Broadband Solid-State Power Amplifier Predistortion Linearization Scheme

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$79,967.00
Award Year:
2006
Program:
SBIR
Phase:
Phase I
Contract:
N68335-07-C-0007
Award Id:
77019
Agency Tracking Number:
N062-116-0529
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
10070 Barnes Canyon Road, San Diego, CA, 92121
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
107928806
Principal Investigator:
Pei-hwa Lo
Principal Engineer
(703) 448-1116
phl@isl-inc.com
Business Contact:
Sandra Quintero
Senior Contracts Administ
(858) 373-2711
squintero@islinc.com
Research Institute:
n/a
Abstract
Recent advancements on linearizing power amplifiers using the LINC (Linearization on Non-linear Components) architecture have attracted attentions on researchers and engineers. This is primarily caused by two reasons. (1) Maturity and availability of high density and high speed digital electronics signal processing hardware (e.g. DSP or FPGA) make complex signal decomposition computation feasible for real time operation. (2) LINC architecture offers a true uncompromising solution for both linearity and efficiency on power amplifier realization. To resolve the channel imbalance and output combiner distortions issues encountered by the LINC architecture power amplifier, an efficient adaptive digital predistortion technique is proposed. The technique continuously monitors the channel signal conditions and the amplifier output signal quality in order to properly adjust the predistortion gain and phase in the channel signals. The resulting adaptive digital predistortion LINC power amplifier provides superior linearity and efficiency with practical commercial off-the-shelf components. Simulations and analysis will be performed to quantify the performance improvements resulting from the adaptive digital predistortion technique. The proposed technique is amenable to real time implementation on the DSP (digital signal processor) and FPGA (Field programmable gate array) digital hardware.

* 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

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government