Antenna device and radio receiver using the same

Details Antenna device and radio receiver using the same Antenna device and radio receiver using the same

1998-09-03

2000-11-28

Wong, Don

Communications: radio wave antennas

Antennas

With radio cabinet

343728, 343742, 343867, 343876, 343895, H01Q 124

Patent

active

06154177&

ABSTRACT:
In antenna device which is to be used in a portable radio receiver, plural loop antennas 1 and 3 which are formed along different faces of a case 9 of the radio receiver, respectively, and switching means 5 for selecting one of received signals from the plural loop antennas are disposed. Reception is performed while selecting a loop antenna having a higher received signal level. When an antenna having the directivity or the plane of polarization which are more advantageous is selected, it is possible to ensure high reception performance.

REFERENCES:
patent: 4358769 (1982-11-01), Tada et al.
patent: 5201072 (1993-04-01), Kobayashi
patent: 5335010 (1994-08-01), Lindemeier et al.
patent: 5649306 (1997-07-01), Vannata et al.
patent: 5905467 (1999-05-01), Narayanasswamy et al.
patent: 5914691 (1999-06-01), Mandai et al.
patent: 5918189 (1999-06-01), Kivela
patent: 5940040 (1999-08-01), Koyanagi et al.

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