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A general electromagnetic simulation tool to predict the microwave nonlinear response of planar, arbitrarily-shaped HTS structures
Parrón Granados, Josep; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; Rius Casals, Juan Manuel; Duffo Ubeda, Núria; O'Callaghan Castellà, Juan Manuel
Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. ANTENNALAB - Grup d'Antenes i Sistemes Radio
This work describes a simulation tool being developed at UPC to predict the microwave nonlinear behavior of planar superconducting structures with very few restrictions on the geometry of the planar layout. The software is intended to be applicable to most structures used in planar HTS circuits, including line, patch, and quasi-lumped microstrip resonators. The tool combines Method of Moments (MoM) algorithms for general electromagnetic simulation with Harmonic Balance algorithms to take into account the nonlinearities in the HTS material. The Method of Moments code is based on discretization of the Electric Field Integral Equation in Rao, Wilton and Glisson Basis Functions. The multilayer dyadic Green's function is used with Sommerfeld integral formulation. The Harmonic Balance algorithm has been adapted to this application where the nonlinearity is distributed and where compatibility with the MoM algorithm is required. Tests of the algorithm in TM010 disk resonators agree with closed-form equations for both the fundamental and third-order intermodulation currents. Simulations of hairpin resonators show good qualitative agreement with previously published results, but it is found that a finer meshing would be necessary to get correct quantitative results. Possible improvements are suggested
Peer Reviewed
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica
Microwave devices
Superconductors
Integral equations
Wave guides
Basis functions
Disk resonator
Electric field integral equations
Electromagnetic simulation
Green's functions methods
Hairpin resonator
Harmonic balance algorithm
High-temperature superdonductors
Intermodulation current
Line resonator
Method of moments algorithm
Microstrip resonators
Microwave nonlinear characteristics
Multilayer dyadic Green function
Numerical discretization
Patch resonator
Planat HTS circuit
Quasi-lumped microstrip resonator
Sommerfeld integral
Superconducting microwave devices
Superconducting resonators
Superconducting structure
MoM
Microones -- Dispositius
Superconductors a altes temperatures
Equacions integrals
Ones -- Guies
Article
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
         

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