Linear mode and non-linear mode quadrature PA circuitry

US8892063B2 · kind B2 · utility

Assignee

• RF Micro Devices, Inc. · US

Inventors

• David E. Jones · Layton, US
• William David Southcombe · San Diego, US
• Chris Levesque · Willow View Lane, US
• Scott Yoder · Fuquay-Varina, US
• Terry J. Stockert · Cedar Rapids, US

Key dates

• Filing date: Sep 7, 2011
• Grant date: Nov 18, 2014
• Expiry date: Feb 14, 2032

Classification

• Technology area (CPC H): Electricity
• CPC primary: H03F2203/21157
• WIPO field: Basic communication processes
• WIPO sector: Electrical engineering

Abstract

Embodiments of the present disclosure relate to multi-mode multi-band radio frequency (RF) power amplifier (PA) circuitry, which includes a multi-mode multi-band quadrature RF PA coupled to multi-mode multi-band switching circuitry via a single output. The switching circuitry provides at least one non-linear mode output and multiple linear mode outputs. The non-linear mode output may be associated with at least one non-linear mode RF communications band and each linear mode output may be associated with a corresponding linear mode RF communications band. The outputs from the switching circuitry may be coupled to an antenna port via front-end aggregation circuitry. The quadrature nature of the quadrature PA path may provide tolerance for changes in antenna loading conditions.