This document discusses, among other things, a system and method for a
coil having a plurality of resonant elements and an adjustable frame. A
position of at least one resonant element can be adjusted relative to at
least one other resonant element. A variable impedance is coupled to
adjacent resonant elements and the impedance varies as a function of a
separation distance. Cables are coupled to each resonant element and are
gathered at a junction in a particular manner.