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Updated: Aug 11, 2026
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Clinical Imaging of Microwave Mammography
Published on: November 14, 2025
Antenna design for microwave hepatic ablation using an axisymmetric electromagnetic model
John M Bertram1, Deshan Yang, Mark C Converse
1Biomedical Engineering, University of Wisconsin, Madison, WI 53706 USA. jmbertram@gmail.com
Biomedical Engineering Online
|March 1, 2006
Summary
Researchers used the finite element method (FEM) to design microwave ablation (MWA) antennas for liver tumors. Accurate simulations are crucial for effective treatment, requiring attention to boundary conditions and tissue properties.
Area of Science:
- Medical Engineering
- Biomedical Imaging
- Electromagnetics
Background:
- Microwave ablation (MWA) is used for treating deep-seated hepatic tumors.
- Effective MWA requires antennas that generate localized specific absorption rate (SAR) patterns.
- Antennas must also be efficient radiators at approved generator frequencies.
Purpose of the Study:
- To demonstrate techniques for designing effective hepatic MWA antennas.
- To highlight the importance of simulation accuracy in antenna design.
Main Methods:
- An axisymmetric finite element method (FEM) model was utilized.
- FEMLABtrade mark 3.0 software was employed for design and implementation.
- A double slot choked antenna was designed as an example.
Main Results:
- The study successfully designed and implemented a double slot choked antenna for hepatic MWA.
- The FEM model demonstrated key techniques for antenna design.
Conclusions:
- Simulation accuracy is paramount for effective hepatic MWA antenna design.
- Factors influencing simulation accuracy include boundary conditions, liver tissue dielectric properties, and mesh resolution.
