Diamond Studded Micro Helix TWT

Period of Performance: 08/04/2006 - 05/04/2007


Phase 1 STTR

Recipient Firm

Genvac Holdings, Ltd., Dba: Teraphysics
110 Alpha Park
Cleveland, OH 44143
Firm POC
Principal Investigator

Research Institution

Research Triangle Institute
3040 Cornwallis
Research Triangle Pk, NC 27709
Institution POC


A highly efficient, very wide bandwidth, diamond studded micro helix TWT for operation at 95 GHz will be designed and fabricated by means of a novel application of solid state micro fabrication technology. Because of the nature of the fabrication process proposed here, this device can be built as a single TWT or just as readily as an array of TWTs. By spatially combining the power output of several TWTs in an array, an electronically steerable power output of hundreds of Watts is quite feasible. The design will be conducted utilizing well established computational techniques first introduced by the authors and now widely adopted. The fabrication of the micro helix TWT will rely entirely upon lithography and other solid state techniques. Because this fabrication technique results in a helical circuit that is supported by a minimal amount of low permittivity dielectric, it is anticipated that the bandwidth and efficiency will be much higher than for a conventional helix.