Patent ID: 7193419

Claim:
A detuning circuit unit configured for a plurality of antennas of a magnetic resonance apparatus, comprising: at least two identical detuning modules each having connectors respectively configured for connection to a different one of said antennas in said plurality of antennas of said magnetic resonance apparatus; said detuning modules being connected together in a cascade circuit allowing simultaneous activation of all of said detuning modules with a single control signal from a control signal source, with one of said detuning modules in said cascade circuit forming a last detuning module of said cascade circuit, each of said detuning modules comprising an RF switch operable by said single control signal, said single control signal causing the respective RF switches of the respective detuning modules to be connected in series in order to place said cascade circuit in a first operating state, and said single control signal causing the respective RF switches to be connected in parallel in order to place said cascade circuit in a second operating state; and a circuit component terminating said last detuning module.