Omnidirectional antenna with hollow point source feed

Details Omnidirectional antenna with hollow point source feed Omnidirectional antenna with hollow point source feed

1987-01-27

1989-04-25

Sikes, William L.

Communications: radio wave antennas

Antennas

Antenna with parasitic reflector

343781P, 343891, H01Q 1917

Patent

active

048252220

ABSTRACT:
An omnidirectional antenna comprises a ring-shaped subreflector surrounding an omnidirectional feed and a ring-shaped main reflector for redirecting radiation from the subsidiary reflector to the target zone. The feed has a focal ring and a hollow centre to accommodate supports, feeders etc which facilitates stacking of antennas.

REFERENCES:
patent: 2486589 (1949-11-01), Chu
patent: 3781897 (1973-12-01), Charlton
patent: 3887926 (1975-06-01), Schwartz et al.
patent: 4014027 (1977-03-01), Reinders
patent: 4672387 (1987-06-01), Waddoup et al.

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