Abstract #4404

A Feasibility Study on Bilateral Monopole Antenna with Two Common Grounds for 7T MRI

Han-Joong Kim¹, Hyunwoo Song¹, Sang-Doc Han¹, Phil Heo¹, Donghyuk Kim², Yeonjin Choi³, and Kyoung-Nam Kim³

¹Department of Health Sciences and Technology, Gachon University, Incheon, Korea, Republic of, ²Neuroscience Research Institute, Gachon University, Incheon, Korea, Republic of, ³Department of Biomedical engineering, Gachon University, Incheon, Korea, Republic of

In this study, a bilateral monopole antenna was proposed to have ring element of existing ring-monopole as common ground and to consist of two interlocking monopole antennas along z-axis to improve lopsided |B₁| field toward the ground plate. Geometry of the proposed bilateral monopole antenna was optimized with EM simulation then optimized antenna was compared with a transceiver array coil and a birdcage coil for quality verification. Even with worse power consumption, the proposed bilateral monopole antenna can be an alternative for existing RF coils such as transceiver array coil and birdcage coil due to its improved |B₁⁺| field uniformity.

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