Antenna apparatus

Details Antenna apparatus Antenna apparatus

1995-03-23

1996-08-27

Hajec, Donald T.

Communications: radio wave antennas

Antennas

Fractional, multiple, or full wave length linear type

343826, 343702, 343846, 343876, H01Q 124

Patent

active

055505546

ABSTRACT:
The invention provides for antenna apparatus having antenna members extending parallel to a ground plane, which members are L-shaped and can be provided in advantageously miniaturized form. Two such antenna members can be provided on the same ground plane so as to achieve antenna diversity and a switch mechanism is provided for switching between the antenna member in a receive mode, and for switching to only one of the antenna members for operation of the apparatus in a transmit mode. The switch mechanism is arranged to ground a feed connector of the antenna member that is not selected for transmission or reception so as to render that antenna member passive.

REFERENCES:
patent: 4750000 (1988-06-01), Schroeder
patent: 5420599 (1990-05-01), Erkocevic

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