Communications: radio wave antennas – Antennas – Plural separate diverse type
Reexamination Certificate
2005-08-02
2005-08-02
Wong, Don (Department: 2821)
Communications: radio wave antennas
Antennas
Plural separate diverse type
C343S720000, C343S754000, C343S7810CA
Reexamination Certificate
active
06924772
ABSTRACT:
A tri-mode co-boresighted seeker including a primary collecting mirror assembly having a parabolic surface and a forwardly located dielectric secondary mirror assembly including a dielectric mirror coating which reflects infrared (IR) energy to an IR detector assembly located on a central longitudinal axis on one side of the secondary mirror while providing substantially unobstructed propagation of millimeter wave RF energy and laser energy in a joint or common signal path therethrough to means located on the other side of the secondary mirror for extracting and diverting laser energy away from the common RF-optical signal path to a laser sensor assembly while causing little or no disturbance to the RF signal as it propagates to a co-located bifurcated waveguide assembly which couples the RF energy to an RF sensor means located behind the primary mirror.
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Dishop Paul M.
Kiernan, Jr. Sherwood C.
Stamm Daniel E.
Walker Donald J.
Yablon William B.
Al-Nazer Leith
Northrop Grumman Corporation
Wong Don
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