Layered dielectric filter for sidelobe suppression

Details Layered dielectric filter for sidelobe suppression Layered dielectric filter for sidelobe suppression

1975-09-11

1977-05-03

Lieberman, Eli

Communications: radio wave antennas

Antennas

With spaced or external radio wave refractor

343909, H01Q 1500

Patent

active

040218120

ABSTRACT:
Sidelobe suppression in directional beam forming antennas is accomplished by means of a spatial filter. The filter geometry consists of flat layers of high dielectric constant dielectric separated by air or other low dielectric constant dielectric substance. The filter is placed directly over the antenna radiating aperture and its dielectric materials have dielectric constant and thickness values that effect full transmission of beam power in a selected beam direction and substantial rejection of it in other directions.

REFERENCES:
patent: 2763860 (1956-09-01), Ortusi et al.
patent: 3698001 (1972-10-01), Koyama et al.
patent: 3835469 (1974-09-01), Chen et al.

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