Feeding structures for 60-GHz dielectric lens antenna with low sidelobes

Autor:	Tsukasa Yoneyama, Takashi Shimizu
Rok vydání:	2006
Předmět:	Beam diameter Materials science Computer Networks and Communications business.industry General Physics and Astronomy Dielectric Electron Waveguide (optics) Optics Extremely high frequency Radiator (engine cooling) Electrical and Electronic Engineering Antenna (radio) business Dielectric lens
Zdroj:	Electronics and Communications in Japan (Part II: Electronics). 89:16-26
ISSN:	1520-6432 8756-663X
DOI:	10.1002/ecjb.20256
Popis:	This paper studies a feed structure suitable for connecting a millimeter-wave low sidelobe dielectric antenna with an NRD guide. Specifically, an NRD guide, a rectangular waveguide, a circular waveguide, and a microstrip patch antenna are considered as a primary radiator. It is verified by simulation and experiments that a low sidelobe level and a high gain can be realized if an NRD guide, a rectangular waveguide, or a circular waveguide is used as a feed. For instance, when a dielectric lens antenna with a diameter of 32 mm is used, extremely good characteristics are obtained at 60 GHz including a maximum gain of 24.9 dBi, a sidelobe level of less than −27 dB, and a 3-dB beam width angle of 9°. © 2006 Wiley Periodicals, Inc. Electron Comm Jpn Pt 2, 89(8): 16– 26, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ecjb.20256
Databáze:	OpenAIRE
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