Patent · US Active

High efficiency path based power amplifier circuitry

US9077405B2 · kind B2 · utility

65Cited by

130References

22Claims

0Family size

Assignee

RF Micro Devices, Inc. · US

Inventors

David E. Jones · Layton, US
Wayne D. Tattershall · Cedar Rapids, US

Key dates

Filing date	Mar 18, 2013
Grant date	Jul 7, 2015
Priority date	—
Expiry date	May 23, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH03F2203/21157
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A first transmit path, a second transmit path, and a third transmit path are disclosed. The first transmit path includes a first radio frequency (RF) power amplifier (PA) and alpha switching circuitry, which is coupled to an output from the first RF PA. The second transmit path includes a second RF PA and beta switching circuitry, which is coupled to an output from the second RF PA. The third transmit path includes a third RF PA.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.