Extrinsic loss mechanisms in BST for tunable RF/microwave passive components

E. K. Akdoĝan; Jeffrey Bellotti; A. Safari

Extrinsic loss mechanisms in BST for tunable RF/microwave passive components

E. K. Akdoĝan, Jeffrey Bellotti, A. Safari

School of Engineering, Materials Science & Engineering

Research output: Contribution to conference › Paper › peer-review

10 Scopus citations

Abstract

Dielectric properties of (Ba_1-x,Sr_x)TiO₃ of x=0.35-0.55 were studied in the frequency range 1-3 GHz. Samples sintered at 1350°C for 3 hours in oxygen exhibited permittivity values > 400 along with ∼3% loss at >1 GHz. Air sintered samples had higher loss (∼5%) and lower permittivity. This peculiar behavior of paraelectric BST is discussed within the framework of the model proposed by Vendik et al. [1]. Extended sintering times (∼6 hours) were found to promote lower losses (∼0.4%) and it can be attributed to higher chemical homogeneity and larger grain size.

Original language	English (US)
Pages	191-194
Number of pages	4
State	Published - 2000
Event	12th IEEE International Symposium on Applications of Ferroelectrics - Honolulu, HI, United States Duration: Jul 21 2000 → Aug 2 2000

Other

Other	12th IEEE International Symposium on Applications of Ferroelectrics
Country/Territory	United States
City	Honolulu, HI
Period	7/21/00 → 8/2/00

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

Cite this

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title = "Extrinsic loss mechanisms in BST for tunable RF/microwave passive components",

abstract = "Dielectric properties of (Ba1-x,Srx)TiO3 of x=0.35-0.55 were studied in the frequency range 1-3 GHz. Samples sintered at 1350°C for 3 hours in oxygen exhibited permittivity values > 400 along with ∼3% loss at >1 GHz. Air sintered samples had higher loss (∼5%) and lower permittivity. This peculiar behavior of paraelectric BST is discussed within the framework of the model proposed by Vendik et al. [1]. Extended sintering times (∼6 hours) were found to promote lower losses (∼0.4%) and it can be attributed to higher chemical homogeneity and larger grain size.",

author = "Akdoĝan, {E. K.} and Jeffrey Bellotti and A. Safari",

year = "2000",

language = "English (US)",

pages = "191--194",

note = "12th IEEE International Symposium on Applications of Ferroelectrics ; Conference date: 21-07-2000 Through 02-08-2000",

}

TY - CONF

T1 - Extrinsic loss mechanisms in BST for tunable RF/microwave passive components

AU - Akdoĝan, E. K.

AU - Bellotti, Jeffrey

AU - Safari, A.

PY - 2000

Y1 - 2000

N2 - Dielectric properties of (Ba1-x,Srx)TiO3 of x=0.35-0.55 were studied in the frequency range 1-3 GHz. Samples sintered at 1350°C for 3 hours in oxygen exhibited permittivity values > 400 along with ∼3% loss at >1 GHz. Air sintered samples had higher loss (∼5%) and lower permittivity. This peculiar behavior of paraelectric BST is discussed within the framework of the model proposed by Vendik et al. [1]. Extended sintering times (∼6 hours) were found to promote lower losses (∼0.4%) and it can be attributed to higher chemical homogeneity and larger grain size.

AB - Dielectric properties of (Ba1-x,Srx)TiO3 of x=0.35-0.55 were studied in the frequency range 1-3 GHz. Samples sintered at 1350°C for 3 hours in oxygen exhibited permittivity values > 400 along with ∼3% loss at >1 GHz. Air sintered samples had higher loss (∼5%) and lower permittivity. This peculiar behavior of paraelectric BST is discussed within the framework of the model proposed by Vendik et al. [1]. Extended sintering times (∼6 hours) were found to promote lower losses (∼0.4%) and it can be attributed to higher chemical homogeneity and larger grain size.

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M3 - Paper

AN - SCOPUS:0034471901

SP - 191

EP - 194

T2 - 12th IEEE International Symposium on Applications of Ferroelectrics

Y2 - 21 July 2000 through 2 August 2000

ER -

Extrinsic loss mechanisms in BST for tunable RF/microwave passive components

Abstract

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All Science Journal Classification (ASJC) codes

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