Reconfigurable Direct Radiating Array Antenna

Yasuo SUZUKI  Minoru OKUMURA  Taneaki CHIBA  Minoru FURUKAWA  Tasuku MOROOKA  Kazuaki KAWABATA  Motoharu UENO  

IEICE TRANSACTIONS (1976-1990)   Vol.E72   No.3   pp.202-209
Publication Date: 1989/03/25
Online ISSN: 
Print ISSN: 0000-0000
Type of Manuscript: PAPER
Category: Antennas and Propagation

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This paper concerns the study on the Ku band multi-beam direct radiating array antenna technology, which provides frequency reuse and reconfigurable multi-beam capabilities in satellite communication system. The study consists of two dimensional pattern synthesis, beam forming network analysis and design, and fabrication and measurement of an experimental model. The measurement results have shown that the experimental model with 64 array elements including 14 dummy elements has a low loss of less than 2 dB in average and high sidelobe and polarization isolation of more than 27 dB and 29 dB, respectively, over 1 GHz bandwidth in the Ku band. As a result of careful evaluation, it has been confirmed that the design method established here is valid and useful for multi-beam direct radiating array antenna design.