Stub matched antenna and method of feeding same

Details Stub matched antenna and method of feeding same Stub matched antenna and method of feeding same

1979-06-05

1981-03-31

Lieberman, Eli

Communications: radio wave antennas

Antennas

Fractional, multiple, or full wave length linear type

343856, 343864, H01Q 918, H01Q 924

Patent

active

042596734

ABSTRACT:
An antenna having a unique method of feed is comprised of a vertical radiator and a driven element. The driven element is defined by an integral, substantially straight part. RF energy is fed into or extracted from the antenna by a coil perimetrically wound around the straight part of the driven element. Preferably, this coil is comprised of the exposed, insulated inner conductor of a coaxial cable. The coil covers a relatively large segment along the periphery of the driven element giving rise to unique electrical properties. With this method of feed, the antenna exhibits good bandwidth and requires no metal-to-metal contact between feedline and antenna.

REFERENCES:
patent: 1831921 (1931-11-01), Martin
patent: 2124424 (1938-07-01), Leeds
patent: 2334279 (1943-11-01), Neiman
patent: 2866197 (1958-12-01), Kandoian
FM & Repeaters; American Radio Relay League, Inc., (Second Edition, 1978), pp. 70 & 71.

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