Gain and phase calibration for closed loop feedback linearized amplifiers
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United States of America Patent
Stats
-
Mar 22, 2016
Issued Date -
N/A
app pub date -
Mar 17, 2014
filing date -
Mar 15, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Embodiments of a radio frequency (RF) amplification device having an RF amplification circuit and an amplifier control circuit operably associated with the RF amplification circuit are disclosed. The RF amplification circuit is configured to amplify an RF signal in accordance with a transfer function. The amplifier control circuit includes a closed-loop linearization circuit and a calibration circuit. The closed-loop linearization circuit is configured to be activated so that the transfer function defines a closed-loop response and inactive so that the transfer function defines an open-loop response. For example, the closed-loop linearization circuit may become inactive at small-signal power levels. Accordingly, the amplifier control circuit also includes a calibration circuit configured to reduce a difference between the open-loop response and the closed-loop response of the transfer function. In this manner, the performance of the RF amplification device is maintained while the closed-loop linearization circuit is inactive.
First Claim
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Family
International Classification(s)
- 2014 Application Filing Year
- H03F Class
- 1020 Applications Filed
- 951 Patents Issued To-Date
- 93.24 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- H03F Class
- 9.93 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Sep 22, 2027 |
