Ring shaped antenna

Details Ring shaped antenna Ring shaped antenna

1996-10-24

1998-10-06

Le, Hoanganh T.

Communications: radio wave antennas

Antennas

Microstrip

343878, 343816, 343835, H01Q 138

Patent

active

058183906

ABSTRACT:
An antenna for broadcasting omnidirectionally is disclosed. The antenna includes a cylindrical housing which has a lip which includes slots adapted to receive a patch antenna strip and a conductive ring. A GPS receiver and electronics package may be placed in the center of the housing. The patch antenna strip which includes a number of patch antennas broadcasts and receives radio signals. The conductive ring absorbs energy broadcast from the patch antennas and rebroadcasts the signal omnidirectionally. The resulting signal has a high gain and a wide bandwidth. A third embodiment in which the conductive ring is incorporated into a housing cover is also disclosed. The antenna is easily and inexpensively assembled and is more durable and reliable than prior art antennas.

REFERENCES:
patent: 4605932 (1986-08-01), Butscher et al.
patent: 5400040 (1995-03-01), Lane et al.

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