NDLI: A circularly-polarized aperture array antenna with a corporate-feed hollow-waveguide circuit in the 60 GHz-band

Content Provider	IEEE Xplore Digital Library
Author	Miura, Y. Hirokawa, J. Ando, M. Igarashi, K. Yoshida, G.
Copyright Year	2011
Description	Author affiliation: Dept. of Electrical and Electronic Engineering, Tokyo Institute of Technology, 2-12-1-S3-19 O-okayama, Meguro-ku, Japan (Miura, Y.; Hirokawa, J.; Ando, M.) \|\| Development Department, Japan Radio Co., Ltd., 1-1, Shimorenjaku 5 Chome, Mitaka-shi, Tokyo, Japan (Igarashi, K.; Yoshida, G.)
Abstract	The authors proposed a circular-polarized array antenna by using hexagonal radiating apertures in the 60 GHz-band. The hexagonal radiating aperture is designed, and the good axial ratio characteristics are achieved in the boresight. We analyze the full structure of the 16×16-element array that combines the 2×2-element subarrays and a 64-way divider. The reflection is less than −14dB over 4.9% bandwidth where the axial ratio is less than 2.5dB. High antenna efficiency of 88.7% is obtained at 61.5GHz with the antenna gain of 33.3dBi including losses. The 1dB-down gain bandwidth is 6.8%.
Starting Page	3029
Ending Page	3032
File Size	259268
Page Count	4
File Format	PDF
ISBN	9781424495627
ISSN	19471491
e-ISBN	9781424495634
DOI	10.1109/APS.2011.5997168
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-07-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Apertures Arrays Antenna arrays Bandwidth Reflection Antenna feeds high efficiency waveguide array antenna corporate-feed circular polarized wave
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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