標題: Broadband tapered microstrip leaky-wave antenna
作者: Hong, WC
Chen, TL
Chang, CY
Sheen, JW
Lin, YD
電信工程研究所
Institute of Communications Engineering
關鍵字: broadband planar balun;feeding structure;leaky-wave;microstrip;tapered antenna
公開日期: 1-Aug-2003
摘要: This study proposes a novel scheme based on the characteristics of leaky-wave antennas for the empirical design of broadband tapered microstrip leaky-wave antennas. This scheme can explain and approximately model the radiation characteristics of a linearly tapered leaky-wave microstrip antenna. A broadband feeding structure that uses the balanced and the inverted balanced microstrip lines to form a pair of broadband baluns is also presented. The measured return loss of the inverted balanced microstrip lines has a VSWR less than or equal to 2 from dc to 18.6 GHz and that of the back-to-back feeding structures has a VSWR less than or equal to 2 from 2.2 to 18.6 GHz. This feeding structure can be used to feed a broadband planar leaky-wave antenna with a fixed mainbeam that uses the tapered microstrip structure. The measured bandwidth of the antenna for a VSWR less than or equal to 2 exceeds 2.3:1.
URI: http://dx.doi.org/10.1109/TAP.2003.814739
http://hdl.handle.net/11536/27679
ISSN: 0018-926X
DOI: 10.1109/TAP.2003.814739
期刊: IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
Volume: 51
Issue: 8
起始頁: 1922
結束頁: 1928
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