Low-loss microwave ferrite phase shifters with superconducting circuits

17 December 2002

conference paper
Published by Institute of Electrical and Electronics Engineers (IEEE)

No. 0149645X,p. 101-103
https://doi.org/10.1109/mwsym.1994.335259

Abstract

Microwave devices comprising magnetized ferrite in contact with superconductor circuits designed to eliminate magnetic field invasion of the superconductor have demonstrated phase shift without significant conduction losses. The device structures are adaptable to low- or high-T/sub c/ superconductors. A non-optimized design of a ferrite phase shifter that employs a niobium meanderline has produced over 1000 deg of differential phase shift with a figure of merit exceeding 1000 deg/dB at X band.

Keywords

This publication has 6 references indexed in Scilit:

DC magnetic field dependence of the surface impedance in superconducting parallel plate transmission line resonators
IEEE Transactions on Applied Superconductivity, 1993
Superconducting nonreciprocal devices for microwave systems
IEEE Microwave and Guided Wave Letters, 1992
High Temperature Superconductors in High Frequency Fields—Fundamentals and Applications
Published by Springer Nature ,1992
Planar Meanderline Ferrite-Dielectric Phase Shifter
IEEE Transactions on Microwave Theory and Techniques, 1981
Integrated Ferrimagnetic Devices
Published by Elsevier ,1974
Thin Ferrite Devices for Microwave Integrated Circuits
IEEE Journal of Solid-State Circuits, 1968