Microstrip superconducting quantum interference device radio-frequency amplifier: Scattering parameters and input coupling
نویسندگان
چکیده
منابع مشابه
Microstrip superconducting quantum interference device radio-frequency amplifier: Effects of negative feedback on input impedance
We present the results of measurements of the scattering parameters of microstrip amplifiers MSAs based on the dc superconducting quantum interference device. The amplifier input impedance is poorly matched to typical transmission line impedances, resulting in high input return loss around 2 dB. We show that negative feedback can lower the MSA input impedance to achieve a robust match to 50 . I...
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ژورنال
عنوان ژورنال: Applied Physics Letters
سال: 2008
ISSN: 0003-6951,1077-3118
DOI: 10.1063/1.2902173