Identification system reader with multiplexed antennas

Details Identification system reader with multiplexed antennas Identification system reader with multiplexed antennas

1995-04-28

1998-03-17

Barron, Jr., Gilberto

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a steerable array

342 45, 4552771, 333258, 333262, H01Q 302

Patent

active

057292361

ABSTRACT:
An electronic system 8 is disclosed herein. The system includes circuitry 10 for processing a signal and a plurality of antennas 12a-12b. A plurality of switches 22a-22b are also included. Each of the switches 22a-22b is coupled between the processing circuitry 10 and a corresponding one of the antennas 12a-12b. Each of the switches 22a-22b includes first and second power MOSFETs where the source of the first MOSFET is coupled to the source of the second MOSFET. The system further includes circuitry 28 for selecting of one of the plurality of switches 22a-22b to be on.

REFERENCES:
patent: 4143369 (1979-03-01), Ayers
patent: 4378580 (1983-03-01), Stich
patent: 4924235 (1990-05-01), Fujisaka et al.
patent: 5041835 (1991-08-01), Matsumoto
patent: 5053774 (1991-10-01), Schuermann et al.
patent: 5300900 (1994-04-01), Bellantoni
patent: 5355139 (1994-10-01), Hirata et al.
patent: 5465411 (1995-11-01), Koike

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