Multi-band horn antenna using corrugations having frequency...

Details Multi-band horn antenna using corrugations having frequency... Multi-band horn antenna using corrugations having frequency...

2005-04-12

2005-04-12

Ho, Tan (Department: 2821)

Communications: radio wave antennas

Antennas

Wave guide type

C343S756000

Reexamination Certificate

active

06879298

ABSTRACT:
An antenna (100) for microwave radiation including a first horn (135) which includes a plurality of corrugations (150). At least one of the corrugations (150) is formed of a frequency selective surface (FSS) (138). The FSS has a plurality of FSS elements (305) coupled to at least one substrate (310). The substrate (310) can define a first propagation medium such that an RF signal having a first wavelength in the first propagation medium can pass through the FSS (300). The FSS (300) is coupled to a second propagation medium such that in the second propagation medium the RF signal has a second wavelength which is at least twice as long as a physical distance between centers of adjacent FSS elements (305).

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