Power amplifier self-heating compensation circuit
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
-
Jan 7, 2025
Grant Date -
Mar 16, 2023
app pub date -
Sep 15, 2022
filing date -
Sep 15, 2022
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Temperature compensation circuits and methods for adjusting one or more circuit parameters of a power amplifier (PA) to maintain approximately constant Gain versus time during pulsed operation sufficient to substantially offset self-heating of the PA. Some embodiments compensate for PA Gain “droop” due to self-heating using a Sample and Hold (S&H) circuit. The S&H circuit samples and holds an initial temperature of the PA at commencement of a pulse. Thereafter, the S&H circuit generates a continuous measurement that corresponds to the temperature of the PA during the remainder of the pulse. A Gain Control signal is generated that is a function of the difference between the initial temperature and the operating temperature of the PA as the PA self-heats for the duration of the pulse. The Gain Control signal is applied to one or more adjustable or tunable circuits within a PA to offset the Gain droop of the PA.
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International Classification(s)
- 2022 Application Filing Year
- H03F Class
- 1093 Applications Filed
- 432 Patents Issued To-Date
- 39.53 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- H03F Class
- 0 % this patent is cited more than
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