Synopsis

First, radiofrequency (RF) transmit coils excite the nuclei of an imaging sample, and then, RF receive coils detect the MRI signal from excited nuclei during their relaxation. Both transmit and receive coils could be surface or volume coils as well as single-channel or multi-channel coils. In this presentation, we briefly discuss each category. We also present some fundamental theories and insights for coil making. Eventually, some recently published works about transmit and/or receive arrays are presented.