System and method for programmable matching of detuned RF components

Patent metadata

Field	Value
Publication number	US-8971218-B2
Application number	US-201213623816-A
Country	US
Kind code	B2
Filing date	Sep 20, 2012
Priority date	Sep 20, 2012
Publication date	Mar 3, 2015
Grant date	Mar 3, 2015

Abstract

Systems and methods are disclosed for returning RF components which exhibit a mismatch with a coupled load. A tuning circuit may be coupled to a signal path of the RF component, wherein the tuning circuit includes a plurality of loads, a switching element associated with each load, wherein each switching element brings the associated load into and out of the signal path, a control line for each switching element, and a phase stage configured to introduce a phase shift, such as 90°, between a first subset of the loads and a second subset of the loads. The disclosure also includes routines for establishing optimum settings for the tuning circuit.

First claim

What is claimed is:

1. A tuning circuit for matching an impedance of a radio frequency signal having a first transmit frequency, comprising:
a signal path;
a plurality of loads;
a switching element associated with each load, wherein each switching element brings the associated load into and out of the signal path and wherein the tuning circuit has a plurality of discrete settings associated with selective operation of the switching elements;
a control line for each switching…

Assignees

• Shor Arie
• Green Michael Richard
• Qualcomm Inc

Inventors

• Shor Arie
• Green Michael Richard

Classifications

• H03H7/40

  Electricity · mapped topic

• H03H7/38 Primary

  Electricity · mapped topic