Microwave Phase Shifter Employing SrTiO3 Ferroelectric Varactors

A. Kozyrev; A. Ivanov; A. Prudan; O. Soldatenkov; E. Hollmann; V. Loginov; D. Ginley; T. Rivkin

doi:10.1080/10584589908215598

Microwave Phase Shifter Employing SrTiO3 Ferroelectric Varactors

A. Kozyrev, A. Ivanov, A. Prudan, O. Soldatenkov, E. Hollmann, V. Loginov, D. Ginley, T. Rivkin

Materials, Chemical, and Computational Science

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

13 Scopus Citations

Abstract

Nonlinear microwave properties of thin SrTiO₃ ferroelectric films at ambient temperatures were investigated. A tunability factor of 1.7 and loss tangent of about 0.01-0.015 were measured at frequencies of 2-10 GHz for SrTiO₃ thin film planar varactors at room temperature. The performance of an X-band microstrip phase shifter employing the SrTiO₃ planar varactors at room temperature is reported. Continuous phase shift in the range of (0-55) deg under bias voltage of 0-400 V at operating frequency band (8.6-9.0) GHz was observed. A figure of merit for the phase shifter is 110 deg/dB and the phase error is smaller than 5 deg. To our knowledge, it is the first demonstration of the microwave application of SrTiO₃ varactors operating as nonlinear elements at room temperature and a record result for figure of merit for ferroelectric phase shifters.

Original language	American English
Pages (from-to)	287-295
Number of pages	9
Journal	Integrated Ferroelectrics
Volume	24
Issue number	1
DOIs	https://doi.org/10.1080/10584589908215598 https://doi.org/10.1080/10584589908215598
State	Published - 1999
Event	The 11th International Symposium on Integrated Ferroelectrics (ISIF99) - Colorado Springs, CO, USA Duration: 7 Mar 1999 → 10 Mar 1999

NREL Publication Number

NREL/JA-520-28720

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title = "Microwave Phase Shifter Employing SrTiO3 Ferroelectric Varactors",

abstract = "Nonlinear microwave properties of thin SrTiO3 ferroelectric films at ambient temperatures were investigated. A tunability factor of 1.7 and loss tangent of about 0.01-0.015 were measured at frequencies of 2-10 GHz for SrTiO3 thin film planar varactors at room temperature. The performance of an X-band microstrip phase shifter employing the SrTiO3 planar varactors at room temperature is reported. Continuous phase shift in the range of (0-55) deg under bias voltage of 0-400 V at operating frequency band (8.6-9.0) GHz was observed. A figure of merit for the phase shifter is 110 deg/dB and the phase error is smaller than 5 deg. To our knowledge, it is the first demonstration of the microwave application of SrTiO3 varactors operating as nonlinear elements at room temperature and a record result for figure of merit for ferroelectric phase shifters.",

author = "A. Kozyrev and A. Ivanov and A. Prudan and O. Soldatenkov and E. Hollmann and V. Loginov and D. Ginley and T. Rivkin",

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T1 - Microwave Phase Shifter Employing SrTiO3 Ferroelectric Varactors

AU - Kozyrev, A.

AU - Ivanov, A.

AU - Prudan, A.

AU - Soldatenkov, O.

AU - Hollmann, E.

AU - Loginov, V.

AU - Ginley, D.

AU - Rivkin, T.

PY - 1999

Y1 - 1999

N2 - Nonlinear microwave properties of thin SrTiO3 ferroelectric films at ambient temperatures were investigated. A tunability factor of 1.7 and loss tangent of about 0.01-0.015 were measured at frequencies of 2-10 GHz for SrTiO3 thin film planar varactors at room temperature. The performance of an X-band microstrip phase shifter employing the SrTiO3 planar varactors at room temperature is reported. Continuous phase shift in the range of (0-55) deg under bias voltage of 0-400 V at operating frequency band (8.6-9.0) GHz was observed. A figure of merit for the phase shifter is 110 deg/dB and the phase error is smaller than 5 deg. To our knowledge, it is the first demonstration of the microwave application of SrTiO3 varactors operating as nonlinear elements at room temperature and a record result for figure of merit for ferroelectric phase shifters.

AB - Nonlinear microwave properties of thin SrTiO3 ferroelectric films at ambient temperatures were investigated. A tunability factor of 1.7 and loss tangent of about 0.01-0.015 were measured at frequencies of 2-10 GHz for SrTiO3 thin film planar varactors at room temperature. The performance of an X-band microstrip phase shifter employing the SrTiO3 planar varactors at room temperature is reported. Continuous phase shift in the range of (0-55) deg under bias voltage of 0-400 V at operating frequency band (8.6-9.0) GHz was observed. A figure of merit for the phase shifter is 110 deg/dB and the phase error is smaller than 5 deg. To our knowledge, it is the first demonstration of the microwave application of SrTiO3 varactors operating as nonlinear elements at room temperature and a record result for figure of merit for ferroelectric phase shifters.

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T2 - The 11th International Symposium on Integrated Ferroelectrics (ISIF99)

Y2 - 7 March 1999 through 10 March 1999

ER -

Microwave Phase Shifter Employing SrTiO3 Ferroelectric Varactors

Abstract

NREL Publication Number

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