Amplifiers – Modulator-demodulator-type amplifier
Reexamination Certificate
2008-07-22
2010-12-14
Mottola, Steven J (Department: 2817)
Amplifiers
Modulator-demodulator-type amplifier
C330S12400D, C330S136000
Reexamination Certificate
active
07852149
ABSTRACT:
The present invention is a system for amplifying a signal input. The system may include a signal separator. The signal separator may be configured for receiving the signal input and separating the signal input to form a first component, a second component, a third component, and a fourth component. The system may further include a first modulator. The first modulator may be configured for being connected to the signal separator and may be further configured for receiving and amplifying the first component to form a first modulator output. The system may further include a second modulator. The second modulator may be configured for being connected to the signal separator and may be further configured for receiving and amplifying the second component to form a second modulator output.
REFERENCES:
patent: 6998914 (2006-02-01), Robinson
patent: 2009/0311980 (2009-12-01), Sjoland
Cox, D., et al., “A VHF Implementation of a LINC Amplifier”, IEEE Transactions on Communications, Sep. 1976; pp. 1018-1022; Communications, vol. 24, Issue 9.
Hegazi, G.M., et al., “Improved LINC Power Transmission Using a Quadrature Outphasing Technique”, Microwave Symposium Digest, 2005 IEEE MTT-S International; Jun. 12-17, 2005; pp. 1923-1926.
Marco, L., et al., “Effects of Switching Power Converter Nonidealities in Envelope Elimination and Restoration Technique”, 2006 IEEE International Symposium on Circuits and Systems; May 21-24, 2006; pp. 3137-3140.
Raab, F.H., et al., “High-Efficiency Single-Sideband HF/VHF Transmitter Based Upon Envelope Elimination and Restoration”, Sixth International Conference on HF Radio Systems and Techniques, 1994; Jul. 4-7, 1994; pp. 21-25.
Yao, J., et al., “Power Amplifier Selection for LINC Applications”, IEEE Transactions on Circuits and Systems-II: Express Briefs; Aug. 2006; pp. 763-767; vol. 53, No. 8.
Barbieri Daniel M.
Evans Matthew J.
Mottola Steven J
Rockwell Collins, Inc.
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