English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
Add to Basket
  Local TagsRelease HistoryDetailsSummary

Released
Poster

Capacitively Tunable Patch Antenna for Human Head Imaging at 9.4 Tesla

MPS-Authors
/persons/resource/persons83973

Hoffmann,  J
Former Department MRZ, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

/persons/resource/persons84213

Shajan,  G
Former Department MRZ, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

/persons/resource/persons84145

Pohmann,  R
Former Department MRZ, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

External Resource

https://cds.ismrm.org/protected/10MProceedings/files/1_program.htm
(Publisher version)

Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
Supplementary Material (public)
There is no public supplementary material available
Citation

Hoffmann, J., Shajan, G., & Pohmann, R. (2010). Capacitively Tunable Patch Antenna for Human Head Imaging at 9.4 Tesla. Poster presented at ISMRM-ESMRMB Joint Annual Meeting 2010, Stockholm, Sweden.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-C066-3
Abstract
Microstrip patch antennas, recently used for “traveling-wave” excitation at high field strengths, provide a fairly homogeneous excitation pattern in the human head but have high power demands especially when the Larmor frequency is near or below the cutoff frequency of the waveguide. In this work, we present a capacitively tunable patch antenna that can be brought in close proximity to the subject in order to improve efficiency. We demonstrate the image homogeneity in the human head at 9.4 Tesla as well as a simulation-based evaluation of the antenna’s efficiency and SAR depending on the distance to the subject.