RF MEMS单刀四掷矩阵开关的研究

介绍了一个RF MEMS单刀四掷矩阵开关的设计，用四个串联式、电阻接触型、悬臂梁RF MEMS开关制作在微带电路板上完成。在频带1～5GHz内，单刀四掷矩阵开关的插入损耗〈0．8dB，开关隔离度〉38dB，驻波系数〈1．2。悬臂梁开关的激励电压为直流电压35～45V。

Study of RF MEMS Single-Pole-Four-Throw Switch

The design of an RF MEMS Single-Pole-Four-Throw switch is introduced. It consists of four series-configured, resistive-contact, cantilever switches based architecture in micro-strip transmission line. The SP4T switch yields an insertion loss of about 0.8 dB and a maximum VSWR of 1.2 in the frequency range from 1 GHz to 5 GHz .A minimum of 38 dB isolation between the ports has been achieved in the same frequency range. This SP4T switch is actuated by a DC voltage of 35-45 dc volt.