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Design of a TEM Horn Antenna for Impulse Response Measurement System  

정경호 (한양대학교 전자전기컴퓨터공학부)
편성호 (한양대학교 정보통신공학과)
정삼영 (정보통신부 전파연구소)
최재훈 (한양대학교 전자전기컴퓨터공학부)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.14, no.7, 2003 , pp. 669-676 More about this Journal
Abstract
In this paper, a novel design method for an ultra-wide band TEM horn antenna is proposed on the basis of parallel plate waveguide theory. A principle of TEM modes generation is analyzed and the characteristics of this antenna are experimentally investigated. The proposed TEM horn antenna has an exponentially tapered structure to increase matching bandwidth. Also, the designed TEM horn has shortened length but increased aperture so that the bandwidth for cutoff frequency is increased. The measured result show that the proposed TEM hem antenna has the frequency band of 75 MHz to 1200 MHz for VSWR less than 2.0 and the bandwidth of the TEM horn becomes more than twice comparing to that of a linearly tapered TEM hem. It is anticipated that the manufactured antenna is applicable to UWB systems for impulse response measurement.
Keywords
TEM horn; Impulse Response; UWB; EMC;
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