Based on the conventional FET equivalent circuit model,this paper proposes the switch model of 0.25 μm GaAs PHEMT,and completes the extraction and optimization of its equivalent circuit parameters.By comparing the measurement and the simulation of the single-pole single-thru(SPST) switch,it is shown that,in the frequency of 0.1GHz to 20 GHz,its insertion loss error and VSWR error of Port1 and Port2 are less then 0.3 dB,0.24 and 0.19 respectively on ON state;its isolation error and VSWR error of Port1 and Po...
【更新日期】
2008-11-21
【分类号】
TN454
【正文快照】
1引言在过去的数十年里,砷化镓微波单片集成电路(G aA sMM IC)以其良好的高频特性、噪声特性和功率特性在军事和民用领域得到了广泛应用。目前,以PHEMT器件为主的MM IC电路正引起人们极大的兴趣[1-2]。在G aA sMM IC电路的发展过程中,器件模型起着极其重要的作用,且在工艺设计?