Patch antenna

Details Patch antenna Patch antenna

2008-09-23

2008-09-23

Ho, Tan (Department: 2821)

Communications: radio wave antennas

Antennas

Microstrip

C343S770000

Reexamination Certificate

active

11710379

ABSTRACT:
A patch antenna for achieving a vertically-polarized radiation pattern is described. The patch antenna includes a closed-curve slot within which a signal feed point is located. Parasitic slots are disposed outside or inside the closed-curve slot. In one embodiment, the closed-curve slot is a ring slot and the parasitic slots are arc slots having a common center point with the ring slot. The antenna may further include a lower patch capable of producing a different radiation pattern with different polarization and at a different frequency band, to result in a dual-band antenna. The dual-band antenna may operate in the 5.9 GHz DSRC and 1.575 GHz GPS bands.

REFERENCES:
patent: 6710748 (2004-03-01), Yarasi et al.
patent: 6724346 (2004-04-01), Le Bolzer et al.
patent: 6876328 (2005-04-01), Adachi et al.
patent: 7038631 (2006-05-01), Jecko et al.
patent: 7161547 (2007-01-01), Yanagi et al.
patent: 2004/0217907 (2004-11-01), Inoue
patent: 2007/0085741 (2007-04-01), Rafi et al.
patent: 2007/0279286 (2007-12-01), Coutts et al.

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