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Advanced RF Power Amplifier Techniques

Award Information

Agency:
Department of Defense
Branch:
Navy
Award ID:
75219
Program Year/Program:
2005 / SBIR
Agency Tracking Number:
N051-073-0273
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Information Systems Laboratories, Inc.
10070 Barnes Canyon Road San Diego, CA 92121
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2005
Title: Advanced RF Power Amplifier Techniques
Agency / Branch: DOD / NAVY
Contract: N00164-05-C-6095
Award Amount: $67,987.00
 

Abstract:

The power added efficiency of current power amplifiers is often adversely impacted by the linearity requirement. This is especially true for many modern communication signals that have high Peak to Average (PAR) ratio. Although advanced power amplifier linearization techniques such as adoptively controlled feed-forward technologies, analog and digital pre-distortion techniques and Doherty amplifier structures improve efficiency, they still fall short of desired advanced power amplifier efficiency requirements (greater than 60% for full power applications). To accomplish the efficiency and linearity requirements for the advanced power amplifier, an innovative "constant envelope" signal decomposition technique is proposed. The proposed technique is applicable to all signal formats and allows the final stage power transistors to operate in Class B or Class C with minimum (less than 1 dB) back off from the 1 dB compression point. With the advance of high speed digital technologies, the proposed advanced power amplifier will have wide instantaneous (at least 6 MHz) and operational bandwidth (greater than 80 MHz). This advance power amplifier does not require any trade-off between efficiency and linearity. This proposal describes the approach and details behavior modeling techniques that allow accurate performance predictions for various waveform applications.

Principal Investigator:

Pei-hwa Lo
Principal Engineer
7034481116
phl@isl-inc.com

Business Contact:

J. Doss Halsey
Vice President
7034481116
halsey@islinc.com
Small Business Information at Submission:

INFORMATION SYSTEMS LABORATORIES, INC.
8130 Boone Blvd., Suite 500 Vienna, VA 22182

EIN/Tax ID: 541198316
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No