Design of a Compact Reactive Loaded Miniaturized Catheter Antenna for Microwave Ablation in Deep Tissue Environment

Ganguly, D and Das, S and Sarkar, D and Saha, C and Siddiqui, JY and Antar, Y (2022) Design of a Compact Reactive Loaded Miniaturized Catheter Antenna for Microwave Ablation in Deep Tissue Environment. In: 2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2022, 10 - 15 July 2022, Denver, pp. 111-112.

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Abstract

A passive reactive loaded catheter antenna working at 0.8 GHz with peak gain 1.65dBi is designed for microwave ablation application in deep tissue environment. The proposed structure is 61 miniaturized with respect to an equivalent unloaded quarter wavelength monopole designed to work at the same frequency. The input impedance of the proposed catheter antenna can be practically engineered using series L-C loading in order to achieve good impedance matching at a desired miniaturization level with respect to an arbitrary source impedance without the need for external matching networks. The proposed catheter structure exhibits 38.7 dBm radiated power at around 0.8 GHz when inserted in deep tissue environment with 40dBm (10 W) of input CW power.

Item Type:	Conference Paper
Publication:	2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2022 - Proceedings
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to Institute of Electrical and Electronics Engineers Inc.
Keywords:	Ablation; Microwave antennas; Tissue, Impedance matchings; Input impedance; Matching networks; Microwave ablation; Miniaturisation; Peak gain; Power; Quarter-wavelength; Radiated power; Source impedance, Catheters
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	04 Nov 2022 10:12
Last Modified:	04 Nov 2022 10:12
URI:	https://eprints.iisc.ac.in/id/eprint/77787

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