【摘要】 研究了具备高隔离度性能的Ku波段基于PIN二极管的微带型开关电路,通过采用含有多个子单元电路的拓扑结构以及合理优化子单元电路参数,解决了微带型开关在微波频段难以实现高隔离度的难题.所研制的开关电路在15.75～16.25GHz频段范围内,隔离度大于95dB,插入损耗小于4dB,输入端S11均小于-12dB,输出端S22均小于-20dB,电路体积仅为34mm×11mm×5mm.更多还原

【Abstract】 This paper presents a microstrip switch using pin diodes for Ku-band applications.At high frequency,especially for millimeter-wave applications,it is hard to obtain a switch with high-isolation,so this paper makes an effort to develop isolation of the switch using a novel topology that contains multiple unit cells and optimizes parameters of the unit cell circuit.The isolation of the fabricated switch is better than 95dB from 15.75 to 16.25GHz,the insertion loss is less than 4dB,S11 is better than-12dB,S22 is better than-20dB,and the entire circuit size is only 34mm×11mm×5mm.更多还原