Theory of intermodulation in a superconducting microstrip resonator

Dahm T, Scalapino DJ (1997)
Journal of Applied Physics 81(4): 2002-2009.

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The penetration depth and surface resistance of a superconductor depend upon the superfluid current density. This dependence gives rise to nonlinear mixing in a superconducting microstrip resonator. Here we discuss the problem of intermodulation in which two signals at omega(1) and omega(2), laying within the pass band of a microstrip cavity resonance, mix and generate a signal at 2 omega(1)-omega(2). An expression relating the power generated at 2 omega(1)-omega(2) to the power transmitted at omega(1) and omega(2) is given. We focus on the high-T-c superconductors where it is believed that the order parameter has d(x2-y2) symmetry. We find for a resonator with a large unloaded Q that intermodulation arises dominantly from the reactive nonlinear inductance of the superconducting film. (C) 1997 American Institure of Physics.
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Dahm T, Scalapino DJ. Theory of intermodulation in a superconducting microstrip resonator. Journal of Applied Physics. 1997;81(4):2002-2009.
Dahm, T., & Scalapino, D. J. (1997). Theory of intermodulation in a superconducting microstrip resonator. Journal of Applied Physics, 81(4), 2002-2009.
Dahm, T., and Scalapino, D. J. (1997). Theory of intermodulation in a superconducting microstrip resonator. Journal of Applied Physics 81, 2002-2009.
Dahm, T., & Scalapino, D.J., 1997. Theory of intermodulation in a superconducting microstrip resonator. Journal of Applied Physics, 81(4), p 2002-2009.
T. Dahm and D.J. Scalapino, “Theory of intermodulation in a superconducting microstrip resonator”, Journal of Applied Physics, vol. 81, 1997, pp. 2002-2009.
Dahm, T., Scalapino, D.J.: Theory of intermodulation in a superconducting microstrip resonator. Journal of Applied Physics. 81, 2002-2009 (1997).
Dahm, Thomas, and Scalapino, DJ. “Theory of intermodulation in a superconducting microstrip resonator”. Journal of Applied Physics 81.4 (1997): 2002-2009.
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