Apparatus and method for controlling feed-forward amplifiers

Details Apparatus and method for controlling feed-forward amplifiers Apparatus and method for controlling feed-forward amplifiers

2003-06-25

2008-03-11

Choe, Henry (Department: 2817)

Amplifiers

With amplifier bypass means

C330S149000

Reexamination Certificate

active

07342446

ABSTRACT:
An apparatus and method for operating a feed-forward amplifier in which, after the signal-cancellation and intermodulation-cancellation loops have initially been nulled, the feed-forward amplifier is operated so that both loops are controlled so as to minimize intermodulation at the output of the feed-forward amplifier.

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Young Yun Woo, et al., Electrical and Electronics Engineers: “Feedforward Amplifier for WCDMA Base Stations with a New Adaptive Control Method”, 2002 IEEE MTT-S International Microwave Symposium Digest (IMS 2002), Seattle, Washington, Jun. 2-7, 2002, IEEE MTT-S International Microwave Symposium, New York, NY : IEEE, US, vol. 2 of 4, Jun. 2, 2002, pp. 769-772.
Australian Government: IP Australia, Examiner's first report on Australian patent application No. 2003247621, mailed Mar. 14, 2007.
Supplementary Partial European Search Report for European Application No. EP 03 76 1291, mailed Apr. 26, 2007.

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