Modulated scanning antenna

Details Modulated scanning antenna Modulated scanning antenna

1988-10-14

1990-05-22

Hille, Rolf

Communications: radio wave antennas

Antennas

Wave guide type

343777, 343787, H01G 1302

Patent

active

049281097

ABSTRACT:
A scanning antenna comprises a non-magnetic, electrically conductive radiation horn defining an antenna opening having a predetermined central line of focus, and at least one magnetically switchable conductive element such as a reed relay mounted to extend across the antenna opening perpendicular to and spaced from the central line of focus. A magnetic field generator such as an electromagnet is positioned to generate a magnetic field to control switching of the conductive element between its conductive and non-conductive states, and a control circuit controls operation of the magnetic field generator.

REFERENCES:
patent: 2994084 (1961-07-01), Miller
patent: 3004259 (1961-10-01), Shanks et al.
patent: 3007165 (1961-10-01), Engelbrecht
patent: 3021524 (1962-02-01), Kompfner
patent: 3475757 (1969-10-01), Parris
patent: 3573838 (1971-04-01), Ajioka
patent: 4338609 (1982-07-01), Landry
patent: 4387378 (1983-06-01), Henderson
patent: 4491845 (1985-01-01), Rothenberg
patent: 4574289 (1986-03-01), Henderson

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