volume | PIER Journals

2010-04-10

Large Aperture Low Aberration Aspheric Dielectric Lens Antenna for W-Band Quasi-Optics

Jay Thakur,

Dr. Jay Thakur

School of Information and Mechatronics

Gwangju Institute of Science and Technologhy

South Korea

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Won-Gyum Kim,

Mr. Won-Gyum Kim

School of Information and Mechatronics

Gwang-Ju Institute of Science and Technology

South Korea

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Yong-Hoon Kim

Prof. Yong-Hoon Kim

School of Information and Mechatronics

Gwangju Institute of Science and Technology

Korea

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Progress In Electromagnetics Research, Vol. 103, 57-65, 2010

doi:10.2528/PIER10022404

Abstract

An advanced aspheric and asymmetric large aperture dielectric lens antenna is proposed firstly here for high resolution at W-band frequency. Large aperture and aspheric lens provides minimum focusing error and high resolution in millimeter wave quasi-optics application. To the best of the authors' knowledge we design first time 500 mm large aperture lens for W-band quasi optics application. Near field radiation pattern, beam size and focal length of the lens are obtained theoretically and experimentally as well. Dielectric rod waveguide antenna is also designed and employed as a source antenna for the lens. The measured and simulated results of the DRW antenna also show very good performance at W-band frequency, and it has 15.3 dB gain with -22.5 dB sidelobe levels at 94 GHz.

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Jay Thakur, Won-Gyum Kim, and Yong-Hoon Kim, "Large Aperture Low Aberration Aspheric Dielectric Lens Antenna for W-Band Quasi-Optics," Progress In Electromagnetics Research, Vol. 103, 57-65, 2010.
doi:10.2528/PIER10022404

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