Telecommunications – Receiver or analog modulated signal frequency converter – Frequency modifying or conversion
Reexamination Certificate
2011-03-01
2011-03-01
Phu, Sanh D (Department: 2618)
Telecommunications
Receiver or analog modulated signal frequency converter
Frequency modifying or conversion
C455S323000, C455S324000, C333S026000
Reexamination Certificate
active
07899432
ABSTRACT:
In an embodiment, a submillimeter wave heterodyne receiver includes a finline ortho-mode transducer comprising thin tapered metallic fins deposited on a thin dielectric substrate to separate a vertically polarized electromagnetic mode from a horizontally polarized electromagnetic mode. Other embodiments are described and claimed.
REFERENCES:
patent: 4673897 (1987-06-01), Chua et al.
patent: 7095292 (2006-08-01), Sayanagi et al.
patent: 7804443 (2010-09-01), Nagaishi et al.
Chattopadhyay Goutam
Manohara Harish
Siegel Peter H.
Ward John
California Institute of Technology
Milstein Joseph B.
Milstein Zhang & Wu LLC
Phu Sanh D
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