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Reciprocity theorem based phased array hyperthermia applicator design
Author(s) -
Lekka Eleni A.,
Paschaloudis Konstantinos D.,
Kyriacou George A.
Publication year - 2017
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.30846
Subject(s) - phased array , reciprocity (cultural anthropology) , excitation , engineering , acoustics , electronic engineering , optics , antenna (radio) , electrical engineering , physics , psychology , social psychology
Abstract A novel method based on reciprocity theorem is elaborated for the estimation of phased array hyperthermia applicator complex excitation currents. For this purpose a detailed numerical model of the structure is constructed including all tissues and the antennas as metallic scatterers. The structure is simulated with a virtual‐test source at the tumor's center to yield the excitation currents at the port of the phased array through the corresponding scattering parameters. A simulation with these excitations verifies the focusing of electromagnetic energy over the tumor's area, which is improved by increasing the number of the array elements.