Miniaturized transmitter-receiver unit

Details Miniaturized transmitter-receiver unit Miniaturized transmitter-receiver unit

2006-05-16

2006-05-16

Corsaro, Nick (Department: 2684)

Telecommunications

Transmitter and receiver at same station

With transmitter-receiver switching or interaction prevention

C455S078000, C455S562100, C455S121000

Reexamination Certificate

active

07046969

ABSTRACT:
A transmitter-receiver unit has an antenna patch and an IF circuit, between which there is a large frequency difference, on a first side of a multilayer substrate. A high frequency circuit (including a local oscillator and a demodulation unit) except for the IF circuit is provided on a second side of the multilayer substrate. A ground conductive pattern is provided in the interior of the multilayer substrate. The circuit conductive pattern exposed at the second side of the multilayer substrate and a feeding point of the antenna patch conduct to each other through a through hole.

REFERENCES:
patent: 5610617 (1997-03-01), Gans et al.
patent: 5969681 (1999-10-01), O'Neill, Jr.
patent: 6195049 (2001-02-01), Kim et al.
patent: 6236366 (2001-05-01), Yamamoto et al.
patent: 6320543 (2001-11-01), Ohata et al.
patent: 2003/0103006 (2003-06-01), Yamada
patent: 2001-345419 (2001-12-01), None

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