Abstract
In this work, we developed and tested a multi-channel radio frequency (RF) transmission system with compact metal-oxide semiconductor field effect transistor (MOSFET) amplifiers for parallel excitation in 7 T animal MRI scanner. The system is composed of a multi-channel RF controller and four independent RF power amplifiers. Each power amplifier contains two amplification stages. The design was validated by simulation and bench test. The power gain for the amplifier is 18.7 dB at 300 MHz, demonstrating the sufficient amplification capability of the transmission system for small animal parallel excitation applications at 7 T. This compact RF power amplifier can be potentially used for on-coil amplification in multichannel RF array system.
| Original language | English |
|---|---|
| Pages (from-to) | 191-200 |
| Number of pages | 10 |
| Journal | Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering |
| Volume | 45 |
| Issue number | 4 |
| DOIs | |
| State | Published - Oct 2015 |
Keywords
- MOSFET
- Multi-channel transmission system
- Parallel excitation
- Power amplifiers
- Radio frequency (RF)
Fingerprint
Dive into the research topics of 'Practical design of multi-channel MOSFET RF transmission system for 7 T animal MR imaging'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver