Amplifiers – Modulator-demodulator-type amplifier
Reexamination Certificate
2006-06-27
2006-06-27
Nguyen, Khanh V. (Department: 2817)
Amplifiers
Modulator-demodulator-type amplifier
C330S136000
Reexamination Certificate
active
07068096
ABSTRACT:
An EER amplifier for amplifying an RF signal includes:(II) a first RF amplifier for amplifying the phase portion of the signal;(III) an EER modulator for amplifying the envelope or baseband portion of the signal, including:A) a high frequency operational amplifier;B) a power amplifier;C) a feedback control loop including:(1) a current-to-voltage conversion amplifier having an input coupled to a current monitoring output of the power amplifier and an output,(2) an input buffer amplifier having an input coupled to receive the envelope signal and an output;(3) a summing amplifier having:(a) an input coupled to the outputs of: (a) the current-to-voltage conversion amplifier and (b) the input buffer amplifier, and(b) an output coupled to the current control input of the power amplifier.
REFERENCES:
patent: 5905407 (1999-05-01), Midya
patent: 6084468 (2000-07-01), Sigmon et al.
patent: 6130910 (2000-10-01), Anderson et al.
patent: 6300826 (2001-10-01), Mathe et al.
patent: 6486733 (2002-11-01), Myers et al.
patent: 6590940 (2003-07-01), Camp, Jr. et al.
patent: 6801082 (2004-10-01), Midya et al.
patent: 2002/0079960 (2002-06-01), Myers et al.
Cocconi, A., Slobodan, C., and Middlebrook, R.D., “High-Frequency Isolated 4kW Photovoltaic Inverter for Utility Interface”,Proceedings of the S venth International PCI '83 Conference, 1983, pp. 325-342, Interec Communications, Switzerland.
Cripps, S., “RF Power Amplifiers for Wireless Communications”, 1999, pp. 246-247, Artech House, USA.
Law Office of Robert M. Wallace
Nguyen Khanh V.
Northrop Grumman Corporation
LandOfFree
EER modulator with power amplifier having feedback loop... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with EER modulator with power amplifier having feedback loop..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and EER modulator with power amplifier having feedback loop... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3617993