行了研究，提出了一种切实可行的电路拓扑。该电路利用并联谐振枝节形成带阻特性，用集总参数电阻实现了对衰减量的调节，形成类似陷波器的效应，用紧凑的结构实现了器件的小型化。针对一种X到Ku频段均衡量达到20 dB的增益曲线，采用上述拓扑结构，进行了仿真研究和实物制作，最终实现满足要求的宽带微波功率均衡器。该均衡器具有宽带宽、高均衡量和小体积的特点。Abstract: A great equal range microstrip power equalizer was studied and a kind of circuit topology was proposed. In the circuit, the parallel stub resonator was used to get bandstop effect, and the resistor was used to modify the attenuation character. Furthermore, a compact structure was employed. Using the above circuit topology, an attenuation curve of equal range up to 20 dB was fulfilled to satisfy a traveling wave tube(TWT) covering X and Ku frequency band. The simulation and its implementation have been carried out. The measured results of the equalizer agree with the simulation results very well. The equalizer has the characteristic of wide bandwidth, great equal range and compact size．
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Key words:
- power equalizer /
- microstrip /
- traveling wave tube /
- wide band
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