A multi unsymmetrical beam tapered slot -vagi antenna for PMMW imaging

Ya Chung Yu*, Chun Yen Huang, Li Yuan Chang, Chin Chung Nien, Jenn-Hawn Tarng

*Corresponding author for this work

研究成果: Conference contribution同行評審

摘要

A compact multi-unsymmetrical beam and high isolation antipodal linearly tapered slot-yagi antenna (TSYA) array with quarter-wave fan-rejections (QWFR) is proposed for feed antenna of lens in the near-field PMMW imaging applications. With changing QWFR structure, the different traveling current path provides the non-uniform phase field distribution for radiation aperture, which creates the function of multi unsymmetrical beamwidth to cover lens for each feed ALTSA at the focal plane, and these side lobe levels (SLL) of radiation patterns of ALTSA transformed by lens can be restrained to enhance the spatial resolution of the near-field imaging lens. Due to quarter-wave shorted circuit fan-rejections, they provide high isolation -30dB between ALTSA array for reducing pattern interference. The proposed ALTSA with QWFR covers 75-95GHz and 3 dB beamwidth is 70 degree for our lens of diameter of 20cm and focal length of 14cm.

原文English
主出版物標題2010 IEEE International Conference on Electronics, Circuits, and Systems, ICECS 2010 - Proceedings
頁面1216-1219
頁數4
DOIs
出版狀態Published - 1 十二月 2010
事件2010 IEEE International Conference on Electronics, Circuits, and Systems, ICECS 2010 - Athens, Greece
持續時間: 12 十二月 201015 十二月 2010

出版系列

名字2010 IEEE International Conference on Electronics, Circuits, and Systems, ICECS 2010 - Proceedings

Conference

Conference2010 IEEE International Conference on Electronics, Circuits, and Systems, ICECS 2010
國家Greece
城市Athens
期間12/12/1015/12/10

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