Trade-off between power consumption and receive signal strength for inductively coupled transmit-receive circuits in MPI

The signal chain of a Magnetic Particle Imaging system can be designed to include a dedicated receive-only coil or to combine transmit and receive coils. More common are circuits with separate transmit and receive chains, using dedicated receive coil(s) that cancel the excitation feedthrough. However, combined transmit-receive systems may prove to have several benefits, such as reducing the system complexity, providing a lower resistive noise contribution due to larger copper cross-section, facilitating a transition from 1D to multidimensional signal generation and acquisition, and implementing an embedded band-stop filter. In this theoretical work, a matching condition that governs inductors for resonant combined transmit-receive systems is investigated. To tap the signal, a compromise between the obtained signal strength and power consumption is considered, caused by the chosen circuit topology, that balances both signal loss and power consumption at a −3 dB benchmark.

DDC Class

610: Medicine, Health

620: Engineering

Publication version

publishedVersion

Lizenz

https://creativecommons.org/licenses/by/4.0/

Name

IJMPI-Vol10-Iss1Suppl1-665.pdf

Type

Main Article

Size

475.83 KB

Format

Adobe PDF

Options

Trade-off between power consumption and receive signal strength for inductively coupled transmit-receive circuits in MPI