Title :
Metamaterial applicator for microwave hyperthermia
Author :
Velazquez-Ahumada, Maria C. ; Freire, Manuel J. ; Marques, Ricardo
Author_Institution :
Fac. of Phys., Dept. of Electron. & Electromagn., Univ. of Seville, Seville, Spain
Abstract :
In this work, it is studied the application in hyperthermia of a microwave focusing device based on meta-materials. The device consists of a planar array of split-ring resonators placed between two parallel metallic plates and it is fed by a small loop antenna which excites the split-rings. The device is modelled as an homogeneous uniaxial slab of negative permeability placed between two metallic plates. Both the fields and the temperature distribution in model of breast tissue and a tumor are numerically obtained. The field produced by the fabricated device inside a phantom resembling the breast tissue was measured with a probe to check the theoretical predictions.
Keywords :
biomedical equipment; biomedical measurement; hyperthermia; loop antennas; metamaterial antennas; metamaterials; permeability; phantoms; radiation therapy; resonators; slabs; tumours; breast tissue; homogeneous uniaxial slab; metallic plates; metamaterial applicator; microwave focusing device; microwave hyperthermia; negative permeability; phantom; small loop antenna; split-ring resonators; temperature distribution; tumor; Breast tissue; Hyperthermia; Metamaterials; Microwave theory and techniques; Phantoms; Slabs; Tumors;
Conference_Titel :
General Assembly and Scientific Symposium, 2011 XXXth URSI
Conference_Location :
Istanbul
Print_ISBN :
978-1-4244-5117-3
DOI :
10.1109/URSIGASS.2011.6050641
