A Method of Expanding Operating Frequency Band in a Reverberating TEM Cell by Using a Wire Septum

Abstract

This paper presents a method of expanding the operating frequency band of a Reverberating TEM Cell (RTC) for electromagnetic compatibility (EMC) testing To expand the operating frequency band of an RTC this paper places a wire septum inside the cell instead of a solid septum The maximum usable frequency (MUF) for TEM cell operation and the lowest usable frequency (LUF) for reverberating chamber opera non with the wire septum are studied and compared with a conventional solid septum The E field strengths inside the RTC are measured and evaluated The measurement results show that the RTC with the wire septum have similar MUF to the RTC with a solid septum at TEM mode but have much lower LUF at a reverberating mode which proves that the operating frequency band of the RTC can be expanded by using the wire septum