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

Design of TEM Horn Antennas for Impulse Radar JsoWaD  
D. A. Kolokotronis, Y. Huang and J. T. Bang q>Ar.5&M_  
University of Liverpool 55jY` b.  
Department of Electrical Engineering and Electronics S^sW.(I  
Brownlow Hill, Liverpool L69 3GJ, UK gE]a*TOZk  
dimkoOliv.ac.uk huanmi@,liv.ac.uk and zhaneitOliv.ac.uk F".IB^}$  
Abstract - As it is well known, TEM horns are antennas that can achieve wideband rE' %MiIK  
characteristics over multiple decades. This special characteristic of these antennas makes them ?!Th-Cc&m  
really attractive for wideband radar/communication systems, where short time - domain pulses t'_,9  
of a very wide frequency range are employed. Although these antennas have been investigated n"Z,-./m  
by a number of researchers over the last 25 years, as far as we hown, there is very limited JUUF^/J  
analysis and design guidelines available. In this paper, the TEM horn antenna has been 1v8:,!C  
investigated using the multiple quarter-wavelength transformer technique, which can be served o*5e14W(:  
as a design guideline. Antennas have b .. V!
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