Microwave dielectric properties of mixtures of glass-forming oxides Zn–B–Si and dielectric ceramics MgTiO3–CaTiO3 for LTCC applications

Low temperature sintering and properties of CaO–B2O3–SiO2 system glass ceramics for LTCC applications

“…Low-temperature-cofired ceramics (LTCCs) for microwave applications represent a key position in the development of future electronic products in wireless communications [1,2]. The integration of passive components in LTCC substrate corresponds to the trend of mobilization and miniaturization with high electrical performances using the best high frequency conductors such as gold, silver and copper.…”

Low temperature synthesis and characterization of nano‐crystalline Mg(Zr0.05Ti0.95)O3 ceramics

“…But the obtained quality factor was very small as compared to the MgTiO 3 ceramics prepared by solid‐state reaction method . The use of ZnO, B 2 O 3 , and SiO 2 glass for the reduction of sintering temperature were also reported . But the observed dielectric constant and quality factor values were degraded due to high dissipation factor.…”

Low-temperature sintered Zn2SiO4–CaTiO3 ceramics with near-zero temperature coefficient of resonant frequency

“…Low-temperature co-fired ceramics (LTCC) have been widely investigated as a means of miniaturizing microwave devices. For practical application in microwave dielectric materials as substrates or patch antennas in LTCC, the materials must display low permittivity, high quality factor (Q × f), a near zero temperature coefficient of resonant frequency ( f ∼ 0 ppm/ • C) and a low-firing temperature (<961 • C, the melting temperature of Ag electrode) [1][2][3][4][5][6][7][8]. Most commercial LTCC materials have relative permittivity less than 10 and the lowest loss tangent values close to 0.0002 at microwave frequencies.…”