Conference paper
Microstrip Resonator for High Field MRI with Capacitor-Segmented Strip and Ground Plane
Department of Electrical Engineering, Technical University of Denmark1
Center for Magnetic Resonance, Department of Electrical Engineering, Technical University of Denmark2
Electromagnetic Systems, Department of Electrical Engineering, Technical University of Denmark3
Center for Hyperpolarization in Magnetic Resonance, Centers, Technical University of Denmark4
Copenhagen University Hospital Herlev and Gentofte5
High field MRI coils are often based on transmission line resonators. Due to relatively short wavelength of RF fields, such coils produce uneven field patterns. Here we show, that it is possible to manipulate magnetic field patterns of microstrip resonators in both planes (sagittal and transverse) segmenting stripe and ground plane of the resonator with series capacitors.
The design equations for capacitors providing symmetric current distribution are derived. The performance of two types of segmented resonators are investigated experimentally. To authors’ knowledge, a microstrip resonator, where both, strip and ground plane are capacitor-segmented, is shown here for the first time.
| Language: | English |
|---|---|
| Publisher: | The International Society for Magnetic Resonance in Medicine |
| Year: | 2017 |
| Proceedings: | ISMRM 25th Annual Meeting & Exhibition |
| Types: | Conference paper |
| ORCIDs: | Zhurbenko, Vitaliy and Petersen, Esben Thade |
