DocumentCode :
664732
Title :
A Ku-band miniaturized microwave ablation system integrated on a micromachined silicon applicator
Author :
Kihyun Kim ; Namgon Kim ; Sung-Hyun Hwang ; Taeyoon Seo ; Sangho Lee ; Yong-Kweon Kim ; Youngwoo Kwon
Author_Institution :
Dept. of EECS & INMC, Seoul Nat. Univ., Seoul, South Korea
fYear :
2013
fDate :
2-7 June 2013
Firstpage :
1
Lastpage :
4
Abstract :
A fully integrated thermal ablation system on a micromachined silicon platform is developed for low-power microwave hyperthermia at Ku-band. The heat applicator has been fabricated using Microelectromechanical Systems (MEMS) technology for miniaturization and integration with the active circuits. A Ku-band source module consisting of a voltage controlled oscillator, a driver amplifier, and a high power amplifier has been implemented in monolithic microwave integrated circuits (MMIC´s) and integrated on the applicator platform together with a directional coupler and power detectors for power monitoring. The fully integrated heat applicator was realized in a small form factor of 8 mm × 56 mm × 0.6 mm. In-vitro and In-vivo ablation experiments have been performed on pork muscle/fat and human-cancer xenografted nude mouse, respectively. Temperature rise to over 46 °C has been achieved using only 1.2 W of on-board source power.
Keywords :
bioMEMS; fats; hyperthermia; microwave heating; muscle; MEMS technology; Microelectromechanical Systems; form factor; high power amplifier; human cancer xenografted nude mouse; low power microwave hyperthermia; micromachined silicon applicator; miniaturized microwave ablation system; monolithic microwave integrated circuits; pork fat; pork muscle; power 1.2 W; power monitoring; thermal ablation system; voltage controlled oscillator; Applicators; Electromagnetic heating; Hyperthermia; Microwave amplifiers; Muscles; Silicon; Active applicator; hyperthermia; microelectromechanical systems (MEMS); planar coaxial; stacked FET;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Microwave Symposium Digest (IMS), 2013 IEEE MTT-S International
Conference_Location :
Seattle, WA
ISSN :
0149-645X
Print_ISBN :
978-1-4673-6177-4
Type :
conf
DOI :
10.1109/MWSYM.2013.6697743
Filename :
6697743
Link To Document :
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