Slot antenna for microwave ablation

By Mark Zuckerberg

Jul 22, 2016 · The Microwave Ablation Antenna works at 2.45GHz and also has a good impedance matching. This kind of Microwave Ablation Antenna can solve the specific shape of the tumor and to realize a large ablation pattern, meanwhile our design has lesser damage to body (for the outer radius of the coaxial-slot antenna is less than 4mm).

A coaxial-slot antenna for invasive microwave Invasive microwave radiative antenna is different from other antennas which are utilized on the humanbody’s superficial surface.In order to investigate the distribution of thermal field and optimum antennal pattern in invasive microwave thermal therapy better, the invasive coaxial- slot antenna in... Asymmetry structure antenna for | MICROWAVE ABLATION… Microwave ablation therapy. Sarawut Maneejamrat , Pattarapong Phasukkit+,Petch Nantivatana, Supan Tungjitkusolmun and Manas Sangworasilp.Treatment of hepatic cancer often requires removal or destruction. Using coaxial- slot antenna is opened slot at one-side of antenna. A Novel Microwave Coaxial Slot Antenna for Liver Tumor … P. Prakash, Theoretical Modeling for Hepatic Microwave Ablation, The Open Biomedical Engineering Journal, Vol. 4, 27-38, 2010. K. Saito, Y. Hayashi, H. Yoshimura, K. Ito, Heating characteristics of array applicator composed of two coaxial- slot antennas for microwave coagulation therapy, IEEE... A Novel Microwave Coaxial Slot Antenna for Liver Tumor …

This paper presents analysis of non-asymmetry antenna configuration for microwave ablation at 2450 MHz using three-dimensional finite element analyses. Treatment of hepatic cancer often requires removal or destruction. Using coaxial-slot antenna is opened slot at one-side of antenna. We study the characteristics of

MULTIPLE ANTENNA MICROWAVE ABLATION: IMPACT OF NON ... MULTIPLE ANTENNA MICROWAVE ABLATION: IMPACT OF NON-PARALLEL ANTENNA INSERTION by ... Dual antenna ablation at 2.45 GHz for Dual Slot Antennas: Converging and Diverging Configurations ... During microwave ablation, an antenna is inserted under image guidance, and radiates electromagnetic energy into ... Development and Analysis of Coaxial Slot Antenna in ... Development and Analysis of Coaxial Slot Antenna in Comparision with Coaxial Dipole Antenna for Interstitial Microwave Ablation SURITA MAINI, ANUPMA MARWAHA Electrical & Instrumentation Engineering Department, Electronics & Communication Engineering Department Sant Longowal Institute of Engineering and Technology Longowal, Sangrur INDIA

To compare the performance of a microwave antenna design with two annular slots to that of a monopole antenna design in creating a more spherical ablation zone. A dual-slot antenna comprising two coaxial, annular slots at the distal tip was recently shown to inhibit proximal electric field ...

US8511317B2 - Method for ablating body tissue - Google Patents A tissue ablation system for treating fibrillation in a patient comprises a steerable interventional catheter having an energy source that emits a beam of energy to ablate tissue thereby creating a conduction block for aberrant electrical … US4475108A - Electronically tunable microstrip antenna - Google The microstrip antenna or radiator used for microwave transmission and receiving is conventionally known in the art to comprise a planar or curved radiating element of a specific shape and size overlaying and separated from a ground plane. Levels of detail analysis of microwave scattering from human Similarly in the case of a complex location 2, the E-Norm absolute difference between both head models at the center of stroke circle was calculated as 0.04236 V/m and the same was maximum as well. 2018 IEEE International Symposium on Antennas and Propagation

while the inside of the tip of a slot antenna is still the dielectric of the coaxial cable. Like all other antennas, a slot antenna is usually sealed in its catheter to be used in MWA procedure. For frequency at 2.45 GHz, a slot antenna works very similarly to a dipole antenna having very low power reflection of -16 dB as shown in Fig. 3.

causes detrimental tissue heating along the antenna insertion region with respect to coaxial slot antenna. Key-Words: - Microwave ablation (MWA), tumor, Finite Element Method (FEM), Coaxial slot antenna, coaxial dipole antenna. 1 Introduction Hepatocellular carcinoma (HCC), or primary liver cancer, is the 6th most common cancer worldwide A Novel Microwave Coaxial Slot Antenna for Liver Tumor Ablation PDF | This paper is on the effect of a T-ring shape structure to enhance the capability of a microwave coaxial slot antenna (MCA) in the treatment of liver cancer. The MCA is composed of an ... A Hybrid Slot/Monopole Antenna With Directional Heating ... We present a new coax-fed interstitial antenna for generating directional heating patterns during microwave ablation. The antenna comprises a base-fed monopole wherein a portion of the outer ... MEASUREMENTS, ANTENNA DESIGN AND ADVANCED COMPUTER MODELING ...