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Microwave Dielectric Properties of Ti-Te system Ceramics for Triplexer Filter
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 Title & Authors
Microwave Dielectric Properties of Ti-Te system Ceramics for Triplexer Filter
Choi, Eui-Sun; Lee, Moon-Woo; Lee, Sang-Hyun; Kang, Gu-Hong; Kang, Gap-Sul; Lee, Young-Hie;
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In this study, the compositions for the microwave dielectric materials were investigated to obtain the improved dielectric properties, the high temperature stability, and the sintering temperature of less than , which was necessary for cofiring with the internal conductor of silver. In addition, the dielectric sheets were prepared by the tape casting technique, after which the sheets were laminated and sintered. In this process, the optimum ratio of powder and binder, laminating pressure, temperature, and possibility for cofiring with the internal conductor were studied. Finally, multilayer chip treplexer filter for the 800-2,000 MHz range were fabricated, and the frequency characteristics of the triplexer filter were investigated. When the ceramics were sintered at for 0.3 hours, the microwave dielectric properties of the dielectric constant of 29.91, quality factor of 33,000 GHz, and temperature coefficient of resonant frequency of -2.76 ppm/ were obtained. Using the Advanced Design System (ADS) and High Frequency Structure Simulator (HFSS), the multilayer chip triplexer filter acting at the range of 800-2,000 MHz were simulated and manufactured. The manufactured triplexer filter had the excellent frequency properties in the CDAM800, GPS and PCS frequency regions, respectively.
LTCC;Triplexer;Microwave dielectric properties;Ti-Te;
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Sotoudeh Hamedi-High, Joseph Chung, Sooseok Oh, Ju-Ung Jo, Noh-Joon Park, Dae-Hee Park, “Design of a High Performance Patch Antenna for GPS Communication Systems”, KIEE J. Electr. Eng. Technol., Vol. 4, No. 2, pp. 282-286, 2009. crossref(new window)

Y. Konish, “Novel Dielectric Waveguide Components- Microwave Applications of New Ceramic Materials”, Proc. of IEEE, 79, pp. 726-740, 1991. crossref(new window)

R. E. Mistler, D. J. Shanefield and R. B. Runk, “Tape Casting of Ceramic”, in Ceramic Processing Before firing : Edited by G. Y. Dnoda and L. L. Hench, Widly, New York, 1978.

R. D. Richtmyer, “Dielectric Resonators”, J. Appl. Phys., 10(1), pp. 391-395, 1939. crossref(new window)

H. Kagata, T. Inoue, et al., “Low-fire dielectric ceramics for multilayer microwave devices”, Jpn. Nat. Tech. Report, 40, pp. 17-22, 1994.

R. S. Roth, J. L. Waring, “Phase Equilibrium Relations In The Binary System Bismuth Sesquioxide - Niobium Pentoxide”, J. Res. Nat. Bur. Stand., 66, pp. 451-463, 1962.

S. Yamanaka, M. Miyake, “Study of the ternary Ti- Te-O system”, J. Less-Common Metall., 159, pp. 179-189, 1990. crossref(new window)

M. Udovic, M. Valant, D. Suvorov, “Dielectric characterisation of ceramics from the $TiO_{2}$-$TeO_{2}$ system”, J. Euro. Ceram. Soc., 21, pp. 1735-1738, 2001. crossref(new window)

Giovanni B. Andreozzi et al., “High-temperature electrical conductivity of FeTiO3 and ilmenite”, Journal of Materials Chem. Vol.6(6), pp. 987-991, 1996. crossref(new window)

G. Zablotny, “Improving Yields in Cofired Ceramic Packages: An Examination of Process and Equipment”, Hybrid Circuit Tech., 9, pp. 33-35, 1992.

Q. H. Yang, E. S. Kim, Y. J. Kim, “Effect of PbO-$B_{2}O_{2}$- $V_{2}O_{5}$ Glass on the Microwave Dielectric Properties of (Pb,Ca,La)(Fe,Nb)$O_{3}$ Ceramics”, Mater. Sci. & Eng. B, pp. 161-166, 2002.

B. W. Hakki and P. D. Coleman, “A Dielectric Resonator Method of Measuring Inductive Capacities in the Millimeter Range”, IRE Trans. on Microwave Theory and Technique, Vol.MTT-24, No.10, pp. 402-410, 1960.

Y. Kobayashi and M. Katoh, “Microwave Measurement of Dielectric Properties of Low-Loss Materials by the Dielectric Rod Resonator Method”, IEEE Trans. on Microwave Theory and Techniques, Vol. MTT-33, No. 7, pp. 586-592, 1985. crossref(new window)

Cheng-Liang Huang and Ming-Hung Weng, “Improved high Q value of MgTiO3-CaTiO3 microwave dielectric ceramics at low sintering temperature”, Mater. Res. Bull., 36, pp. 2741-2750, 2001. crossref(new window)

Heli Jantunen et al., “Compositions of $MgTiO_{3}$- $CaTiO_{3}$ ceramic with two borosilicate glasses for LTCC technology”, J. Euro. Ceram. Soc., 20, pp. 2331-2336, 2000. crossref(new window)

J. M. Wu, “Reaction Sequence and Effect of Calcination and Sintering on Microwave Properties of (Ba,Sr)O-$Sm_{2}O_{3}$-$TiO_{2}$ Ceramics”, J. Am. Ceram. Soc., 73, pp1599-1605, 1990. crossref(new window)

Chien-Min Cheng, Shi-Hong Lo and Cheng-Fu Yang, “The effect of CuO on the sintering and properties of $BiNbO_{4}$ microwave ceramics”, Ceram. International, 26, pp. 113-117, 2000. crossref(new window)