Common aperture dual mode semi-active laser/millimeter wave sens

Details Common aperture dual mode semi-active laser/millimeter wave sens Common aperture dual mode semi-active laser/millimeter wave sens

1997-10-28

1999-10-26

Wong, Don

Communications: radio wave antennas

Antennas

Combined with diverse-type art device

343725, 343756, 343909, 343708, H01Q 2100, H01Q 1900

Patent

active

059736496

ABSTRACT:
A common aperture, dual mode semi-active laser (SAL) and millimeter wave (MMW) sensor having transreflector configured to allow transmission of SAL energy therethrough, a separator and a fresnel lens configured to pass MMW energy therethrough and to focus SAL energy passing therethrough, the separator being configured to separate SAL energy from MMW energy, and a twist reflector positioned in alignment with the transreflector, configured to rotate the polarization of the MMW energy such that, for received MMW energy, the twist reflector reflects and rotates the received MMW energy toward the transreflector, which reflects it onto a feed and comparator, and for transmitted MMW energy, the transreflector reflects toward the twist reflector, whereupon polarization of the transmitted MMW energy is rotated and reflected therefrom to then pass through the transreflector.

REFERENCES:
patent: 5089828 (1992-02-01), Moss
patent: 5175559 (1992-12-01), Schrank et al.

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