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IEICE TRANSACTIONS on Communications

An Adaptive Array Antenna Based on the IQ-Division Bandpass Sampling

Shinya SASAKI, Tetsuki TANIGUCHI, Yoshio KARASAWA

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Summary :

In this paper, as an important technology for the software-defined radio, a novel scheme of adaptive array antenna utilizing bandpass sampling technique is proposed. For adaptive signal processing, it is necessary to convert the radio frequency signal received by the antenna that is given by real number into baseband region, i.e., complex number region. Then, the method for dividing the bandpass sampled signal to in-phase and quadrature components is analyzed. The sampling scheme is called the IQ-division bandpass sampling. An adaptive array antenna based on the IQ-division bandpass sampling is characterized by the signal processing at the bandpass sampled signal stage, namely, intermediate frequency stage, not baseband. Finally, we will confirm the validity of the proposed scheme through an experiment in a radio anechoic chamber.

Publication
IEICE TRANSACTIONS on Communications Vol.E86-B No.12 pp.3483-3490
Publication Date
2003/12/01
Publicized
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DOI
Type of Manuscript
Special Section PAPER (Special Issue on Software Defined Radio Technology and Its Applications)
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