Array antenna apparatus

Details Array antenna apparatus Array antenna apparatus

2005-07-19

2005-07-19

Chen, Shih-Chao (Department: 2821)

Communications: radio wave antennas

Antennas

Combined

C455S280000

Reexamination Certificate

active

06919861

ABSTRACT:
Antenna elements are provided along a linear line at regular intervals to be parallel to each other. The antenna elements receive signals transmitted from a communicating partner and output the signals to a receiving beam former. In the receiving beam former, phase shifters phase-shift the received signals input from the antenna elements of an even element number by π. A combiner adds the received signals that are phase-shifted by π in phase shifters and the signals input from the antenna elements of an odd number to form a received beam. With this configuration, it is possible to realize an array antenna apparatus of a small and simple configuration that reduces the radiation of radio waves to the human body and to other equipment and that is influenced little by the human body and by other equipment.

REFERENCES:
patent: 6252560 (2001-06-01), Tanaka et al.
patent: 6400318 (2002-06-01), Kasami et al.
patent: 6449469 (2002-09-01), Miyahara
patent: 6456238 (2002-09-01), Posey
patent: 6600456 (2003-07-01), Gothard et al.
patent: 2003/0050020 (2003-03-01), Erceg et al.
patent: 2003/0206134 (2003-11-01), Lier et al.
patent: 8-288895 (1996-11-01), None
English Language Abstract of JP 8-288895.

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