Set-top box having an improved patch antenna

Details Set-top box having an improved patch antenna Set-top box having an improved patch antenna

2006-07-04

2006-07-04

Chen, Shih-Chao (Department: 2821)

Communications: radio wave antennas

Antennas

With radio cabinet

C343S7000MS

Reexamination Certificate

active

07071883

ABSTRACT:
A set top box is provided with a patch antenna to wirelessly communicate with other devices. In one embodiment, the set top box has a metallic enclosure with a non-metallic bezel covering the front of the device. A communication circuit board with an imprinted patch antenna is located in the interstitial space between the metallic enclosure and the non-metallic bezel. The communications board preferably comprises a thin (0.06 inch) FR-4 circuit board with etched copper cladding. The patch antenna preferably comprises a ground plane on one side of the circuit board, and a rectangular patch on the opposite side of the circuit board. The patch is side-fed by a microstrip feed. The dimensions of the antenna are selected to optimize the antennas performance in frequency range between 2.400 and 2.483 GHz when located in the above-described interstitial space.

REFERENCES:
patent: 5111211 (1992-05-01), Dahlberg
patent: 5594455 (1997-01-01), Hori et al.
patent: 5977710 (1999-11-01), Kuramoto et al.
patent: 6023241 (2000-02-01), Clapper
patent: 6028764 (2000-02-01), Richardson et al.
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patent: 6795688 (2004-09-01), Plasson et al.
patent: 2002/0194621 (2002-12-01), Tran et al.
Microstrip Antennas,Robert E. Munson;Antenna Engineering Handbook,3rdEdition, Chapter 7, 1993, (32 p.).

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