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Measurement and Evaluation of Submillimeter-Wave Antenna Quasioptical Feed System by a Phase-Retrieval Method in the 640-GHz Band

Takeshi MANABE, Tomo FUKAMI, Toshiyuki NISHIBORI, Kazuo MIZUKOSHI, Satoshi OCHIAI

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Summary :

A phase-retrieval method is applied to the quasioptical feed system of the offset Cassegrain antenna of the Superconducting Submillimeter-Wave Limb-Emission Sounder (JEM/SMILES) to be aboard the International Space Station for evaluating the beam alignment by estimating the phase pattern from the beam amplitude pattern measurements. As the result, the application of the phase retrieval method is demonstrated to be effective for measuring and evaluating the quasioptical antenna feed system. It is also demonstrated that the far-field radiation pattern of the antenna main reflector can be estimated from the phase-retrieved beam pattern of the feed system.

Publication
IEICE TRANSACTIONS on Communications Vol.E91-B No.6 pp.1760-1766
Publication Date
2008/06/01
Publicized
Online ISSN
1745-1345
DOI
10.1093/ietcom/e91-b.6.1760
Type of Manuscript
Special Section PAPER (Special Section on 2007 International Symposium on Antennas and Propagation)
Category
Antennas

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