Antenna-based solutions for RF probes in ultra high field magnetic resonance imaging scanners

Document Type

Article

Publication Date

12-2018

Department

Department of Electrical and Computer Engineering

Abstract

Various approaches to designing unconventional antenna-based RF probes for obtaining homogeneous 600 MHz B1 magnetic field in 14 T MRI scanners are investigated. Proposed solutions include microstrip patch antennas with engineered multidielectric substrates, acting as surface coils, and systems of vis-à-vis placed patch antennas to be used as volume coils with essentially increased Q-factors compared to those of birdcage coils. Various options of controlling magnetic near fields in antenna systems with flat, cylindrical and cosine-shaped substrates, as well as with tapered patch electrodes, are demonstrated. Problems of fabricating unconventional microstrip patch antennas for MRI applications are also addressed.

Publisher's Statement

© 2018 Wiley Periodicals, Inc. Publisher’s version of record: https://doi.org/10.1002/mop.31432

Publication Title

Microwave and Optical Technology Letters

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