NDLI: Lens-corrected coaxial-groove horn for illuminating ultra wide area

Content Provider	IEEE Xplore Digital Library
Author	Deguchi, H. Tsuji, M. Kobayashi, A. Omori, A.
Copyright Year	2012
Description	Author affiliation: Department of Electronics, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan (Deguchi, H.; Tsuji, M.; Kobayashi, A.; Omori, A.)
Abstract	Aperture antennas for satellite communications and radar systems require covering a desired area with a high gain and a low loss. When the coverage becomes much wider, horns are suitable as such antennas. Previously, we had developed multimode horns with coaxial grooves for a circular coverage [1]. We had also proposed a dielectric-dome antenna achieving a wider illumination area up to ±70° [2]. However, the aperture is large and also the dome is too heavy. For realizing a compact antenna to illuminate such a wide area, this paper proposes a lens-corrected multimode horn with a coaxial groove and a doughnut-shaped lens that is different from conventional lens-corrected horns with a simple pencil-beam [3]. The aperture-field distribution for shaping the radiation pattern is determined by directivity synthesis based on the phase-retrieval method [4]. As design examples, we present lens-corrected coaxial-groove horn antennas at 24 GHz. Their usefulness is verified by numerical and experimental evaluation for the fabricated antenna.
Starting Page	1269
Ending Page	1272
File Size	222910
Page Count	4
File Format	PDF
ISBN	9781467310017
e-ISBN	9784885522703
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-29
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electronics, Information and Communication Engineers (IEICE)
Subject Keyword	Antenna measurements Horn antennas Apertures Gain Antenna radiation patterns Lenses
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
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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