Method for computation of single pole multi-throw switches with a matching transformer on the input

Abstract

The authors propose a method for computation of electrical parameters of single pole multi-throw (SPMT) switch, the input matching of which is provided by the transmission line transformer, located on its input. The influence of parameters of line segments, which connect the lines branching outputs and keys in each path, on the value of SPMT switch operating parameters are offered. Use of the proposed method is demonstrated by the way of example of design and simulation of SPDT and SP4T switches with different types of keys.

Keywords

• single pole multi-throw switch
• SPMT switch
• SPMT matching
• impedance transformation