Measurement of UWB antenna efficiency

摘要

The usual narrowband or resonant techniques for measuring antenna efficiency are ill-suited for use with ultra-widehand (UWB) or a resonant antennas. This paper develops an extension of the classic "Wheeler cap" technique that can be applied to UWB antennas. The theory of UWB antenna efficiency is developed, and the techniques of the paper are applied to measure the efficiency of a Time Domain BroadSpec UWB antenna.