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Superconducting multiplexer filter bank for a frequency-selective power limiter



Eduard Rocas, Alberto Padilla, Jordi Mateu, Juan C. Collado Gomez, James C. Booth, Juan M. O'Callaghan


This work proposes a superconducting multiplexer filter bank configuration to be used as a frequency-selective power limiter. The proposed configuration limits narrowband high power signals without degrading the signal performance in the remainder frequency bands. To do that we quantify the limiting power of superconducting filters implemented by means of half-wavelength transmission line resonators. The limiting power is obtained as a function of the resonator geometry, filter bandwidth and filter order. Practical issues occurring in superconducting filters operating at high power, such as the reduction of the quality factors and detuning, are also analyzed and shown not to affect the aim of the overall multiplexer power limiter performance.
IEEE Transactions on Applied Superconductivity


Limiter, filter, filter bank, multiplexer, critical current


Rocas, E. , Padilla, A. , Mateu, J. , Collado, J. , Booth, J. and O'Callaghan, J. (2010), Superconducting multiplexer filter bank for a frequency-selective power limiter, IEEE Transactions on Applied Superconductivity, [online], (Accessed July 19, 2024)


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Created December 23, 2010, Updated November 10, 2018