Title :
Pulse radiation antenna fed with a face-to-face TEM horn
Author :
Liu, Xiaolong ; Fan, Yajun ; Liu, Guozhi ; Wang, Gang ; Wang, Wenbing
Author_Institution :
Inst. of Northwest Nucl. Tech., Xi´´an, China
Abstract :
Greater interest in utilizing antenna systems for electromagnetic compatibility and target identification applications has been focused on the antenna´s short pulse or ultrawideband (UWB) operation capabilities. One typical configuration for realizing a UWB antenna is to use a biconical TEM launcher as the feed to illuminate a parabolic reflector. However, the biconical TEM launcher has a greater aperture blockage. We introduce a novel antenna configuration with a modified face-to-face TEM horn feed. Generally, the face-to-face TEM horn will result in serious aperture blockage. To reduce the aperture blockage, quite a large part of the face-to-face horn is replaced by a metal wire frame. In practice, the modified feed consists of a mode convertor, a small TEM horn cascaded with a metal wire frame. The antenna is proven to be effective for high power subnanosecond pulse radiation.
Keywords :
antenna feeds; antenna radiation patterns; electromagnetic compatibility; electromagnetic pulse; horn antennas; EMC; EMP; UWB antenna; aperture blockage reduction; biconical TEM launcher; electromagnetic compatibility; high power subnanosecond pulse radiation; metal wire frame; mode convertor; modified face-to-face TEM horn feed; parabolic reflector; pulse radiation antenna; short pulse operation; target identification; ultrawideband operation; Antenna feeds; Apertures; Converters; EMP radiation effects; Electromagnetic compatibility; Horn antennas; Reflector antennas; Ultra wideband antennas; Ultra wideband technology; Wire;
Conference_Titel :
Antennas, Propagation and EM Theory, 2000. Proceedings. ISAPE 2000. 5th International Symposium on
Conference_Location :
Beijing, China
Print_ISBN :
0-7803-6377-9
DOI :
10.1109/ISAPE.2000.894820