Radio with synthesizer and VCO

Details Radio with synthesizer and VCO Radio with synthesizer and VCO

1994-06-21

1998-08-25

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at same station

With frequency stabilization

455114, H04B 140

Patent

active

057992460

ABSTRACT:
A radio is described having a synthesizer (17) and a VCO (18). Each of the synthesizer and the VCO has a connection to a ground plane (13) of the radio. The ground plane connection of the VCO has a first capacitor (43) and a further ground connection (40) is provided between the VCO and the synthesizer for providing a common baseband ground for the VCO and the synthesizer, isolated with respect to baseband frequency currents in the ground plane of the radio. The arrangement addresses problems arising in radios having power amplifiers with severe output amplifier variations, such as are found in linear radios.

REFERENCES:
patent: 557244 (1896-09-01), Salvi
patent: 4231116 (1980-10-01), Sekiguchi et al.
patent: 5258997 (1993-11-01), Fraser et al.
patent: 5534823 (1996-07-01), Kondou
patent: 5650754 (1997-07-01), Joshi et al.

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