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Frequency Characteristics of a Beamforming Network of an Optically Controlled Array Antenna and Its Radiation Pattern Measurements
Kenichi YAMADA Isamu CHIBA Yoshio KARASAWA
Publication
IEICE TRANSACTIONS on Electronics
Vol.E79-C
No.1
pp.68-73 Publication Date: 1996/01/25 Online ISSN:
DOI: Print ISSN: 0916-8516 Type of Manuscript: Special Section PAPER (Special Issue on Optomicrowave Techniques and Their Applications) Category: Optically Controlled Beam Forming Networks Keyword: optically controlled array antenna, two-laser type, fiber array, Fourier transform,
Full Text: PDF>>
Summary:
As an optically controlled array antenna, a "two-laser type" using two laser diodes whose frequency difference is set to the desired microwave frequency has been proposed. In this paper, we confirm experimentally that the beamforming network of the two-laser type array antenna has very broadband characteristics by measuring the amplitude and phase of microwave signals at 1.5 GHz, 10 GHz and 20 GHz. Using the optically controlled beam forming network, the radiation pattern of a 4-element linear array antenna was measured at 1.5 GHz.
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