Title :
A nonlinear transmission line model for superconducting stripline resonators
Author :
Oates, J.H. ; Shin, R.T. ; Oates, D.E. ; Tsuk, M.J. ; Nguyen, P.P.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., MIT, Cambridge, MA, USA
fDate :
3/1/1993 12:00:00 AM
Abstract :
A nonlinear transmission line model is used to explain the nonlinear frequency response at high input power levels of stripline resonators fabricated with superconducting NbN and YBa/sub 2/Cu/sub 3/O/sub 7-x/ thin films. The resonator is modeled as a transmission line with a nonlinear inductance and resistance. The inductor flux and resistor voltage drop are assumed to be odd polynomial functions of the transmission line current, and the polynomial coefficients are adjusted to match the measured data. Excellent agreement is found between the measured and calculated results.<>
Keywords :
barium compounds; high-temperature superconductors; niobium compounds; resonators; strip line components; superconducting microwave devices; superconducting thin films; transmission line theory; yttrium compounds; NbN; YBa/sub 2/Cu/sub 3/O/sub 7-x/; high input power levels; nonlinear frequency response; nonlinear inductance; nonlinear transmission line model; odd polynomial functions; polynomial coefficients; resistance; superconducting stripline resonators; thin films; transmission line current; Electrical resistance measurement; Frequency response; Inductance; Polynomials; Power transmission lines; Stripline; Superconducting thin films; Superconducting transmission lines; Thin film inductors; Transmission line measurements;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
