High frequency multi-turn loop antenna in cavity

Details High frequency multi-turn loop antenna in cavity High frequency multi-turn loop antenna in cavity

1991-11-29

1994-08-23

Hajec, Donald

Communications: radio wave antennas

Antennas

High frequency type loops

343745, 343895, 343708, H01Q 1112

Patent

active

053411480

ABSTRACT:
A compact high frequency multi-turn loop antenna is provided for use on a conductive structure such as the airframe of an airborne vehicle. The antenna employs a plurality of interconnected conductive loops which are magnetically coupled to a conductive structure. One end of the conductive loops is coupled via tuning and impedance matching circuits to a transceiver for transmitting and receiving signals therefrom. The other end of the conductive loops is coupled to ground. When transmitting a signal, the transceiver excites a current on the conductor which induces a magnetic field that excites the conductive structure. Upon receiving a signal, the conductive structure is excited which in turn generates a magnetic field through the plurality of loops and induces a current on the conductor. The antenna may advantageously be mounted within a conductive cavity structure which in turn is connected to the conductive structure.

REFERENCES:
patent: 2472106 (1949-06-01), Hansen
patent: 3568206 (1971-03-01), Sisson
patent: 3823403 (1974-07-01), Walter et al.
patent: 3956751 (1976-05-01), Herman
patent: 4288794 (1981-09-01), Osborne et al.
patent: 4644366 (1987-02-01), Scholz
patent: 4801944 (1989-01-01), Madnick et al.
patent: 4804968 (1989-02-01), Ohe et al.

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