The design of a high frequency SP6T Coaxial Switch

High frequency coaxial switch is a necessary device of low-orbit satellite test system. Its transmission frequency is as high as 53 GHz. At present, the highest frequency single pole six throw (SP6T) switch in China is only 40GHz. In this paper, a SP6T switch with frequency as high as 54GHz is designed, which has the characteristics of low VSWR, low Insertion Loss and high Isolation, and can transmit and switch microwave signals almost without loss, Using this switch can build the switch matrix system much more conveniently. The whole structure, key design and measurement results of the switch are given.