Superconducting multiplexer filter bank for a frequency-selective power limiter

Published

December 23, 2010

Author(s)

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

Abstract

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.

Citation

IEEE Transactions on Applied Superconductivity

Volume

21

Issue

3

Pub Type

Journals

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DOI Link

Keywords

Limiter, filter, filter bank, multiplexer, critical current

Citation

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], https://doi.org/10.1109/TASC.2010.2093554 (Accessed October 9, 2025)