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Nonlinear analysis of disk resonators. Application to material characterization and filter design

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3 Author(s)
Mateu, J. ; Univ. Politecnica de Catalunya, Barcelona, Spain ; Collado, C. ; O'Callaghan, J.M.

A procedure for the numerical prediction of the microwave nonlinear behavior (intermodulation products, degradation of quality factors, etc.) of TM010 disk resonators has been developed. The procedure is based on relating a very general description of HTS nonlinearities with the circuit elements of a nonlinear radial transmission line. This radial transmission line is then analyzed using the harmonic balance algorithm. Successful cross-checks are performed by comparing simulations with theoretical results obtained for a specific model of HTS nonlinearity. The application of this procedure to the determination of nonlinear material parameters from disk resonator measurements is illustrated as well as its use for simulating filters with several inter-coupled disks

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Applied Superconductivity, IEEE Transactions on  (Volume:11 ,  Issue: 1 )