A planar covered multi-slot-array heat applicator with beam scanning capability for interstitial microwave hyperthermia

Dongki Kim, Namgon Kim, Changyul Cheon, Youngwoo Kwon

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

2 Scopus citations

Abstract

A planar covered multi-slot-array heat applicator with beam scanning capability is developed for interstitial microwave hyperthermia. The interstitial applicator is based on multi-slot-array structure, and beam scanning capability is added by gradual variation of the slot sizes. Through the choice of input frequencies, concentrated beam can be generated at the designed slot positions, which provides focused heating as well as additional dimension of beam control. A low permittivity dielectric cover is placed on top of the slot arrays to double in function as a protective layer and a dielectric lens which helps to flatten the wavefront to allow the microwave radiation deeper into the heating material. The measured infra-red images and thermal distributions confirm the beam scanning capability of the proposed applicator. It is also shown that the heating volume and uniformity can be improved by the proposed beam scanning applicator compared with the fixed beam applicator using uniform slot arrays.

Original languageEnglish
Title of host publication2010 IEEE MTT-S International Microwave Symposium, MTT 2010
Pages1608-1611
Number of pages4
DOIs
StatePublished - 2010
Event2010 IEEE MTT-S International Microwave Symposium, MTT 2010 - Anaheim, CA, United States
Duration: 23 May 201028 May 2010

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
ISSN (Print)0149-645X

Conference

Conference2010 IEEE MTT-S International Microwave Symposium, MTT 2010
Country/TerritoryUnited States
CityAnaheim, CA
Period23/05/1028/05/10

Keywords

  • Beam scanning
  • Covered slot
  • Heat applicator
  • Hyperthermia
  • Thermal distribution

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