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Titolo:
An adaptive array antenna steered by IF local signal phase shifters for K-band broadband fixed wireless access base station
Autore:
Obayashi, S; Shibata, O; Kasami, H; Shoki, H; Suzuki, Y;
Indirizzi:
Toshiba Co Ltd, Ctr Corp Res & Dev, Kawasaki, Kanagawa 2128582, Japan Toshiba Co Ltd Kawasaki Kanagawa Japan 2128582 i, Kanagawa 2128582, Japan
Titolo Testata:
IEICE TRANSACTIONS ON COMMUNICATIONS
fascicolo: 9, volume: E84B, anno: 2001,
pagine: 2523 - 2529
SICI:
0916-8516(200109)E84B:9<2523:AAAASB>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Keywords:
adaptive array antenna; fixed wireless access; base station; local signal phase shifter; K-band;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
15
Recensione:
Indirizzi per estratti:
Indirizzo: Obayashi, S Toshiba Co Ltd, Ctr Corp Res & Dev, Kawasaki, Kanagawa 2128582, Japan Toshiba Co Ltd Kawasaki Kanagawa Japan 2128582 2128582, Japan
Citazione:
S. Obayashi et al., "An adaptive array antenna steered by IF local signal phase shifters for K-band broadband fixed wireless access base station", IEICE TR CO, E84B(9), 2001, pp. 2523-2529

Abstract

Broadband fixed wireless access (FWA) systems offer significantly higher bit rates than current cellular Systems to which adaptive arrays are partly applied. Digital beam forming is being eagerly explored on account of its flexibility, but it will be difficult to apply to the high-speed systems, because its digital signal processing requires huge resources and power consumption. Conventional phased arrays, on the other hand, utilize phase shifters through RF or IF signal lines, but the phase shifters are usually both bulky and expensive. The authors propose an adaptive array steered by IF local signal phase shifters in this paper. The phase shift and the frequency shift of the signal from each antenna element can be simultaneously accomplished at the down conversion stage by the phase-controlled local signal. A prototype receiver operated in the X-band with the proposed configuration and its beam pattern measurement results are also described.

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Documento generato il 03/07/20 alle ore 01:42:26