Exploration of MgTiO₃-CaTiO₃ Ceramic-Based Dielectric Resonator Antenna for Sub-6 GHz 5G Communication Application

Abstract

There has been extensive research on microwave dielectric materials considering their applications in 5G communication technologies. In this work, the microwave dielectric performances of 0.95MgTiO3-0.05CaTiO3 (MCT) ceramic for sub-6 GHz frequency 5G application have been reported.The solid-state reaction technique was used to develop the MCT ceramic. The structural as well as dielectric properties of MCT were systematicallyexamined.X-ray diffraction was used to examine the crystalline phase of the MCT sample. The microwave dielectric properties, including relative permittivity, temperature coefficient of resonant frequency, and quality factorof MCT were measured. Using MCT ceramic as the resonator, a dielectric resonator antenna has been simulated using HFSS software, which realizes that the S11 curve is in good accordance and that efficiency is high at 5.22 GHz. The extraordinary performances indicate that MCT ceramic is a potential candidate for 5G application.

Microwave dielectric properties of V2O5/CeO2 doped (Mg0.95Ca0.05)TiO3‐MgO and their application to a dielectric filter

“…12,13 To adjust its τ f value to approximately zero, CaTiO 3 (which has a dielectric constant of 170 and Q×f of 3600 GHz at 7 GHz) is employed as a compensator as it has a large positive τ f value (+ 800 ppm/ • C). 14 A previous study reported that 95MCT, which has a MgTiO 3 :CaTiO 3 ratio of 95:5, shows excellent dielectric properties: a dielectric constant of 18−20, a Q×f of 50,000-60,000 at 7 GHz, and a τ f of −6 to −8 ppm/ • C. 15,16 The 95MCT ceramics have been widely used in devices such as temperature compensation-type capacitors and patch antennas. However, without any additives, 95MCT ceramics exhibit a densification temperature up to 1400-1500 • C. 17 A high densification temperature significantly affects the product cost and practical applications of the product.…”