Miniaturization of superconducting passive filters for on-chip applications
Conference contribution, 2007

We present techniques to miniaturize superconducting ultra narrowband filters for on-chip applications. The filters are designed for 2 GHz, 5 GHz and 10 GHz operating frequencies. The expected bandwidths of the designed filters are 2-20 MHz. The designs are of 7 stages Chebyshev filters having maximum passband ripples of 0.5 dB. On-chip filters are particularly interesting as they are applicable for monolithic design with the RSFQ circuit aiming qubit applications. One of the designs is a quasi-lumped filter where the effective wave propagation constant has been increased by the addition of lumped components to the superconducting microstrip line (SMSL). Additionally, this design provides the optimum width of an SMSL without violating design rules. The other design consists of distributed and lumped components. The area of the filter is in the range of 1-2 square mm. We present the filter topologies and corresponding experimental results for the frequency response of these on-chip filters designed for Hypres 4.5 kA/cm2 fabrication process.

Author

Raihan Rafique

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Peter Linner

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

Bahar M. Motlagh

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

Biddut Kumar Banik

Chalmers, Applied Physics, Physical Electronics

Thomas Ohki

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Anna Yurievna Herr

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

11th International Superconducting Electronics Conference, Washington DC, USA, June 10-14, 2007.

Vol. 11 P-V09

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Other Engineering and Technologies

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Created

10/6/2017