Method for communicating a magnetic resonance signal, and reception arrangement and magnetic resonance system operable in accord therewith

A reception arrangement for receiving a magnetic resonance signal, comprising:

• a magnetic resonance reception antenna that receives a magnetic resonance signal at a magnetic resonance frequency;
• a parametric up-converter, having non-linear reactance, connected to said magnetic resonance reception antenna that receives said magnetic resonance signal at said magnetic resonance frequency from said magnetic resonance reception antenna without amplification;
• an auxiliary reception antenna which receives auxiliary energy at an auxiliary frequency, said auxiliary reception antenna being connected to said non-linear reactance and supplying a signal representing said auxiliary energy at said auxiliary frequency to said non-linear reactance;
• said parametric up-converter, by means of said non-linear reactance, amplifying and mixing said signal representing said auxiliary energy and said magnetic resonance signal to form a mixed signal having a mixed frequency equal to a sum of said magnetic resonance frequency and said auxiliary frequency;
• and
• a mixed signal transmission antenna connected to said parametric up-converter and supplied with said mixed signal at said mixed signal frequency without amplification between said parametric up-converter and said mixed signal transmission antenna, said mixed signal transmission antenna emitting said mixed signal.

A magnetic resonance system comprising:

• a magnetic resonance reception antenna that receives a magnetic resonance signal at a magnetic resonance frequency;
• an auxiliary transmission antenna that emits auxiliary energy at an auxiliary frequency;
• an up-converter, having a non-linear reactance, connected to said magnetic resonance reception antenna that receives said magnetic resonance signal at said magnetic resonance frequency from said magnetic resonance reception antenna without amplification;
• an auxiliary reception antenna which receives said auxiliary energy at said auxiliary frequency, said auxiliary reception antenna being connected to said up-converter and supplying a signal representing said auxiliary energy at said auxiliary frequency to said up-converter without amplification;
• said up-converter by means of said non-linear reactance, amplifying and mixing said signal representing said auxiliary energy and said magnetic resonance signal to form a mixed signal having a mixed frequency equal to a sum of said magnetic resonance frequency and said auxiliary frequency;
• a mixed signal transmission antenna connected to said up-converter and supplied with said mixed signal at said mixed signal frequency without amplification between said up-converter and said mixed signal transmission antenna, and said mixed signal transmission antenna emitting said mixed signal;
• a mixed signal reception antenna which receives at least a part of said mixed signal;
• and
• an evaluation device connected to said mixed signal reception antenna supplied with a part of the mixed signal received by the mixed signal reception antenna, said evaluation device evaluating said part of said mixed signal.