High Efficiency Radar Transmit Module

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$80,000.00
Award Year:
2006
Program:
SBIR
Phase:
Phase I
Contract:
N68335-06-C-0222
Award Id:
77154
Agency Tracking Number:
N061-027-0089
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
77 Vermont Avenue Fort Ethan Allen, Colchester, VT, 05446
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
057688624
Principal Investigator:
Frederick Raab
Chief Engineer
(802) 655-9670
f.raab@ieee.org
Business Contact:
Frederick Raab
Owner
(802) 655-9670
f.raab@ieee.org
Research Institute:
n/a
Abstract
UHF radar is used for surveillance from unmanned aerial vehicles (UAVs). A typical transmitter must produce multi-kilowatt pulses, but the efficiency of existing transmitters is only 20 to 30 percent. Low efficiency results in transmitters that are unnecessarily large and heavy. It also taxes the limited power available on a UAV and limits the capabilities of the UAV payloads. GMRR proposes to develop a new, high-efficiency transmitter for UHF radar. Efficiency is achieved through a combination of high-efficiency power amplifiers (class D, E, or F), RF-power transistors (GaN or LDMOS), electronic tuning, optimized combiners, and signal processing and control. The efficiency of this architecture is expected to be in the range of 60 to 70 percent. BENEFITS: This technology can be applied directly to UHF radars used for wind profiling and ground penetration (mine detection). With the addition of a wide-band modulator, it can be used in emerging UHF land-mobile and HDTV transmitters. With modification of the power amplifier for operation at higher frequencies, it can be used in cellular base stations. In all of these applications, the new transmitter will offer efficiencies that are double to triple those of the currently available transmitters. Other military applications include the JTRS, manpacks, and hand-held transmitters.

* information listed above is at the time of submission.

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