Design of transverse impedance measurement setup and wire method simulation

This paper presents the measurement principle and the design of transverse impedance measurement setup with the wire method. The transverse impedance measurement system with a single wire is composed of a device under test (DUT)/reference line (REF), an inner wire, an adjuster used to adjust the transverse position of inner wire precisely and to excite the dipole resonant mode of DUT, impedance matching section and measurement instrument. The dipole mode and the impedance of the device under test(DUT, 2 856 MHz gibbous cavity) simulated by Microwave Studio are in agreement with the data calculated by ABCI code. The results demonstrated the rationality of system design and availability of system.