Patent ID: 10429460

Abstract:
A radio frequency (RF) antenna device (140) provides magnetic resonance (MR) information from an examination space (116) of a MR imaging system (110). At least one RF coil (142) with at least one connection port (144) receives an analog MR information signal and at least one analog-to-digital converter (ADC) (150) converts the analog MR information signal into a digital MR information signal with a sampling frequency which is below the Nyquist frequency of an RF carrier signal. The at least one ADC (150) is a RF band-pass sub-sampled sigma-delta analog-to-digital converter. The RF coil and the components into the RF antenna device are integrated to provide the MR information signal as a digital signal. The digital MR information signal can easily be further processed and transmitted, even in the presence of strong magnetic and RF fields.