Multiple loop antenna

Details Multiple loop antenna Multiple loop antenna

1997-05-28

1999-03-02

Wong, Don

Communications: radio wave antennas

Antennas

High frequency type loops

340572, 343867, H01Q 1112, H01Q 2100, G08B 1314

Patent

active

058777288

ABSTRACT:
A multiple loop antenna is provided which may be connected to either a transmit circuit, a receive circuit, or a transmit/receive circuit. When powered by a transmit circuit, the antenna generates radio frequency magnetic fields in an area or zone proximate to the antenna, but which are substantially canceled at a distance approximately one wavelength and more from the antenna, thereby defining a surveillance zone proximate to the antenna. The loop antenna includes a first, upper loop and a second, lower loop. The upper and loser loops lie in separate, spaced, parallel planes and are preferably disposed at a fixed angle with respect to the surveillance zone.

REFERENCES:
patent: Re29610 (1978-04-01), Minasy et al.
patent: 4016553 (1977-04-01), Novikoff et al.
patent: 4171525 (1979-10-01), Seeley
patent: 4373163 (1983-02-01), Vanderbult
patent: 4394645 (1983-07-01), Humble et al.
patent: 4413254 (1983-11-01), Pinneo
patent: 4642613 (1987-02-01), Pokalsky
patent: 4679035 (1987-07-01), Pfaff et al.
patent: 4700179 (1987-10-01), Fancher
patent: 5305002 (1994-04-01), Holodak et al.
patent: 5459451 (1995-10-01), Crossfield et al.
patent: 5519381 (1996-05-01), Marsh et al.
patent: 5585811 (1996-12-01), Jetzer
patent: 5602556 (1997-02-01), Bowers

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