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

Design of TEM Horn Antennas for Impulse Radar -(bXSBs#  
D. A. Kolokotronis, Y. Huang and J. T. Bang )6,de2Pb  
University of Liverpool iOR_[y,  
Department of Electrical Engineering and Electronics Vr6@>@SC  
Brownlow Hill, Liverpool L69 3GJ, UK 8$85^Of  
dimkoOliv.ac.uk huanmi@,liv.ac.uk and zhaneitOliv.ac.uk Xu<k3oD7  
Abstract - As it is well known, TEM horns are antennas that can achieve wideband Sp@^XmX(S  
characteristics over multiple decades. This special characteristic of these antennas makes them 1|kvPo#  
really attractive for wideband radar/communication systems, where short time - domain pulses *)ardZV${  
of a very wide frequency range are employed. Although these antennas have been investigated Qy^1*j<@&  
by a number of researchers over the last 25 years, as far as we hown, there is very limited Pz>s6 [ob  
analysis and design guidelines available. In this paper, the TEM horn antenna has been K`iv c N"  
investigated using the multiple quarter-wavelength transformer technique, which can be served <3xyjX'NE  
as a design guideline. Antennas have b .. MBt9SXM  
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