[天线]25 Design of TEM Horn Antennas for Impulse Radar

Design of TEM Horn Antennas for Impulse Radar )_bR"!Z  
D. A. Kolokotronis, Y. Huang and J. T. Bang r&G
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University of Liverpool xJvM l`2;  
Department of Electrical Engineering and Electronics G|Du/XYh  
Brownlow Hill, Liverpool L69 3GJ, UK kT!Y~c  
dimkoOliv.ac.uk huanmi@,liv.ac.uk and zhaneitOliv.ac.uk vsjl8L  
Abstract - As it is well known, TEM horns are antennas that can achieve wideband )1>fQ9   
characteristics over multiple decades. This special characteristic of these antennas makes them <fJ*{$[p  
really attractive for wideband radar/communication systems, where short time - domain pulses a-t}L{~  
of a very wide frequency range are employed. Although these antennas have been investigated )1KlcF  
by a number of researchers over the last 25 years, as far as we hown, there is very limited .H,wdzg)  
analysis and design guidelines available. In this paper, the TEM horn antenna has been }NQ{S3JW  
investigated using the multiple quarter-wavelength transformer technique, which can be served {jOCz1J  
as a design guideline. Antennas have b .. @bN`+DC!<  
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