Low-loss microwave dielectrics using rock salt oxide Li2MgTiO4

Tseng, Yu Wei; Chen, Jhih Yong; Kuo, Yuan Cheng; Huang, Cheng Liang

doi:10.1016/j.jallcom.2011.06.010

Cited by 65 publications

(26 citation statements)

References 14 publications

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“…Demand for low loss microwave ceramic components has been dramatically increasing in recent years and the rapid growth of wireless communication industry has further led to extensive research and development in the area of microwave dielectrics [1][2][3][4][5][6]. In addition to the need for new dielectric materials, it is also desirable to promote the dielectric properties of currently available materials through appropriate modifications [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Low-loss microwave dielectric ceramics in the (Co1−xZnx)TiO3 (x=0–0.1) system

Huang

2012

Journal of Alloys and Compounds

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Section: Introductionmentioning

confidence: 99%

Low-loss microwave dielectric ceramics in the (Co1−xZnx)TiO3 (x=0–0.1) system

Huang

2012

Journal of Alloys and Compounds

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“…Densification of the ceramics plays an important role in controlling the dielectric loss, and same phenomenon has been shown for other microwave dielectric materials [15,16]. However, it has reported that density has little effect on the Q 9 f when relative density is above [17]. Therefore, it may be extrinsic effect on the microwave dielectric loss.…”

Section: Methodsmentioning

confidence: 62%

A novel low-loss spinel microwave dielectric ceramic CoZnTiO4

Lyu

Sun

et al. 2015

J Mater Sci: Mater Electron

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Spinel CoZnTiO 4 ceramics were synthesized by conventional solid-state method and their microwave dielectric properties were investigated. The crystal structure and microstructures of specimens were studied by XRD and SEM. The CoZnTiO 4 phase forms at a temperatures ranging from 1140 to 1220°C and the dependence of the dielectric properties of the ceramics on the sintering condition is found to be insignificant. The relative densities of the specimens are higher than 95 % for the entire temperature range tested during the experiment. Specimen using CoZnTiO 4 sintered at 1200°C possesses a combination of dielectric properties with e r * 17.31, Q 9 f * 97,571 GHz (where f = 8.84 GHz, is the resonant frequency) and s f * -36.4 ppm/°C, which makes it a suitable candidate material for microwave devices.

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“…The advantages of microwave dielectric ceramics that have high Qf value with moderate dielectric constant characteristics and good thermal stability at high frequencies are utilized [4,5]. To meet the specifications of current and future systems, improved or new microwave dielectric materials based on the above-mentioned properties are investigated [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

A new microwave dielectric material ZnZr0.8Sn0.2Nb2O8

et al. 2015

J Mater Sci: Mater Electron

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A novel low-loss microwave dielectric material ZnZr 0.8 Sn 0.2 Nb 2 O 8 was reported for the first time. The samples were prepared by the conventional solid-state reaction route and sintered in the temperature range of 1225-1325°C for 6 h. Single phase ZnZr 0.8 Sn 0.2 Nb 2 O 8 was obtained and it showed monoclinic structure. The microstructure and microwave dielectric properties were investigated systematically. The variation trend of dielectric constant (e r ) was in accordance with variation trend of relative density. The Qf value mainly depended on the crystal structure and it increased with the increasing packing fraction. The temperature coefficient of resonant frequency (s f ) correlated with the variation of bond valence of B-site. The excellent microwave dielectric properties of e r = 27.37, Q 9 f = 76,814 GHz (where f = 7 GHz), and s f = -55.09 9 10 -6 /°C were obtained for ZnZr 0.8 Sn 0.2 Nb 2 O 8 ceramics sintered at 1275°C for 6 h.

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Low-loss microwave dielectrics using rock salt oxide Li2MgTiO4

Cited by 65 publications

References 14 publications

Low-loss microwave dielectric ceramics in the (Co1−xZnx)TiO3 (x=0–0.1) system

Low-loss microwave dielectric ceramics in the (Co1−xZnx)TiO3 (x=0–0.1) system

A novel low-loss spinel microwave dielectric ceramic CoZnTiO4

A new microwave dielectric material ZnZr0.8Sn0.2Nb2O8

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