Room temperature densified H3BO3 microwave dielectric ceramics with ultra-low permittivity and high quality factor for dielectric substrate applications

2020 ◽  
Vol 46 (9) ◽  
pp. 13225-13232 ◽  
Author(s):  
Xianbing Ding ◽  
Yongjun Gu ◽  
Qian Li ◽  
Bok-hee Kim ◽  
Qifeng Wang ◽  
...  
Keyword(s):  
Quality Factor ◽  
Room Temperature ◽  
Dielectric Substrate ◽  
High Quality Factor ◽  
Microwave Dielectric Ceramics ◽  
High Quality ◽  
Microwave Dielectric ◽  
Dielectric Ceramics ◽  
Low Permittivity

High quality factor microwave dielectric ceramics in the (Mg1/3 Nb2/3 )O2 -ZrO2 -TiO2 ternary system

2017 ◽  
Vol 100 (9) ◽  
pp. 3982-3989 ◽  
Author(s):  
Wen-Bo Li ◽  
Di Zhou ◽  
Li-Xia Pang ◽  
Yan-Zhu Dai ◽  
Ze-Ming Qi ◽  
...  
Keyword(s):  
Ternary System ◽  
Quality Factor ◽  
High Quality Factor ◽  
Microwave Dielectric Ceramics ◽  
High Quality ◽  
Microwave Dielectric ◽  
Dielectric Ceramics

scholarly journals Temperature Stable, High-Quality Factor Li2TiO3-Li4NbO4F Microwave Dielectric Ceramics

Crystals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 741
Author(s):  
Shangrui Xu ◽  
Juan Jiang ◽  
Zelai Cheng ◽  
Xiangyi Chen ◽  
Shikuan Sun ◽  
...  
Keyword(s):  
Quality Factor ◽  
Microwave Dielectric Properties ◽  
Microwave Dielectric Ceramics ◽  
High Quality ◽  
Practical Applications ◽  
Microwave Dielectric ◽  
State Ceramic ◽  
Solid State Ceramic Route ◽  
Ceramic Route ◽  
Dielectric Ceramics

In this work, (1-x)Li2TiO3-xLi4NbO4F ceramics were prepared by the conventional solid-state ceramic route. With the increase of Li4NbO4F content, the phase structure transformed from ordered monoclinic to disordered cubic. By increasing Li3NbO4F content, the temperature coefficient of resonant frequency (τf) was successfully adjusted closer to zero, while the dielectric constant (εr) and microwave quality factor (Qf) decreased to some degree. Outstanding microwave dielectric properties with a εr = 18.7, Qf = 61,388 GHz (6.264 GHz), and τf = 0.9 ppm/°C were obtained for 0.9Li2TiO3-0.1Li4NbO4F ceramics sintered at 1050 °C for 2 h, which indicated that these ceramics are suitable for practical applications in the field of microwave substrates and components.

scholarly journals Room-temperature-densified H3BO3 microwave dielectric ceramics with ultra-low permittivity and ultra-high Qf value

2020 ◽  
Vol 6 (2) ◽  
pp. 233-239 ◽  
Author(s):  
Wen Bin Hong ◽  
Lei Li ◽  
Han Yan ◽  
Shu Ya Wu ◽  
Hang Sheng Yang ◽  
...  
Keyword(s):  
Room Temperature ◽  
Microwave Dielectric Ceramics ◽  
Microwave Dielectric ◽  
Dielectric Ceramics ◽  
Low Permittivity
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