Abstract
This paper introduces a modification of a coaxial interstitial monopole antenna for microwave hepatic cancer ablation. The proposed antenna achieves heating pattern look like a sphere at operating frequency of 5.8 GHz which is suitable for the hepatic tumors shaped The proposed coaxial antenna is loaded with higher dielectric constant material at the tip to act as an intermediate stage between the dielectric constant of the coaxial antenna and that of the liver tissue. This improves the impedance matching between the antenna and the liver tissues which in turn improves the matching between the antenna and generator. The dielectric constants of the antenna, the tip and the liver tissue are 2.03, 11 and 43.03, respectively. The antenna is simulated using COMSOL multiphysics simulator inside a modeled liver tissues cylinder at insertion depth of 50 mm for 10 minutes. The antenna has wider heating area than the conventional monopole. The simulation results show our proposed antenna has good performance.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
