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  1. low loss highpass filter with novel caxial cable inductors

    Article • International Journal of Microwave and Wireless Technologies, July 2017, Cambridge University Press

    hongfei liu

  2. Ultra-low loss lumped element cryogenic coolable high pass filter and cryogenic measurement method

    Article • Microwave and Optical Technology Letters, June 2017, Wiley

    hongfei liu

  3. High linearity, low noise, L-band cryogenic amplifier for radio astronomical receivers

    Article • Microwave and Optical Technology Letters, January 2017, Wiley

    hongfei liu