Light-Weight, High-efficient, Wideband Compact Power Amplifier

Award Information
Agency: Department of Defense
Branch: Army
Contract: DAAB07-03-C-K61
Agency Tracking Number: A022-0961
Amount: $70,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2003
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
50 Vermont Avenue, Fort Ethan Allen, Colchester, VT, 05446
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Frederick Raab
 Chief Engineer
 (802) 655-9670
 f.raab@ieee.org
Business Contact
 Frederick Raab
Title: Owner
Phone: (802) 655-9670
Email: f.raab@ieee.org
Research Institution
N/A
Abstract
The military makes extensive use of high-power signals at frequencies from 1.5 MHz to 3 GHz for communication, jamming, and other applications. The proposed ultra-wideband high-efficiency power amplifier is based upon a combination of a high-efficiency RFpower amplifier (PA) and electronic tuning. The high-efficiency PA provides maximum power output and minimum power consumption, thus allowing increases in battery life and reductions in size, weight, and prime power. Electronic tuning ensures that the PAmaintains high-efficiency operation over a wide band of frequencies and in the presence of variable load impedance. Basic power modules with outputs of 200 to 500 W are envisioned. This technology will enable small, light-weight military radios capable of operating over a wide range of frequency and for a long time from a single battery. Examples include an airborne jammer and a manpack communication transceiver. Similar benefitsare possible in a variety of commercial applications. Cellular base stations have similar output power and frequency range, but the average efficiency of current transmitters is no more than 10 percent. Application of this technology can increase theoutput power by 20 percent and reduce the power consumption by a factor of 4 to 6. The resultant transmitter will not only cost less to buy, but also less to operate. Broadcast transmitters and a variety of communication radios can also benefit from thistechnology.

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

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