Wide Bandgap Amplifier Linearization

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-08-C-0185
Agency Tracking Number: N081-039-0382
Amount: $149,858.00
Phase: Phase I
Program: SBIR
Awards Year: 2008
Solicitation Year: 2008
Solicitation Topic Code: N08-039
Solicitation Number: 2008.1
Small Business Information
650 Suffolk Street, Suite410, Lowell, MA, 01854
DUNS: 168849011
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Nickolas Kingsley
 Principal Engineer
 (978) 441-1117
 nick_kingsley@auriga-ms.com
Business Contact
 Yusuke Tajima
Title: Director Modeling and Design
Phone: (978) 441-1117
Email: ytajima@auriga-ms.com
Research Institution
N/A
Abstract
This program addresses the challenges associated with power amplifiers used under multi-tone drive where high operating efficiency is required without adding false signals or errors (intermodulation distortion, IMD) to the output signal. The goal is to reduce all IMD levels below -30dBc without sacrificing the efficiency of the amplifier, under a signal drive condition of up to eight simultaneous tones in L-C bands with an instantaneous bandwidth of 500MHz. A broadband power amplifier technology that covers 3,4,5:1 bandwidths with an output of 25-100W will also be addressed as the basis of the project. Auriga Measurement Systems and BAE have teamed to develop a high efficiency linear amplifier. To achieve this goal, an accurate Gan HEMT device model will be created that is capable of modeling the wide bias voltage range and non-linearity of the device. Once the accuracy of the model is proven, a 50W amplifier that operates from 1-3GHz will be designed. Various techniques will be investigated for improving the amplifier efficiency, including envelope tracking, pre-distortion, and using a Doherty amplifier. Once an adequate model is developed, the foundation will be laid for developing sophisticated EW technologies, including jammers and “spoofers”, for this and other military programs.

* Information listed above is at the time of submission. *

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government