Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
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
Bogner Richard D.
King Leonard H.
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