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Feeding network for microwave hyperthermia treatment of brain tumor using wideband in-phase power divider

U. T. Ahmed, B. J. Mohammed, A. M. Abbosh

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

Abstract

An in-phase power divider as a feeding network for two-element antenna array for microwave hyperthermia treatment of brain tumor is presented. The proposed power divider is used for the simultaneous power distribution between two element antenna array, where equal amplitude and in-phase signals are required. It is designed using two pairs of coupled lines to achieve 100% fractional bandwidth. The antenna array is designed using corrugated tapered slot antennas to cover more than 100% fractional bandwidth. The whole structure is optimized using CST MWS. The performance of the power divider and the antenna array is analyzed by means of simulations across the band 1-3 GHz, which is used in most if not all microwave hyperthermia applications. To be able to control the direction of the array's mainbeam, a phase shifter is included in the feeding line of one of the antenna elements. The whole structure is tested on a realistic head phantom to investigate the penetration of the fields inside the head.
Original languageEnglish
Title of host publicationISAP 2015
Subtitle of host publicationInternational Symposium on Antennas and Propagation
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages3
ISBN (Electronic)9784885523021
Publication statusPublished - 2015
Externally publishedYes

Keywords

  • Feeding network
  • in-phase power divider
  • antenna array
  • microstrip circuits
  • microwave hyperthermia

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