Design and Implementation of a Narrowband HPM Test Facility based on the TPASCO Source

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: F08635-03-M-0110
Agency Tracking Number: F031-0873
Amount: $99,963.00
Phase: Phase I
Program: SBIR
Awards Year: 2003
Solitcitation Year: N/A
Solitcitation Topic Code: N/A
Solitcitation Number: N/A
Small Business Information
VOSS SCIENTIFIC
418 Washington St., S.E., Albuquerque, NM, 87108
Duns: 362713141
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Donald Voss
 Principal Scientist
 (505) 255-4201
 donv@vosssci.com
Business Contact
 Donald Voss
Title: Owner
Phone: (505) 255-4201
Email: donv@vosssci.com
Research Institution
N/A
Abstract
As HPM sources evolve towards actual use, there exists a critical need to determine system susceptibilities to HPM prior to deployment. We propose to design and implement a lightweight, modular, ruggedized narrowband test system appropriate to bothoutdoor field and indoor chamber testing. A total of five TPASCO (Tunable Post Accelerated Split-Cavity-Oscillator) hardware sets will span the 320 MHz - 2.9 GHz frequency range; these will be fitted with novel circular/linear polarization-agile antennasthat will project power densities, repetition rates, pulse lengths, and spectra consistent with virtually any near term narrowband HPM threat. TPASCO is a novel source that utilizes the high spatial modulation efficiency of SCO cavities (approaching100%), demonstrated by AF, Sandia, and recently Voss Scientific, in nominally axisymmetric geometry that allows tuning without need to break vacuum. The basis for this tuning method results from our recent work optimizing L-band SCO modulators, and theprojected TPASCO tunability matches conventional waveguide bandwidths. System advantages accruing from broadband hardware include fewer hardware sets, lower dollar cost, and less changeover downtime. Because frequency is intrinsically determined bycavity size, TPASCO is forgiving of variations in drive voltage, allowing a single low cost, pulse power hardware set to drive multiple TPASCO tubes. ANTICIPATED BENEFITSDuring this effort we will design and implement a highly flexible HPM test facility based on a frequency tunable high power 200 MW peak power source. The resulting facility will conduct experiments on susceptibility of military systems and infrastructureelectronic systems to single-shot and repetitively pulsed electromagnetic energy. By virtue of its portability via land, sea, or air transport, the facility, sensor suite and instrumentation will be universally available.POTENTIAL COMMERCIAL APPLICATIONSCommercial applications of the HPM generator and associated test facility include the assessment of US electronic infrastructure components to attack from high power RF devices. Additionally,

* information listed above is at the time of submission.

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