High-Q and temperature-stable microwave dielectrics in layer cofired Zn1.01 Nb2 O6 /TiO2 /Zn1.01 Nb2 O6 ceramic architectures

2018 ◽  
Vol 102 (1) ◽  
pp. 342-350 ◽  
Author(s):  
Jie Zhang ◽  
Yu Luo ◽  
Zhenxing Yue ◽  
Longtu Li
Keyword(s):  
Microwave Dielectrics ◽  
High Q

High-Q microwave dielectrics in the (Mg1−xZnx)Al2O4 (x=0–0.1) system

2011 ◽  
Vol 509 (9) ◽  
pp. L150-L152 ◽  
Author(s):  
Cheng-Liang Huang ◽  
Yu-Hua Chien ◽  
Chen-Yi Tai ◽  
Chi-Yuen Huang
Keyword(s):  
Microwave Dielectrics ◽  
High Q

Ba4LiNb3−xTaxO12(x=0-3): A Series of High-Q Microwave Dielectrics from the Twinned 8H Hexagonal Perovskites

2010 ◽  
Author(s):  
Liang Fang ◽  
Chunchun Li ◽  
Xiyang Peng ◽  
Changzheng Hu ◽  
Bolin Wu ◽  
...  
Keyword(s):  
Microwave Dielectrics ◽  
High Q ◽  
Hexagonal Perovskites

ChemInform Abstract: High-Q Microwave Dielectrics in the (Mg1-xZnx)Al2O4 (x = 0-0.1) System.

ChemInform ◽  
2011 ◽  
Vol 42 (14) ◽  
pp. no-no
Author(s):  
Cheng-Liang Huang ◽  
Yu-Hua Chien ◽  
Chen-Yi Tai ◽  
Chi-Yuen Huang
Keyword(s):  
Microwave Dielectrics ◽  
High Q

High- Q microwave dielectrics in wolframite magnesium zirconium tantalate ceramics

2016 ◽  
Vol 42 (1) ◽  
pp. 2036-2040 ◽  
Author(s):  
Xiao-Song Lyu ◽  
Ling-Xia Li ◽  
Hao Sun ◽  
Shuai Zhang ◽  
Sai Li
Keyword(s):  
Microwave Dielectrics ◽  
High Q

High-Q microwave dielectrics in low-temperature sintered (Zn1−xNix)3Nb2O8 ceramics

2014 ◽  
Vol 34 (2) ◽  
pp. 277-284 ◽  
Author(s):  
Cheng-Liang Huang ◽  
Wen-Ruei Yang ◽  
Pei-Ching Yu
Keyword(s):  
Low Temperature ◽  
Microwave Dielectrics ◽  
High Q

SEM determination of optimum processing conditions for microwave dielectrics in the (Ca,Sr,Ba) zirconate system

1987 ◽  
Vol 45 ◽  
pp. 372-373
Author(s):  
B.P. Borglum ◽  
R.C. Buchanan
Keyword(s):  
Solution Technique ◽  
Microwave Dielectrics ◽  
Preparation Methods ◽  
High Q ◽  
Low Dielectric ◽  
Microwave Components ◽  
Final Microstructure ◽  
Ceramic Components ◽  
High Dielectric

Ceramic components for microwave applications, such as dielectric resonators, typically must possess low dielectric loss (high Q), high dielectric constant (εr) and small temperature coefficient of permittivity (τε). Non-stoichiometric CaZrO3 doped with Sr and Ba has been shown to possess these necessary characteristics Compact and highly reliable microwave components can, therefore, be fabricated using these materials. In this study, the effect of heat-treatment on the final microstructure was investigated.A chemical solution technique was used to synthesize powders of the composition Ca0.965(Sr0.030Ba0.005)Zr0.990O4 Chemical preparation methods offer the advantages of precise stoichiometric control, atomistic homogeneity, high purity, and fine particle size of the resultant powders. Appropriate amounts of the nitrate salts in aqueous solution were mixed to prepare the desired composition. The solution was converted to a powder by evaporation and calcined at 600°C and 800°C for 2 hours.

High-Q microwave dielectrics in the (Mg1−xZnx)4Ta2O9 ceramics

2014 ◽  
Vol 590 ◽  
pp. 494-499 ◽  
Author(s):  
Cheng-Liang Huang ◽  
Chao-Hsien Chu ◽  
Fan-Shuo Liu ◽  
Pei-Ching Yu
Keyword(s):  
Microwave Dielectrics ◽  
High Q

High-Q Microwave Dielectrics in the (Mg1−xCox)2TiO4Ceramics

2009 ◽  
Vol 92 (2) ◽  
pp. 379-383 ◽  
Author(s):  
Cheng-Liang Huang ◽  
Jhih-Yong Chen
Keyword(s):  
Microwave Dielectrics ◽  
High Q

Microwave Materials with High Q and Low Dielectric Constant for Wireless Communications.

2004 ◽  
Vol 833 ◽  
Author(s):  
Hitoshi Ohsato
Keyword(s):  
Solid Solution ◽  
Dielectric Constant ◽  
Low Dielectric Constant ◽  
Solution Composition ◽  
Microwave Dielectrics ◽  
Solid Solution Composition ◽  
High Q ◽  
Low Dielectric ◽  
Phase Group ◽  
Microwave Materials

ABSTRACTMicrowave dielectrics with high Q and low εr are expected for millimeterwave applications. In this paper the preparation and properties of some candidates for microwave dielectrics such as forsterite, willemite, alumina, corundum-type compounds, green phase of Y2BaCuO5 are presented. High purity forsterite has low εr of 7.0 high Q·f of 270000 GHz and τf of -65ppm/°C. Willemite also has low εr of 6.5, and high Q·f of 160000 GHz. Alumina has ultra high Q·f of 680000GHz with εr of 10.05, and τf of -60 ppm/°C. Mg4(Nb2-x Tax)O9 which belongs to corundum group has εr of 11.5, Q·f of 350000 GHz, and τf of -70ppm/°C. Y2Ba(Cu1/4Zn3/4)O5 which belongs to green phase group has εr of 15.4, Q·f of 220000 GHz. The τf’s of these materials, which are an important property for millimeterwave applications, have been adjusted to zero ppm/°C by the addition of rutile, or adjustment of solid solution composition.

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