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Magnetic resonance scanner with wireless transmission of upconverted signals and received sidebands occurring outside of the industrial, scientific, and medical (ISM) band
Magnetic resonance scanner with wireless transmission of upconverted signals and received sidebands occurring outside of the industrial, scientific, and medical (ISM) band
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机译:磁共振扫描仪,具有无线传输上变频信号和工业,科学和医学(ISM)频段以外的接收边带的功能
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摘要
A wireless magnetic resonance imaging scanner has one or more local coils, a microwave antenna array, and a local oscillator, and an upconverter. The local oscillator signal from the local oscillator is transmitted from the microwave antenna array to illuminate the local coils. The local coils generate magnetic resonance signals at a first frequency and the magnetic resonance signals at the first frequency are upconverted in the upconverter to microwave frequencies. The local oscillator operates at a frequency within an unlicensed band, chosen such that desired sidebands for reception of the upconverted local coil magnetic resonance signals fall outside the unlicensed band.
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