Circularly polarized dipole type omnidirectional transmitting an

Details Circularly polarized dipole type omnidirectional transmitting an Circularly polarized dipole type omnidirectional transmitting an

1976-02-27

1977-10-18

Lieberman, Eli

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343821, H01Q 916

Patent

active

040548775

ABSTRACT:
An omnidirectional broad band antenna employs a slot and a pair of radiating arms excited by the slot. In one embodiment slots are formed in a coaxial transmission line and covered by a resin bonded glass fiber layer which serves as an integral radome and permits pressurization. The arms are of substantial girth and one arcs upwardly and circularly and the other arcs downwardly and circularly thus providing a large spacing between arms. The antenna is characterized by a broad bandwidth and low VSWR.

REFERENCES:
patent: 2465245 (1949-03-01), Mabry
patent: 2480182 (1949-08-01), Clapp
patent: 2512137 (1950-06-01), Buchwalter et al.
patent: 2611867 (1952-09-01), Alford
patent: 3340534 (1967-09-01), Fee
patent: 3975733 (1976-08-01), Bogner

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