SBIR-STTR Award

Innovative Rugged High Power RF Sources for Compact RF Warheads
Award last edited on: 5/7/2014

Sponsored Program
SBIR
Awarding Agency
DOD : Army
Total Award Amount
$426,688
Award Phase
2
Solicitation Topic Code
A12-062
Principal Investigator
Zac Shotts

Company Information

Radiance Technologies Inc

350 Wynn Drive
Huntsville, AL 35805
   (256) 704-3400
   N/A
   www.radiancetech.com
Location: Multiple
Congr. District: 05
County: Madison

Phase I

Contract Number: ----------
Start Date: ----    Completed: ----
Phase I year
2012
Phase I Amount
$99,533
This work describes an innovative approach to the development of a “frozen wave RF source” with only one active component – an ultrafast spark switch. This technique represents a major improvement over existing state of the art by eliminating the need for multiple light activated custom solid state switches and the associated laser trigger generator. The key item, an ultra-fast spark switch must be designed to have the same wave impedance as the transmission line segments that constitute the frozen wave ensemble. Switches with the appropriate turn on characteristics have been demonstrated where switch compactness and wave impedance were not factors. The ability to impedance match in compact frozen wave geometry will be a major focus of the project. Using a frozen wave generator as the RF converter, in this single switch geometry, allows most of the space in a warhead application to be devoted to energy source for radiation and antenna system rather than for a massive laser and optical power train necessary for precision triggering of the solid state switch elements. A systems analysis and study is proposed that will determine packaging constraints and techniques to survive high stresses of launch for warhead applications.

Keywords:
Frozen Wave Generator, Light Activated Switches, Spark Switches

Phase II

Contract Number: ----------
Start Date: ----    Completed: ----
Phase II year
2014
Phase II Amount
$327,155
This work describes an innovative approach to producing high power RF suitable for use in Directed Energy Weapons, based on a “Frozen Wave Generator” as the RF converter. This technique represents a major improvement over existing state of the art by eliminating the need for multiple light activated custom solid state switches and the associated laser trigger generator. The key item, an ultra-fast spark switch must be designed to have the same wave impedance as the transmission line segments that constitute the frozen wave ensemble. Switches with the appropriate turn on characteristics have been demonstrated where switch compactness and wave impedance were not factors. The ability to match the impedance in compact frozen wave geometry will be a major focus of the project. Using a frozen wave generator as the RF converter, in this single switch geometry, allows most of the space in a warhead application to be devoted to energy source for radiation and antenna system rather than for a massive laser and optical power train necessary for precision triggering of the solid state switch elements. The final deliverable for this program will be a TRL-6 prototype RF source with all necessary support equipment to function for a static test.

Keywords:
Directed Energy Weapons, Frozen Wave Generator, Spark Switch