Layered Al2O3-TiO2 composite dielectric resonators

被引：39

作者：

Breeze, J ^{[1
]}

Penn, SJ ^{[1
]}

Poole, M ^{[1
]}

Alford, NM ^{[1
]}

机构：

[1] S Bank Univ, Sch Elect Elect & Informat Engn, Ctr Phys Elect & Mat, London SE1 0AA, England

来源：

ELECTRONICS LETTERS | 2000年 / 36卷 / 10期

关键词：

D O I：

10.1049/el:20000678

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Aluminium oxide displays a very low tan delta at microwave frequencies. It also possesses a remarkably high thermal conductivity, ideal for heat dissipation in high power satellite filters. However, its temperature coefficient of the resonant frequency (tau(f)) is approximately -60ppm/K. It is shown that the application of a film of titanium oxide which has a tau(f) of opposite sign (450ppm/K) produces a composite in which the tau(f) can be tuned to be zero over a wide temperature range. The tan delta of the composite at zero tau(f) is 3.3 x 10(-5) (Q = 30000) at room temperature and at 10GHz.

引用

页码：883 / 884

页数：2

共 12 条

[1] Sintered alumina with low dielectric loss [J].

Alford, NM ;

Penn, SJ .

JOURNAL OF APPLIED PHYSICS, 1996, 80 (10) :5895-5898

[2]

ALFORD NM, 1995, Patent No. 9815548

[3]

ALFORD NM, 1995, Patent No. 9815549

[4]

Alford NMN, 1998, GROWTH AND PROCESSING OF ELECTRONIC MATERIALS, P117

[5] Temperature compensated cryogenic whispering gallery mode resonator for microwave frequency standard applications [J].

Hao, L ;

Klein, N ;

Gallop, JC ;

Radcliffe, WJ ;

Ghosh, IS .

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 1999, 48 (02) :524-527

[6]

Kajfez D., 1986, DIELECTRIC RESONATOR

[7]

KOMATSU Y, 1981, IEEE T MICROW THEORY, P313

[8] The design of a temperature-stable stepped-impedance resonator using composite ceramic materials [J].

Lim, SK ;

Lee, HY ;

Kim, JC ;

An, C .

IEEE MICROWAVE AND GUIDED WAVE LETTERS, 1999, 9 (04) :143-144

[9]

Penn SJ, 1997, J AM CERAM SOC, V80, P1885, DOI 10.1111/j.1151-2916.1997.tb03066.x

[10] Dielectric frequency-temperature-compensated microwave whispering-gallery-mode resonators [J].

Tobar, ME ;

Krupka, J ;

Ivanov, EN ;

Woode, RA .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1997, 30 (19) :2770-2775

← 1 2 →