Design and implementation of an improved invasive antenna for microwave hyperthermia / 中国医疗器械杂志
Chinese Journal of Medical Instrumentation
;
(6): 427-430, 2010.
Article
in Chinese
| WPRIM
| ID: wpr-330544
ABSTRACT
A new 2450MHz invasive antenna for microwave hyperthermia is designed in this paper. The finite element method is employed to simulate the choke antenna and improved choke antenna, i.e., choke-umbrella antenna. The specific absorption rates (SAR) in tumors are calculated with the two kinds of antennas. S11 of choke-umbrella antenna is also compared with that of choke antenna. Multi-layered block of tissue-equivalent phantom is heated with the fabricated invasive antenna. The distribution of the temperature field in the invasive layer as well as the three-dimensional distribution of the temperature field in phantom is obtained with an infrared thermo graphic technique. Research results show that the improved choke-umbrella antenna can generate more uniform temperature distribution and meets the requirements of the actual clinical microwave hyperthermia better.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Equipment Design
/
Hyperthermia, Induced
/
Microwaves
Language:
Chinese
Journal:
Chinese Journal of Medical Instrumentation
Year:
2010
Type:
Article
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