Pulse or digital communications – Transmitters – Angle modulation
Reexamination Certificate
2006-05-09
2006-05-09
Chin, Stephen (Department: 2634)
Pulse or digital communications
Transmitters
Angle modulation
C375S239000, C375S279000, C375S329000
Reexamination Certificate
active
07042960
ABSTRACT:
Various mixer topologies, configured to cancel various low order spurs. The mixer topologies each include a pair of mixers and a plurality of couplers. The couplers are configured to cancel specific spurs. As such, the mixer topology eliminates the need for band splitting thus allowing larger input frequency ranges and allows for simpler and less expensive filtering.
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Chin Stephen
File Erin M.
Katten Muchin & Rosenman LLP
Northrop Grumman Corporation
Paniaguas John S.
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