Communications: radio wave antennas – Antennas – Wave guide type
Patent
1974-12-30
1976-08-31
Lieberman, Eli
Communications: radio wave antennas
Antennas
Wave guide type
343840, 343872, 343909, H01Q 1914
Patent
active
039784860
ABSTRACT:
A slotted cylindrical electrically conductive support for a parabolic micro-wave transmitter antenna reflector coaxial with and surrounding a conical antenna reflector whereby omnidirectional rays of energy from said conical antenna pass from the inside of the cylindrical support radially to the outside of said support, because the slots in the support are of such shape and dimensions that each of these slots can be considered as a radiating element. A non-conducting weather protecting film may surround the cylindrical support.
REFERENCES:
patent: 2045398 (1936-06-01), Massey et al.
patent: 2645769 (1953-07-01), Roberts
patent: 3231892 (1966-01-01), Matson et al.
patent: 3761937 (1973-09-01), Tricoles et al.
patent: 3787869 (1974-01-01), Charlton
Oh et al., A Slotted Metal Radome Cap for Rain, Hail, & Lightning Protection, Microwave Journal, 3-68, pp. 105-108.
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