脉冲EPR光谱仪中射频线圈减振开关电路

2015 IEEE MTT-S International Microwave and RF Conference (IMaRC) Pub Date : 2015-12-01 DOI:10.1109/IMARC.2015.7411364

P. Duraiswamy, J. Vandewege

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引用次数: 0

摘要

在本文中，我们提出了一种四二极管开关电路，以减少工作在低拉莫尔频率(265 MHz)下的脉冲EPR光谱仪的射频线圈衰蚀时间。所提出的开关可以集成在射频线圈的匹配网络中。我们表明，当输入功率为0 dBm时，射频线圈的衰荡时间减少了92%。获得了4 ns的快速开关，插入损耗为0.06 dB。在源和检测器之间实现54 dB的隔离。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Switching circuit for RF coil ring-down time reduction in pulsed EPR spectrometer

In this paper, we present a four diode switching circuit to reduce the RF coil ring-down time in pulsed EPR spectrometers operating at low Larmor frequency (265 MHz). The proposed switch can be integrated within the matching network of the RF coil. We show that the RF coil ring-down time is reduced by 92 percent with an input power of 0 dBm. A fast switching of 4 ns with an insertion loss of 0.06 dB is obtained. An isolation of 54 dB is achieved between the source and the detector.

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2015 IEEE MTT-S International Microwave and RF Conference (IMaRC)

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