[Design of an microwave applicator using for tumor in superficial layer].
OBJECTIVE
A 2.45 GHz microstrip applicator using single rectangle sheet structure is presented.


METHODS
Based on the radiant principle of microstrip antenna, the applicator's parameter is designed and the simulating model is set and optimized in HFSS.


RESULTS
Measured by network analyzer, the technical target of this applicator is complied with design demand. During irradiation experiment, based on 30 W power, 30 mm radiation distance and 15 min duration experiment condition, the thermal field distribution map of phantom is obtained from the far-infrared image instrument. The 3D map shows that the region of thermal field centre has small radius and deep heat penetration.


CONCLUSIONS
The microwave energy from this applicator can reach the tumor in superficial layer without heat injuring normal tissue around it.
Sun
Bing
B
School of Electronics and Information, Soochow University, Suzhou, 215021. sunbing@suda.edu.cn
Lu
Xiaofeng
X
Cao
Yi
Y
D004867:Equipment Design; D006979:Hyperthermia, Induced / Q000295:instrumentation* / Q000379:methods; D008872:Microwaves / Q000627:therapeutic use*; D009369:Neoplasms / Q000628:therapy*