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This paper presents an SPDT switch which is designed to operate at 8–12 GHz frequency range (X-Band), as a sub module of the front end circuit of a phased array radar. The switch distinguishes itself from its counterparts with its larger frequency range and higher isolation that is uniformly distributed over its bandwidth. It is fabricated using 0.25μm SiGe BiCMOS technology of IHP Microelectronics...