Dual mode antenna apparatus having slotted waveguide and broadba

Details Dual mode antenna apparatus having slotted waveguide and broadba Dual mode antenna apparatus having slotted waveguide and broadba

1989-12-21

1991-06-11

Wimer, Michael C.

Communications: radio wave antennas

Antennas

Plural separate diverse type

343767, 343770, H07Q 2100

Patent

active

050236237

ABSTRACT:
A single aperture antenna system disposed to operate simultaneously in active radar and passive broadband modes is disclosed herein. The dual mode antenna apparatus 40 of the present invention includes a waveguide antenna array 50 which generates a first radiation pattern of a first polarization within an antenna aperture A described thereby. The antenna apparatus 40 of the present invention further includes a broadband antenna array 60 coupled to the waveguide antenna array 50 for generating a second radiation pattern of a second polarization within the aperture A.

REFERENCES:
patent: 3482248 (1969-12-01), Jones, Jr.
patent: 3523297 (1970-08-01), Fee
patent: 4141012 (1979-02-01), Hockham et al.
patent: 4843403 (1989-06-01), Lalezari et al.
patent: 4853704 (1989-08-01), Diaz et al.
patent: 4870426 (1989-08-01), Lamberty et al.

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