Cavity backed slot antenna

Details Cavity backed slot antenna Cavity backed slot antenna

1977-10-31

1979-01-02

Lieberman, Eli

Communications: radio wave antennas

Antennas

Slot type

343789, H01Q 128, H01Q 1318

Patent

active

041329953

ABSTRACT:
A radio frequency antenna having a flared, discontinuous slot formed on one surface of a dielectric support structure and a feed formed on the opposite surface of such structure. The feed is disposed across a narrow portion of the slot. A housing having a cavity formed therein is provided. The dielectric support is disposed on the housing over the cavity. The cavity has a conductive wall, or deflective plate, disposed beneath a wide portion of the slot. The effects of the feed and the slot-deflection plate combine to provide a flush-mountable antenna having a cardioid-shaped radiation pattern.

REFERENCES:
patent: 2885676 (1959-05-01), Baldwin

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