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Titolo:
A new phase-shifterless scanning technique for a two-element active antenna array
Autore:
Chou, YH; Chung, SJ;
Indirizzi:
Natl Chiao Tung Univ, Dept Commun Engn, Hsinchu 300, Taiwan Natl Chiao Tung Univ Hsinchu Taiwan 300 Commun Engn, Hsinchu 300, Taiwan
Titolo Testata:
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
fascicolo: 2, volume: 47, anno: 1999,
pagine: 243 - 246
SICI:
0018-9480(199902)47:2<243:ANPSTF>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
POWER COMBINING ARRAY; OSCILLATORS; MODES;
Keywords:
active antenna array; phase-shifterless scattering;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
10
Recensione:
Indirizzi per estratti:
Indirizzo: Chou, YH Natl Chiao Tung Univ, Dept Commun Engn, Hsinchu 300, Taiwan Natl Chiao Tung Univ Hsinchu Taiwan 300 gn, Hsinchu 300, Taiwan
Citazione:
Y.H. Chou e S.J. Chung, "A new phase-shifterless scanning technique for a two-element active antenna array", IEEE MICR T, 47(2), 1999, pp. 243-246

Abstract

In this paper, a new phase-shifterless beam-scanning technique is proposedand demonstrated for a two-element active antenna array. An internal control line with an embedded amplifier is introduced in the array to provide another injection signal other than the mutual-coupling injection signal between antennas. By mixing the effects of the signals from the control Line and mutual coupling, the phase difference between antennas is adjusted by gradually changing the amplifier bias on the control line. A dynamic analysis is presented to explain the scanning mechanism. The measured results showedthat, when the control-line amplifier was biased from the off state to fully on state, the radiation pattern of the array was varied smoothly from the out-of-phase mode (with 180 degrees radiation phase difference) to the in-phase mode (with 0 degrees phase difference). During the scanning process,the antenna oscillators were stably locked, with the deviation of the locked frequency lower than 0.35%.

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Documento generato il 23/01/20 alle ore 07:17:05