Quasi-non-time-differentiating reflector antennas for short-pulse applications

Reflector antennas are excellent candidates for transient scattering applications. With the possible exception of the feed, they are inherently broadband devices and can provide the energy-collimating behavior desired in most ultra-wideband radar applications. This paper presents a reflector antenna configuration that can directly radiate the input feed pulse waveform with little temporal distortion, and without sacrificing the desired collimating characteristics. It also provides the mathematical foundation for this behavior, and suggests two methods of physically implementing the desired response.