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Novel monolithic phase shifter combining ferroelectrics and high temperature superconductors
Author(s) -
Jackson Charles M.,
Kobayashi June H.,
Lee Alfred,
PettietteHall Claire,
Burch John F.,
Hu Roger,
Hilton Rick,
McDade Jim
Publication year - 1992
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.4650051406
Subject(s) - phase shift module , ferroelectricity , materials science , superconductivity , dielectric , high temperature superconductivity , optoelectronics , phase (matter) , wavelength , compatibility (geochemistry) , condensed matter physics , dielectric loss , insertion loss , composite material , physics , quantum mechanics
We describe a monolithic phase shifter which combines the low loss of high‐temperature superconductivity (HTS) with the variable dielectric properties of a ferroelectric material SrTiO 3 . Phase shifts greater than 28 degrees per wavelength were observed around 30° K. The compatibility of YBa 2 Cu 3 O 7‐x and other ferroelectric materials is discussed. © 1992 John Wiley & Sons, Inc.