Omnidirectional, vertically polarized antenna

Details Omnidirectional, vertically polarized antenna Omnidirectional, vertically polarized antenna

1977-06-07

1980-06-17

Lieberman, E.

Communications: radio wave antennas

Antennas

Active sleeve surrounds feed line

343830, 343899, H01Q 918, H01Q 936

Patent

active

042086620

ABSTRACT:
An omnidirectional, vertically polarized antenna having a lower, 1/4 wavelength skirt made up of circumferentially-spaced arms which extend down from the lower end of a vertical, 1/4 wavelength, upper radiator at an angle between 12 degrees and 25 degrees, and preferably 17 degrees. The upper radiator carries a multi-spoke capacity "hat" to increase its electrical length.

REFERENCES:
patent: 2184729 (1939-12-01), Bailey
patent: 2508438 (1950-05-01), Wilson et al.
patent: 2510287 (1950-06-01), Lane et al.
patent: 3253279 (1966-05-01), Tanner
patent: 3259901 (1966-07-01), Bykerk
patent: 3286269 (1966-11-01), Cramner
Hooton, Amateur Radio Antenna Handbook, Howard W. Sams & Co. Inc, 1962, pp. 74-80, copy A.V. 256 QST, Apr. 1957, p. 111.
The Radio Amateurs Handbook, American Radio Relay League, Forty-Ninth Edition, 1972, p. 591.
Antennas and Radio Propagation TM11-666, Dep't of Army, 1953, pp. 114, 115, 132, 133.

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