Abstract
MgF 2 ceramics have been prepared via the standard solid-state reaction method, and their microwave dielectric properties are reported for the first time. The permittivity ( ε r ) and quality factor ( Qf ) of MgF 2 ceramics are closely related to porosity and lattice energy, respectively. The optimum microwave dielectric properties ( ε r = 4.67, Qf = 92,233 GHz, and τ f = −67.1 ppm/°C) are obtained when sintered at 1100 °C. The ultra-low permittivity and high Qf value distinguish MgF 2 ceramic as a perfect substitute for the commonly used polymer-based FR4 epoxy in the coming 5G/6G era. The feasibility of using MgF 2 ceramics as antenna substrates is demonstrated by fabricating an X-band microstrip patch antenna. The MgF 2 -based antenna resonating at 8.25 GHz exhibits excellent antenna performance with a return loss (S 11 ) of −23.39 dB and impedance bandwidth of 318 MHz.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
