Transistor-based miniature microwave-drill applicator

Yehuda Meir, Eli Jerby

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper explores the microwave self-focusing effect, and examines various new applications of transistor-based microwave-drills at <100-W microwave power range. The thermal-runaway instability is analyzed, and a drillability factor is defined heuristically for the minimal power needed to induce hotspots in specific materials. A practical transistor-based microwave-drill scheme using LDMOS-FET is introduced for delicate operations. Variants of this device are proposed for other applications, like local melting, ignition, indentation, plasma generation, and material identification by microwave induced breakdown spectroscopy (MIBS). Experimental results of glass processing, basalt melting and drilling, and thermite powder ignition are introduced as examples for future applications.

Original languageEnglish
Title of host publication2011 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems, COMCAS 2011
DOIs
StatePublished - 2011
Event2011 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems, COMCAS 2011 - Tel Aviv, Israel
Duration: 7 Nov 20119 Nov 2011

Publication series

Name2011 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems, COMCAS 2011

Conference

Conference2011 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems, COMCAS 2011
Country/TerritoryIsrael
CityTel Aviv
Period7/11/119/11/11

Keywords

  • Microwave ovens
  • heating
  • ignition
  • machining
  • melt processing
  • microwave transistors
  • spectroscopy

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