Abstract
The noise figure of a matching network between a receive coil and a preamplifier with low input impedance can be estimated using relationship F ≈ 1 + R11/RC. It is demonstrated how to use this relationship to choose optimal matching-decoupling network topology in terms of signal-to noise ratio (SNR). The formula serves as an efficient tool to estimate noise figure of matching networks and is useful in low-field and high-coil-Q applications, where the noise of the matching network becomes comparable to coil noise.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 2023 ISMRM |
| Number of pages | 3 |
| Volume | 31 |
| Publisher | The International Society for Magnetic Resonance in Medicine |
| Publication date | 2023 |
| Article number | 3905 |
| Publication status | Published - 2023 |
| Event | 2023 ISMRM & ISMRT Annual Meeting & Exhibition - Metro Toronto Convention Centre (MTCC), Toronto, Canada Duration: 3 Jun 2023 → 8 Jun 2023 Conference number: 32 |
Conference
| Conference | 2023 ISMRM & ISMRT Annual Meeting & Exhibition |
|---|---|
| Number | 32 |
| Location | Metro Toronto Convention Centre (MTCC) |
| Country/Territory | Canada |
| City | Toronto |
| Period | 03/06/2023 → 08/06/2023 |
| Series | International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition. Proceedings |
|---|---|
| ISSN | 1524-6965 |
Keywords
- RF Arrays & Systems
- Matching