A single-chip dual-mode CW/pulse electron paramagnetic resonance spectrometer in 0.13μm SiGe BiCMOS
A single-chip dual-mode CW/pulse electron paramagnetic resonance spectrometer in 0.13μm SiGe BiCMOS
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0.13μm SiGe BiCMOS 的单芯片双模式连续波/脉冲电子顺磁共振波谱仪
DOI：
10.1109/mwsym.2013.6697718
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
A. Babakhani
中科院分区：
文献类型：
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作者：
Xuebei Yang;P. Seifi;A. Babakhani
采用0.13μ mSiGeBiCMOS工艺实现了用于电子顺磁共振（EPR）谱的微波电路。该芯片可以工作在连续波（CW）和脉冲模式。频率在770 ~ 970 MHz范围内可调，对应的塞曼磁场范围为28 ~ 35 mT，获得了DPPH粉末样品的CW-EPR吸收谱线。该芯片由VCO、PA、LNA、下变频混频器、基带放大器和脉冲发生模块组成。
Microwave circuitry for electron paramagnetic resonance (EPR) spectroscopy is implemented in a 0.13μm SiGe BiCMOS process. The chip can operate in both continuous wave (CW) and pulse modes. The frequency is tunable from 770MHz to 970MHz, corresponding to Zeeman magnetic fields from 28mT to 35mT for a free electron. The CW-EPR absorption line of a DPPH powder sample is acquired. The chip consists of a VCO, a PA, an LNA, a down-conversion mixer, baseband amplifiers, and a pulse generation block.