![]() Numerical simulations demonstrate that the decoupling between elements is better than –35 dB for all the elements and the RF fields are homogeneous with deep penetration and quadrature behavior in the area of interest. Compared with conventional quadrature coils, the single-feed structure is much simple and compact, making the quadrature coil array design practical. Each array element is a nearly square ring microstrip antenna and is fed at a point on the diagonal of the antenna to generate quadrature magnetic fields. In this work, we propose, for the first time, a quadrature array design strategy for parallel transmission at 298 MHz using single-feed circularly polarized (CP) patch antenna technique. ![]() Quadrature coils are often desired in MR applications because they can improve MR sensitivity and also reduce excitation power. ![]()
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December 2022
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