標題: A novel dual circularly polarized microstrip antenna
作者: Hong, Wanchu
Chenq, Chin-Ting
Lin, Yu-De
Kitazawa, Toshihide
電信工程研究所
Institute of Communications Engineering
關鍵字: microstrip antenna;circular polarization;annular ring microstrip;branch-line hybrid
公開日期: 2006
摘要: In this paper, we propose a novel design of dual circularly polarized microstrip antenna of the cogwheel-like annular ring structure. The microstrip sector stubs are added periodically in the outer and inner edges of the microstrip annular ring and an additional microstrip line as a diameter is also placed across the inner circle to enhance performance of the axial ratio. When operated in TM11 mode, this cogwheel-like microstrip annular ring antenna has a relatively wider bandwidth and a relatively smaller size than those of the traditional microstrip annular ring antenna. The three-wire transmission line and branch-line hybrid is employed as the feeding network to excite the righted-handed or left-handed direction of circular polarization.
URI: http://hdl.handle.net/11536/135187
ISBN: 978-2-9600551-6-0
期刊: 2006 EUROPEAN MICROWAVE CONFERENCE, VOLS 1-4
起始頁: 1267
結束頁: +
Appears in Collections:Conferences Paper