Presentation 1999/7/23
Microwave Signal Processing Adaptive Beamforming and Electronically Steerable Passive Array Radiator Antenna
Takashi OHIRA, Koichi GYODA, Satoshi DENNO,
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Abstract(in English) An adaptive array concept with microwave signal processing is presented. The array weighting and signal combining are carried out on the microwave stage, while the decision and weight control are executed by DSP. Unlike conventional DBFs, it does not necessitate numbers of frequency converters and analog-to-digital converters but only one of each. The signal combining before A/D conversion offers a significantly wider dynamic range than DBFs. Also proposed hereby is a novel electronically steerable passive array radiator antenna or ESPAR antenna. Thanks to the varactor-loaded passive radiators, it offers full 360-degree beam steering, complete elimination of phase shifters, and single-port feeding.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) microwave signal processing / adaptive array / decision feedback / passive radiator / SDMA
Paper # SAT99-61
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Committee SAT
Conference Date 1999/7/23(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Microwave Signal Processing Adaptive Beamforming and Electronically Steerable Passive Array Radiator Antenna
Sub Title (in English)
Keyword(1) microwave signal processing
Keyword(2) adaptive array
Keyword(3) decision feedback
Keyword(4) passive radiator
Keyword(5) SDMA
1st Author's Name Takashi OHIRA
1st Author's Affiliation ATR Adaptive Communication Research Laboratories()
2nd Author's Name Koichi GYODA
2nd Author's Affiliation ATR Adaptive Communication Research Laboratories
3rd Author's Name Satoshi DENNO
3rd Author's Affiliation ATR Adaptive Communication Research Laboratories
Date 1999/7/23
Paper # SAT99-61
Volume (vol) vol.99
Number (no) 213
Page pp.pp.-
#Pages 6
Date of Issue