DocumentCode
662288
Title
Effects of filling factor on near field transmit properties for a dual-row array at 300 MHz
Author
Kozlov, M. ; Turner, Richard
Author_Institution
Max Planck Inst. for Human Cognitive & Brain Sci., Leipzig, Germany
fYear
2013
fDate
5-8 Nov. 2013
Firstpage
420
Lastpage
422
Abstract
We evaluated the performance of purely cylindrical and conical-cylindrical non-overlapped dual-row near-field head arrays with radiative elements of axial length 70 and 80 mm. Increasing the filling factor using a conical row does not ensure an increase of the RF magnetic field averaged over the entire human brain. For the geometries, excitation conditions and volume of interest that were investigated, the conical shape resulted in an intrinsic reduction of safety excitation efficiency.
Keywords
antenna arrays; geometry; conical shape; conical-cylindrical non-overlapped dual-row near-field head arrays; excitation conditions; filling factor; frequency 300 MHz; geometries; intrinsic reduction; near field transmit properties; purely cylindrical head arrays; safety excitation efficiency; size 70 mm; size 80 mm; volume of interest; Arrays; Filling; Geometry; Magnetic fields; Magnetic heads; Optimization; Radio frequency; Antenna arrays; Biomedical imaging; Computational electromagnetics;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Conference Proceedings (APMC), 2013 Asia-Pacific
Conference_Location
Seoul
Type
conf
DOI
10.1109/APMC.2013.6695166
Filename
6695166
Link To Document