Radio frequency power amplifier module
US-2024048106-A1 · Feb 8, 2024 · US
Amplifier performance stabilization through preparatory phase
US8928404B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8928404-B2 |
| Application number | US-201213468976-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 10, 2012 |
| Priority date | May 13, 2011 |
| Publication date | Jan 6, 2015 |
| Grant date | Jan 6, 2015 |
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Abstract
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A method and related systems for amplifier performance stabilization of a digitally predistorted RF power amplifier are disclosed. The characteristics of power amplifiers change as a function of temperature making adaptive digital predistortion highly problematic during initial application of an RF signal to a power amplifier. Embodiments disclose a method and systems in which the power amplifier is taken through a preparatory phase before the RF signal is applied to the power amplifier and the digital predistortion calculation starts. This is achieved by increasing the quiescent current of the power stages beyond nominal values for a rapid warm up and readjusting to its normal bias point when the radio frequency signal is applied and the digital predistortion is turned on.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for stabilizing performance of a power amplifier comprising a first power amplifying device and a second power amplifying device, the method comprising the steps of: determining an operating temperature of the first power amplifier device and an operating temperature of the second power amplifier device; increasing a quiescent current of the first power amplifier device when the operating temperature of the first power amplifier device is less tha…
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Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8928404B2 cover?
- A method and related systems for amplifier performance stabilization of a digitally predistorted RF power amplifier are disclosed. The characteristics of power amplifiers change as a function of temperature making adaptive digital predistortion highly problematic during initial application of an RF signal to a power amplifier. Embodiments disclose a method and systems in which the power amplifi…
- Who is the assignee on this patent?
- Khanifar Ahmad, Buch Yatin, Sideris George, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification H03F3/602. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 06 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).