VHF to EHF performance of a 90-ft quasi-tapered anechoic chamber

This paper reports the measured reflection characteristics of a 90-ft anechoic chamber operated by The Aerospace Corporation. The design of this chamber, described as quasi-tapered, is unique in that it tapers from a large rectangular test region to a smaller square transmitting end. This design incorporates the performance advantages of a fully tapered chamber at low frequencies with some of the flexibility of a rectangular chamber when used at higher frequencies. The performance of this chamber is reported from 100 MHz to 93 GHz.