Low-profile antenna

Details Low-profile antenna Low-profile antenna

2006-05-23

2006-05-23

Vo, Tuyet (Department: 2821)

Communications: radio wave antennas

Antennas

Microstrip

30

Reexamination Certificate

active

07050003

ABSTRACT:
A low-profile antenna includes a metal plate having a feed tab and support tabs. The feed tab and support tabs are folded to create slots. The feed tab and support tabs contact a ground plane. The support tabs perform impedance matching. The ground plane includes a printed circuit board with a top metal layer, a bottom metal layer, and a dielectric middle layer. A feed hole and support holes are formed in the printed circuit board and align with the feed tab and support tabs. The antenna produces a radiation pattern that is substantially omnidirectional in an azimuth direction and substantially null in a zenith direction.

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Deshpande et al, “Analysis of Reactively Loaded Microstrip Disk Antenna,”IEEE Proceedings, vol. 136, Pt. H, No. 5, Oct. 1989, pp. 417-419.

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