GaN Technology for GPS L-band Space Power Amplification

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA9453-15-C-0434
Agency Tracking Number: F141-125-1077
Amount: $749,090.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: AF141-125
Solicitation Number: 2014.1
Solicitation Year: 2014
Award Year: 2015
Award Start Date (Proposal Award Date): 2015-08-11
Award End Date (Contract End Date): 2017-11-06
Small Business Information
2071 Lemoine Avenue Suite 302, Fort Lee, NJ, 07024
DUNS: 145051095
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Donald Kimball
 Chief Technical Officer
 (951) 666-3389
Business Contact
 Houman Ghajari
Phone: (858) 272-8800
Research Institution
ABSTRACT:To meet the demands of the A141-125 SBIR solicitation, the MaXentric team proposes the MAST (MaXentrics Adaptive Supply Tracking), which uses envelope tracking technology to enhance efficiency of a radiation hardening Gallium Nitride (GaN) solid-state power amplifier (SSPA) for the global positioning system (GPS) block-III L1-band satellite applications. Based on Phase I efforts, it was concluded that the DC power consumption of the MAST SSPA is almost half compared with the conventional SSPA with a constant envelope multiplexing technique (i.e. 5-code CASM: coherent adaptive subcarrier modulation), and the average power added efficiency (PAE) of the MAST SSPA is 1.3 times higher than that of the digital pre-distortion (DPD) SSPA for 5.4 dB peak-to-average power ratio (PAPR) GPS signal.BENEFIT:Power amplifiers are an integral part of all satellite communications, cellular phones, base stations, and radio systems. They represent one of the most expensive component sub-assemblies in modern wireless infrastructure equipment: their cost, physical size, and performance in terms of linearity, efficiency, and output power are all important drivers in system design. As transmitted waveforms become more complex (with higher peak-to-average ratios and higher signal bandwidths), new and innovative techniques and technologies will be needed to meet the challenges associated with these waveforms. The MAST solution is well suited for providing the necessary technology to meet these requirements by adaptively tracking the supply, which ensures the amplifier is running optimally, reducing the size of the power supply.

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

US Flag An Official Website of the United States Government