Systems and Methods of RF Power Transmission, Modulation, and Amplification

• US 20090298433A1
• Filed: 05/27/2009
• Published: 12/03/2009
• Est. Priority Date: 10/24/2005
• Status: Active Grant

• Current Assignee: ParkerVision, Inc.
• Original Assignee: ParkerVision, Inc.
• Inventors: SORRELLS, David F., RAWLINS, Gregory S.
• Granted Patent: US 9,106,316 B2
• Time in Patent Office: Days
• US Class Current: 455/62
• CPC Class Codes: H04B 1/006 using switches for selecting the desired band H04B1/0057 takes precedence
• CPC Class Codes: H04B 1/525 with means for reducing leakage of transmitter signal into the receiver

Abstract

Embodiments of the present invention reduce or eliminate the need for fixed frequency high Q band filtering for both full duplex (FDD) and half duplex (TDD) systems. Transceiver architectures according to embodiments of the present invention can be designed to have a single input/output for both FDD and TDD based standards. Further, according to embodiments, because the duplexer and/or SAW power losses are lowered or removed altogether, the system power output requirements can be met more easily and with higher efficiency.

Claims

1. A method, comprising:

determining a transmit frequency and a receive frequency;

determining a noise floor requirement based on the transmit frequency and the receive frequency; and

adaptively configuring a transmit waveform at the transmit frequency such that the noise floor requirement is satisfied at the receive frequency.