US Patent 7612684 Dual mode RF power amplifier

Patent 7612684 was granted and assigned to Intel on November, 2009 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Intel

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7612684

Date of Patent

November 3, 2009

Patent Application Number

11767223

Date Filed

June 22, 2007

Patent Primary Examiner

‌

Hung T. Nguyen

Patent abstract

Briefly, in accordance with one or more embodiments, a dual mode power amplifier is capable of operating in either linear mode such as class A operation, or a non-linear mode such as class F operation. The power amplifier may be utilized in an RFID interrogator. The power amplifier may be biased to operate in a linear mode if the power amplifier is operating in a higher linearity mode, or may be biased to operate in a non-linear mode if the power amplifier is operating in a higher efficiency, lower power mode. The power amplifier may comprise two or more amplifiers coupled in parallel. A current mirror circuit may turn on more amplifiers if the power amplifier is operating in a higher power mode, and may turn on fewer amplifiers if the power amplifier is operating a lower power mode.