Pulse or digital communications – Repeaters – Testing
Patent
1982-09-21
1984-06-05
Griffin, Robert L.
Pulse or digital communications
Repeaters
Testing
375 67, 332 18, H03C 106
Patent
active
044532571
ABSTRACT:
This invention is a digital phase modulator for microwave transmitter systems. A digital signal is bandwidth limited at baseband, then is shaped to compensate for the nonlinear reflection coefficient versus bias voltage characteristics in a phase modulator. The shaped signal is applied to the phase modulator to modulate a carrier. The carrier signal is derived from a high power amplifier operating at its maximum power handling capability. Linear multiplication is then obtained, and use of linear intermediate frequency stages, up-converters as well as operation of the high powered amplifier at less than maximum power to obtain linear operation is thus avoided.
REFERENCES:
patent: 4291277 (1981-09-01), Davis et al.
patent: 4412337 (1983-10-01), Bickley et al.
Cuhaci Misel
Hitchcock N. S.
Lo Gerald J. P.
Canadian Patents and Development Limited
Griffin Robert L.
Pascal Edward E.
Watkins Albert W.
LandOfFree
Spectrum shaping microwave digital modulators does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Spectrum shaping microwave digital modulators, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectrum shaping microwave digital modulators will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1501853