Electrically small cavity antenna

Details Electrically small cavity antenna Electrically small cavity antenna

1991-04-19

1993-08-03

Gregory, Bernarr E.

Communications: radio wave antennas

Antennas

With aircraft

343745, 343789, H01Q 128

Patent

active

H00012190

ABSTRACT:
A supersonic aircraft or missile broad bandwidth antenna is provided. This antenna is constructed into a cavity created in the fuselage or wing of the aircraft and covered with a radome for flush mounting. The cavity comprises side walls and a bottom constructed of electrically conductive materials which are caused to be electrically excited by an antenna element located within the cavity. This antenna element, which is capable of broad bandwidth operation, is either passively or actively tuned. Active tuning is carried out by a logic converter circuit connected to the antenna from a communications transceiver.

REFERENCES:
patent: 3009153 (1961-11-01), Masters et al.
patent: 4540988 (1985-09-01), Munk et al.
patent: 4564843 (1986-01-01), Cooper
patent: 4656483 (1987-04-01), Jaquet
patent: 4791429 (1988-12-01), Hannan
patent: 4806944 (1989-02-01), Jacomb-Hood
ARRL Antenna Book, published by the ARRL, Newington, Conn., 15th Ed., 1988, p. 25-1 to 25-25.

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