Development and microwave analysis of slot antennas for localized hyperthermia treatment of hepatocellular liver tumor

T. Zafar; J. Zafar; H. Zafar

doi:10.1007/s13246-014-0300-y

Development and microwave analysis of slot antennas for localized hyperthermia treatment of hepatocellular liver tumor

T. Zafar, J. Zafar, H. Zafar

Medicine

Government College University Lahore

Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review

7 Citations (Scopus)

Abstract

Slot antennas are often considered as a suitable choice for microwave ablation due to design simplicity, low cost to manufacture and a highly confined temperature profile. In this paper, an iterative coupled thermal/microwave numerical formulation is presented to analyze and develop miniature slot antenna geometries for localized liver cancer treatment. The thermal solver determines the specific absorption rate (SAR) as a pre-processing step to determine the temperature distribution profile within malignant tissues. The microwave solver uses this computed thermal solution together with related boundary/sub-domain settings to determine complex propagation wave number as an Eigen value. The desired microwave response in terms of insertion loss <0.1 dB, VSWR 1:1.1, and return loss less than −22 dB was achieved at 2.45 GHz. The simulated results agree well with the measured response.

Original language	English
Pages (from-to)	673-679
Number of pages	7
Journal	Australasian Physical and Engineering Sciences in Medicine
Volume	37
Issue number	4
DOIs	https://doi.org/10.1007/s13246-014-0300-y
Publication status	Published - Dec 2014

Keywords

Blood perfusion
Insertion loss
Microwave functional
Return loss
Tissue properties

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1007/s13246-014-0300-y

Cite this

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title = "Development and microwave analysis of slot antennas for localized hyperthermia treatment of hepatocellular liver tumor",

abstract = "Slot antennas are often considered as a suitable choice for microwave ablation due to design simplicity, low cost to manufacture and a highly confined temperature profile. In this paper, an iterative coupled thermal/microwave numerical formulation is presented to analyze and develop miniature slot antenna geometries for localized liver cancer treatment. The thermal solver determines the specific absorption rate (SAR) as a pre-processing step to determine the temperature distribution profile within malignant tissues. The microwave solver uses this computed thermal solution together with related boundary/sub-domain settings to determine complex propagation wave number as an Eigen value. The desired microwave response in terms of insertion loss <0.1 dB, VSWR 1:1.1, and return loss less than −22 dB was achieved at 2.45 GHz. The simulated results agree well with the measured response.",

keywords = "Blood perfusion, Insertion loss, Microwave functional, Return loss, Tissue properties",

author = "T. Zafar and J. Zafar and H. Zafar",

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T1 - Development and microwave analysis of slot antennas for localized hyperthermia treatment of hepatocellular liver tumor

AU - Zafar, T.

AU - Zafar, J.

AU - Zafar, H.

PY - 2014/12

Y1 - 2014/12

N2 - Slot antennas are often considered as a suitable choice for microwave ablation due to design simplicity, low cost to manufacture and a highly confined temperature profile. In this paper, an iterative coupled thermal/microwave numerical formulation is presented to analyze and develop miniature slot antenna geometries for localized liver cancer treatment. The thermal solver determines the specific absorption rate (SAR) as a pre-processing step to determine the temperature distribution profile within malignant tissues. The microwave solver uses this computed thermal solution together with related boundary/sub-domain settings to determine complex propagation wave number as an Eigen value. The desired microwave response in terms of insertion loss <0.1 dB, VSWR 1:1.1, and return loss less than −22 dB was achieved at 2.45 GHz. The simulated results agree well with the measured response.

AB - Slot antennas are often considered as a suitable choice for microwave ablation due to design simplicity, low cost to manufacture and a highly confined temperature profile. In this paper, an iterative coupled thermal/microwave numerical formulation is presented to analyze and develop miniature slot antenna geometries for localized liver cancer treatment. The thermal solver determines the specific absorption rate (SAR) as a pre-processing step to determine the temperature distribution profile within malignant tissues. The microwave solver uses this computed thermal solution together with related boundary/sub-domain settings to determine complex propagation wave number as an Eigen value. The desired microwave response in terms of insertion loss <0.1 dB, VSWR 1:1.1, and return loss less than −22 dB was achieved at 2.45 GHz. The simulated results agree well with the measured response.

KW - Blood perfusion

KW - Insertion loss

KW - Microwave functional

KW - Return loss

KW - Tissue properties

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DO - 10.1007/s13246-014-0300-y

M3 - Article

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VL - 37

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EP - 679

JO - Australasian Physical and Engineering Sciences in Medicine

JF - Australasian Physical and Engineering Sciences in Medicine

IS - 4

ER -

Development and microwave analysis of slot antennas for localized hyperthermia treatment of hepatocellular liver tumor

Abstract

Keywords

UN SDGs

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