Linear Efficient Broadband Transmitter Architecture at mm-wave frequencies

Award Information
Agency: Department of Defense
Branch: Army
Contract: W911QX-19-C-0004
Agency Tracking Number: A2-7404
Amount: $499,999.92
Phase: Phase II
Program: SBIR
Solicitation Topic Code: A17-027
Solicitation Number: 2017.1
Solicitation Year: 2017
Award Year: 2019
Award Start Date (Proposal Award Date): 2018-11-14
Award End Date (Contract End Date): 2019-11-13
Small Business Information
1634 Presley Court, Auburn, AL, 36830
DUNS: 079712346
HUBZone Owned: N
Woman Owned: Y
Socially and Economically Disadvantaged: Y
Principal Investigator
 J. David Irwin
 (334) 524-2620
Business Contact
 Wenjia (Wendy) Pu
Phone: (334) 524-1118
Research Institution
There is an ever-increasing demand on low-cost high-throughput wireless front-ends. Such high-throughput front-ends support broadband data transmission (multi-Gbit/s) for a wide variety of sensors and unmanned platforms in situational awareness, monitoring, and reconnaissance. Their wideband nature also supports the deployment of broadband communication/radar combo-systems, as well as numerous emerging commercial applications such as 5G networks, augmented reality/virtual reality systems.The transmitter often governs the total output power, energy consumption, linearity, and bandwidth of the communication/radar front-end, which respectively determines the communication distance, energy efficiency, signal-fidelity/emission, and modulation rates. Although mm-Wave transmitters supports large signal bandwidth in theory, existing hardware exhibits limited output power and compromised efficiency, in particular at deep power-back-off situation. Moreover, the linearity of such high-throughput transmitters cannot be enhanced using conventional techniques, such as feedback-based digital pre-distortion (DPD), which are unable to support multi-Gbit/s bandwidth since it requires impractical baseband computation complexity.In phase I, Digital Analog Integration, Inc. and Georgia Tech team have demonstrated the feasibility of the proposed watt-level broadband dual-mode mixed-signal mm-wave Doherty transmitter. In phase II, we will work closely to investigate an all-silicon and silicon/compound-semiconductor heterogeneous integration platforms for the implementation of our novel Doherty PA based highly efficient transmitter architecture.

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

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