Title :
7T MRI RF Head Coil with metamaterial elements
Author :
Panda, Vijayaraghavan ; Vaughan, J.T. ; Gopinath, Anand
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Minnesota, Minneapolis, MN, USA
Abstract :
A 7T Magnetic Resonance Imaging (MRI) RF Head Coil metamaterial element has been investigated. The element has high uniform current density, operating at 298 MHz has a three-section Stepped Impedance Resonant (SIR) structure. The high impedance section is designed with a Composite Right/Left handed (CRLH) microstrip line topology for continuous and uniform current distribution. The measurement of the proposed design shows the element resonant at 298 MHz. This is a fast wave structure and should radiate very well and this is confirmed by simulations.
Keywords :
magnetic resonance imaging; metamaterials; microstrip lines; topology; transmission lines; 7T MRI RF head coil; 7T magnetic resonance imaging RF head coil metamaterial element; CRLH microstrip line topology; composite right-left handed microstrip line topology; frequency 298 MHz; metamaterial elements; three-section stepped impedance resonant structure; Magnetic field measurement; Magnetic heads; Magnetic resonance imaging; Microstrip; Radio frequency; Resonant frequency; Composite materials; Magnetic Resonance Imaging; Metamaterial;
Conference_Titel :
Microwave Symposium (IMS), 2015 IEEE MTT-S International
Conference_Location :
Phoenix, AZ
DOI :
10.1109/MWSYM.2015.7167124
