论文部分内容阅读
设计了一款工作频率为DC～35 GHz的超宽带单刀四掷开关单片集成电路,其单片电路内部集成了驱动2∶4译码器。通过ADS软件对多种开关电路拓扑进行优化,设计出了一种合理的开关结构。采用先进的E/D PHEMT工艺进行版图设计并进行了版图电磁场仿真验证,在GaAs PHEMT工艺线上进行了流片,对制作的芯片进行了在片测试,测试结果表明,在DC～35 GHz频率范围内,单刀四掷单片开关的插入损耗(IL)小于3.5 dB,隔离度大于30 dB,回波损耗小于-10 dB,易于控制,满足设计要求,在微波电路T/R组件中有很好的应用前景。目前未见同类超宽带单刀四掷单片开关的相关报道。
An ultra-wideband single-pole four-throw switch monolithic integrated circuit operating at DC ~ 35 GHz is designed. The 2: 4 decoder is integrated in the monolithic circuit. Through ADS software to optimize a variety of switching circuit topology, designed a reasonable switch structure. The advanced E / D PHEMT process was used for the layout design and the field electromagnetic field simulation was carried out. The flow sheet was made on the GaAs PHEMT process line, and the on-chip test was carried out on the fabricated chip. The test results show that at DC ~ 35 GHz Range single pole four throw single switch insertion loss (IL) is less than 3.5 dB, isolation greater than 30 dB, return loss less than -10 dB, easy to control to meet the design requirements in the microwave circuit T / R components are very Good application prospects. No similar ultra-wideband SPST monolithic switch reported.