DocumentCode
3567249
Title
A balanced adaptive beamforming system for broadband wireless communications
Author
Seong-Sik Jeon ; Yuanxun Wang ; Itoh, T.
Author_Institution
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
Volume
2
fYear
2002
Firstpage
1357
Abstract
A broadband analog beamformer is realized in the form of balanced variable attenuators using PIN diodes. The phase deviation due to change in junction capacitance of a PIN diode with respect to applied voltage is improved by using a balanced architecture in the design of the variable attenuator. Measurement shows flat phase transition and linear attenuation over the frequency range from 2.5 GHz to 3.0 GHz, which can provide giga bit data throughput for QPSK modulated signal.
Keywords
array signal processing; attenuators; p-i-n diodes; quadrature phase shift keying; radio equipment; 2.5 to 3.0 GHz; PIN diode; QPSK modulation; analog beamformer; balanced adaptive beamforming system; balanced variable attenuator; broadband wireless communication; Adaptive systems; Array signal processing; Attenuation measurement; Attenuators; Capacitance; Chirp modulation; Frequency measurement; Phase measurement; Throughput; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Symposium Digest, 2002 IEEE MTT-S International
ISSN
0149-645X
Print_ISBN
0-7803-7239-5
Type
conf
DOI
10.1109/MWSYM.2002.1011921
Filename
1011921
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