Microwave Filter Application of Inductively Coupled Superconducting Striplines

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

doi:10.1109/77.233503

Microwave Filter Application of Inductively Coupled Superconducting Striplines

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

Superconductive Systems Engineering Laboratory

Research output: Contribution to journal › Letter › peer-review

1 Citation (Scopus)

Abstract

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 language	English
Pages (from-to)	2788-2791
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	3
Issue number	1
DOIs	https://doi.org/10.1109/77.233503
Publication status	Published - Mar 1993

All Science Journal Classification (ASJC) codes

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

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abstract = "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.",

author = "K. Yoshida and K. Kudo and Hossain, {Md S.} and K. Watanabe and K. Enpuku and K. Yamafuji",

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T1 - Microwave Filter Application of Inductively Coupled Superconducting Striplines

AU - Yoshida, K.

AU - Kudo, K.

AU - Hossain, Md S.

AU - Watanabe, K.

AU - Enpuku, K.

AU - Yamafuji, K.

PY - 1993/3

Y1 - 1993/3

N2 - 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.

AB - 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.

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