Vandalism-resistant UHF antenna

Details Vandalism-resistant UHF antenna Vandalism-resistant UHF antenna

1985-03-15

1987-04-28

Lieberman, Eli

Communications: radio wave antennas

Antennas

High frequency type loops

343846, 343872, H01Q 142, H01Q 700

Patent

active

046618210

ABSTRACT:
A vandalism-resistant antenna for the UHF band comprises a ring-shaped radiator printed on a dielectric board or disc mounted within a shallow enclosure of insulating material having high impact strength. The radiator is approximately 1/4 wavelength long at the operating frequency and is located at a constant spacing above a ground plane. A coaxial RF connector fastens the radiator-board assembly to a mounting surface serving as the ground plane, and couples the antenna to a transmitter or receiver.

REFERENCES:
patent: 3623161 (1971-11-01), Fujimoto et al.
patent: 3641576 (1972-02-01), Farbanish
patent: 3696431 (1972-10-01), Holland

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