Frequency selective surface (FSS)

Details Frequency selective surface (FSS) Frequency selective surface (FSS)

1990-06-15

1993-05-04

Hille, Rolf

Communications: radio wave antennas

Antennas

Antenna components

343872, H01Q 1500, H01Q 142

Patent

active

052086038

ABSTRACT:
A frequency selective surface (FSS) for incorporation into the outer skin of an aircraft, for transmitting electromagnetic energy in a predetermined frequency band. The FSS includes three layers sandwiched together with a dielectric material. Arrays of apertures are formed in the two outer layers, which are conductive. The inner layer consists of patches of conductive material. The apertures and patches are in substantial alignment with one another. The apertures and patches can have the shapes of crossed-dipoles, circles, squares, tripoles and Jerusalem crosses. In a preferred embodiment, the shapes of the apertures and patches are geometrically congruent. A dual-band FSS, having apertures and corresponding patches in two different sizes and spacings, can transmit two separate frequency bands.

REFERENCES:
patent: 4125841 (1978-11-01), Munk
patent: 4614947 (1986-09-01), Rammos
patent: 4656487 (1987-04-01), Sureau et al.
patent: 4816835 (1989-03-01), Abiko et al.
patent: 4899164 (1990-02-01), McGrath
patent: 4929959 (1990-05-01), Sorbello et al.

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