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Nonlinear response of a superconducting filter to a wide band excitation
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10.1063/1.2172067
/content/aip/journal/apl/88/6/10.1063/1.2172067
http://aip.metastore.ingenta.com/content/aip/journal/apl/88/6/10.1063/1.2172067
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Power spectral densities as a function of frequency at the input (dotted line) and output (solid lines) of a one-resonator band-reject filter relative to the input power . The excitation is a single QPSK pulse with , 15, 20, and . The small-signal resonance frequency and the carrier frequency , , , , and .

Image of FIG. 2.
FIG. 2.

Nonlinear resonance frequency of a one-resonator band-reject filter relative to the small-signal resonance frequency as a function of the signal power for a cw signal (dashed line, open circles) and a single pulse (solid line, filled circles) having a root-raised cosine shape with . Circles denote the harmonic balance results and lines are the first-order perturbation theory results. The other parameters are , , , and .

Image of FIG. 3.
FIG. 3.

Power spectral densities as a function of frequency at the input (dotted line) and output (solid lines) of an eight-resonator bandpass filter relative to the input power . The excitation is a single QPSK pulse with , 15, 20, and . The filter is a cascaded Chebyshev filter with a basspand ripple of and an equal-ripple passband of . The other parameters are , , per resonator, and .

Image of FIG. 4.
FIG. 4.

Output power spectral density per pulse relative to for an eight-resonator bandpass filter excited by a QPSK modulated WCDMA signal, for , 5, and . Dotted and solid lines denote the spectra obtained for one and 128 pulses, respectively, and the dashed line is the linear transducer gain of the filter. The filter is a cascaded Chebyshev filter with a passband ripple of and an equal-ripple passband of . The other parameters are , , per resonator, and .

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/content/aip/journal/apl/88/6/10.1063/1.2172067
2006-02-10
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Nonlinear response of a superconducting filter to a wide band excitation
http://aip.metastore.ingenta.com/content/aip/journal/apl/88/6/10.1063/1.2172067
10.1063/1.2172067
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