Low-temperature sintered SrCo1.5Ti1.5Fe9O19 ferrite for high-frequency antenna application

SrCo
_1.5
Ti
_1.5
Fe
₉
O
₁₉
hexagonal ferrite powder was synthesized by solid state reaction route. The X-ray diffraction analysis confirmed the formation of pure hexagonal ferrite phase at 1200
^°
C. The effects of B
₂
O
₃
sintering additive on the sintering behavior at 900
^°
C and the properties of the ferrite have been investigated. There was very little densification at 900
^°
C in the case of pure ferrite, while ferrite containing 5 wt% B
₂
O
₃
additive showed denser microstructure and increased grain growth. Both permittivity and permeability were enhanced in 5 wt% B
₂
O
₃
added ferrite due to better densification. These results indicate that B
₂
O
₃
is a good sintering additive and can be applicable in the low-temperature co-fired ceramics (LTCC) multilayer device technology. A ferrite antenna based on low temperature sintered SrCo
_1.5
Ti
_1.5
Fe
₉
O
₁₉
ferrite material is proposed for thehigh-frequency application. Antenna parameters such as resonant frequency, return loss, voltage standing wave ratio (VSWR), and gain were simulated and reported.