Microwave Filter Application of Inductively Coupled Superconducting Striplines

K. Yoshida, K. Kudo, Md S. Hossain, K. Watanabe, K. Enpuku, K. Yamafuji

Research output: Contribution to journalLetter

1 Citation (Scopus)


A design theory is presented to apply inductively coupled superconducting striplines to microwave filters, in which we regard the coupled stripline system as a four port circuitry. By obtaining eigen values for impedance, admittance and scattering matrices, we obtained general formulas for designing bandpass filters. The microwave filters using this coupling scheme are simple in designing and have advantages of capability of external modulation. Experiments to demonstrate the validity of this coupling scheme have been made in the frequency range between dc and 300GHz by investigating the coupling between a Josephson oscillator and an external stripline.

Original languageEnglish
Pages (from-to)2788-2791
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Issue number1
Publication statusPublished - Mar 1993


All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Yoshida, K., Kudo, K., Hossain, M. S., Watanabe, K., Enpuku, K., & Yamafuji, K. (1993). Microwave Filter Application of Inductively Coupled Superconducting Striplines. IEEE Transactions on Applied Superconductivity, 3(1), 2788-2791. https://doi.org/10.1109/77.233503