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Title: (YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}},Au)/SrTiO{sub 3}/LaAlO{sub 3} thin film conductor/ferroelectric coupled microstripline phase shifters for phased array applications

Abstract

We report on the design, fabrication, and testing of novel YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}}/SrTiO{sub 3}/LaAlO{sub 3} (YBCO/STO/LAO) and Au/SrTiO{sub 3}/LaAlO{sub 3} (Au/STO/LAO) coupled microstrip line phase shifters (CMPS). These CMPS were tested at frequencies within the Ku and K bands (12{endash}20 GHz), at temperatures from 24 to 77 K, and at dc voltages (V{sub dc}) from zero to 350 V. A relative insertion phase shift ({Delta}{phi}) of 390{degree} was measured for an eight-element YBCO/STO/LAO CMPS at V{sub dc}=350V, 16 GHz, and 40 K. At 77 K, a {Delta}{phi}{approximately}260{degree} was obtained for the CMPS at the same bias and frequency. Both results correspond to an effective coupling length of 0.33 cm. At both temperatures, the phase shifter exhibits a figure of merit of {approximately}30{degree}/dB. To our knowledge, these are the best results published so far at these frequencies where miniaturization, insertion loss, and phase delay are key considerations. {copyright} {ital 1997 American Institute of Physics.}

Authors:
; ; ; ;  [1]; ; ; ;  [2]
  1. National Aeronautics and Space Administration, Lewis Research Center, Cleveland, Ohio 44135 (United States)
  2. SCT, Golden, Colorado 80401 (United States)
Publication Date:
OSTI Identifier:
552935
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 71; Journal Issue: 21; Other Information: PBD: Nov 1997
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; 36 MATERIALS SCIENCE; SUPERCONDUCTING DEVICES; MICROWAVE POWER TRANSMISSION; HIGH-TC SUPERCONDUCTORS; PHASE SHIFT; LANTHANUM COMPOUNDS; STRONTIUM COMPOUNDS; GOLD; YTTRIUM COMPOUNDS; BARIUM COMPOUNDS; SUPERCONDUCTING FILMS; YTTRIUM OXIDES; BARIUM OXIDES; COPPER OXIDES; STRONTIUM OXIDES; TITANIUM OXIDES; LANTHANUM OXIDES; FERROELECTRIC MATERIALS; TEMPERATURE DEPENDENCE; GHZ RANGE 01-100

Citation Formats

Van Keuls, F.W., Romanofsky, R.R., Bohman, D.Y., Winters, M.D., Miranda, F.A., Mueller, C.H., Treece, R.E., Rivkin, T.V., and Galt, D. (YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}},Au)/SrTiO{sub 3}/LaAlO{sub 3} thin film conductor/ferroelectric coupled microstripline phase shifters for phased array applications. United States: N. p., 1997. Web. doi:10.1063/1.120251.
Van Keuls, F.W., Romanofsky, R.R., Bohman, D.Y., Winters, M.D., Miranda, F.A., Mueller, C.H., Treece, R.E., Rivkin, T.V., & Galt, D. (YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}},Au)/SrTiO{sub 3}/LaAlO{sub 3} thin film conductor/ferroelectric coupled microstripline phase shifters for phased array applications. United States. doi:10.1063/1.120251.
Van Keuls, F.W., Romanofsky, R.R., Bohman, D.Y., Winters, M.D., Miranda, F.A., Mueller, C.H., Treece, R.E., Rivkin, T.V., and Galt, D. Sat . "(YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}},Au)/SrTiO{sub 3}/LaAlO{sub 3} thin film conductor/ferroelectric coupled microstripline phase shifters for phased array applications". United States. doi:10.1063/1.120251.
@article{osti_552935,
title = {(YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}},Au)/SrTiO{sub 3}/LaAlO{sub 3} thin film conductor/ferroelectric coupled microstripline phase shifters for phased array applications},
author = {Van Keuls, F.W. and Romanofsky, R.R. and Bohman, D.Y. and Winters, M.D. and Miranda, F.A. and Mueller, C.H. and Treece, R.E. and Rivkin, T.V. and Galt, D.},
abstractNote = {We report on the design, fabrication, and testing of novel YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}}/SrTiO{sub 3}/LaAlO{sub 3} (YBCO/STO/LAO) and Au/SrTiO{sub 3}/LaAlO{sub 3} (Au/STO/LAO) coupled microstrip line phase shifters (CMPS). These CMPS were tested at frequencies within the Ku and K bands (12{endash}20 GHz), at temperatures from 24 to 77 K, and at dc voltages (V{sub dc}) from zero to 350 V. A relative insertion phase shift ({Delta}{phi}) of 390{degree} was measured for an eight-element YBCO/STO/LAO CMPS at V{sub dc}=350V, 16 GHz, and 40 K. At 77 K, a {Delta}{phi}{approximately}260{degree} was obtained for the CMPS at the same bias and frequency. Both results correspond to an effective coupling length of 0.33 cm. At both temperatures, the phase shifter exhibits a figure of merit of {approximately}30{degree}/dB. To our knowledge, these are the best results published so far at these frequencies where miniaturization, insertion loss, and phase delay are key considerations. {copyright} {ital 1997 American Institute of Physics.}},
doi = {10.1063/1.120251},
journal = {Applied Physics Letters},
number = 21,
volume = 71,
place = {United States},
year = {Sat Nov 01 00:00:00 EST 1997},
month = {Sat Nov 01 00:00:00 EST 1997}
}