Apparatus and method for overcoming the effects of signal loss d

Details Apparatus and method for overcoming the effects of signal loss d Apparatus and method for overcoming the effects of signal loss d

1998-07-20

2000-10-24

Hunter, Daniel S.

Telecommunications

Transmitter and receiver at same station

With transmitter-receiver switching or interaction prevention

455284, H04Q 720

Patent

active

061379964

ABSTRACT:
A communications device transmitting and receiving RF signals having an antenna including an antenna core, a plurality of first polarized antenna elements wound about the antenna core in a first direction, a plurality of second polarized antenna elements wound about the antenna core in a second direction, and a plurality of RF PIN diodes inserted in the plurality of first and second polarized antenna elements at the points where the plurality of first polarized antenna elements and the second polarized antenna elements overlap. A communications device and method for decreasing fading of a call due to multipath by switching between polarizations of the antenna when the power level of the RF signals drops below a predetermined threshold. A communications device and method for decreasing fading of a call by averaging power levels on both polarizations of the antenna.

REFERENCES:
patent: 4554554 (1985-11-01), Olesen et al.
patent: 4864641 (1989-09-01), Nakamura
patent: 5568158 (1996-10-01), Gould
patent: 5896113 (1999-04-01), O'Neill, Jr.
patent: 5909196 (1999-06-01), O'Neill, Jr.
patent: 6025816 (2000-02-01), Dent et al.

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