Presentation 2007/7/12
Improvement of Scanned Beams of Dielectric Lens Antennas by Cluster Feed
Yosuke TAJIMA, Yoshihide YAMADA,
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Abstract(in English) In ITS services, antennas are required beam scanning ability. Authors designed a lens antenna that could achieve beam scanning over ±30°. Narrow beam widths were maintained on the scanning planes. However, beam shapes were distorted on the transverse planes. The reason of this beam distortion was due to the phase delay on the aperture. In this paper, a cluster feed composed of a group of rectangular horns is proposed. In order to achieve a phase delay correction, a new radiation pattern synthesis method is developed. Resultant excitation coefficients of the cluster feed horns are shown. And the phase correction in the radiation pattern of this feed is clarified. At the beam scanning angle of 30°, the beam shape on the transverse plane is improved to almost same as the beam on the scanning plane and the increase of antenna gain by 1.9dB is achieved.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Cluster feed / Radiation pattern synthesis / Dielectric lens antenna / Wide angle scanning
Paper # A・P2007-45
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Committee AP
Conference Date 2007/7/12(1days)
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Paper Information
Registration To Antennas and Propagation (A・P)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Improvement of Scanned Beams of Dielectric Lens Antennas by Cluster Feed
Sub Title (in English)
Keyword(1) Cluster feed
Keyword(2) Radiation pattern synthesis
Keyword(3) Dielectric lens antenna
Keyword(4) Wide angle scanning
1st Author's Name Yosuke TAJIMA
1st Author's Affiliation Electrical and Electronic Engineering, National Defense Academy()
2nd Author's Name Yoshihide YAMADA
2nd Author's Affiliation Electrical and Electronic Engineering, National Defense Academy
Date 2007/7/12
Paper # A・P2007-45
Volume (vol) vol.107
Number (no) 144
Page pp.pp.-
#Pages 6
Date of Issue