DESIGN OF A TRM CALIBRATION KIT FOR THE ZMA COAXIAL INTERFACE USING ANSOFT HFSS

摘要

When new coaxial interfaces become available, it is important to validate their performance. The best way to do this is by using a calibration kit that eliminates the effects of adapters in the measurement. This article discusses the design and implementation of a TRM calibration kit for a ZMA interface. The ZMA interface is a high coupling force bayonet connector used in microwave applications up to 12.4 GHz. The calibration kit is designed for a frequency band of 0.045 to 12.4 GHz. The systematic errors and the effect of adapters in network measurements are reviewed. The steps used when designing the calibration standards for the ZMA interface using the High Frequency Structure Simulator (HFSS~(~R)) software from Ansoft Corp. are then described.