Tunable Bandstop Filters for Suppression of Co-site Interference and Jamming Sources

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00014-11-M-0305
Agency Tracking Number: N11A-016-0616
Amount: $149,350.00
Phase: Phase I
Program: STTR
Awards Year: 2011
Solicitation Year: 2011
Solicitation Topic Code: N11A-T016
Solicitation Number: 2011.A
Small Business Information
3000 Kent Avenue, West Lafayette, IN, -
DUNS: 832069657
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Eric Hoppenjans
 President
 (765) 430-9269
 eric@indianamicro.com
Business Contact
 Eric Hoppenjans
Title: President
Phone: (765) 430-9269
Email: eric@indianamicro.com
Research Institution
 Purdue University
 William J Chappell
 465 Northwestern Ave
West Lafayette, IN, 47907-
 (765) 494-6225
 Nonprofit college or university
Abstract
This proposal seeks to develop novel, widely tunable bandstop filters for the suppression of co-site interference in next generation phased array radar and electronic warfare systems. The filters are based upon highly loaded evanescent mode cavity resonators that are integrated into standard printed circuit board substrates. This integration and design strategy yields high resonator Q performance in a compact form factor with the additional benefit of low cost manufacturing. The resonator technology will be applied to produce a novel bandstop filter design capable of tunable bandstop performance from 1 to 20 GHz. Preliminary simulations shown rejection levels as high as 60dB in the stopband can be achieved with as little as four series connected resonators. Additionally, by intelligent tuning of the filter resonators, a variable stopband bandwidth can be achieved that is capable of adjusting the bandwidth from 10"s of MHz to 100"s of MHz. The project will also integrate feedback and control sensors for automatic filter tuning and control via an external microcontroller.

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

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