SHIH-HUNG LIN2026-10-162026-10-162015-11-01Pure ID: 15391682Pure UUID: 7d761eba-7372-45ac-88cf-2718d211eefd10.2109/jcersj2.123.1027https://www.scopus.com/pages/publications/84946739839https://scholars.csmu.edu.tw/handle/123456789/30970The effects of the substitution of Mn2+ at Mg2+ sites on the structural characteristics and microwave dielectric properties of (Mg1-xMnx)2(Ti0.95Sn0.05)O4 (x = 0.010.009) ceramics were investigated. Second phase of (Mg1-xMnx)2(Ti0.95Sn0.05)O3 was observed. The sintering characteristics of (Mg1-xMnx)2(Ti0.95Sn0.05)O4 ceramics are developed by the X-ray diffraction patterns and SEM observations to find the influence of sintering temperatures and Sn4+ content on the crystal structure and the grain growth. The influence Mn2+ content and sintering temperatures on the quality values (Q × f ) and the temperature coefficient of resonant frequency (τf values) of (Mg1-xMnx)2(Ti0.95Sn0.05)O4 ceramics at microwave frequency are well developed in this study. As an optimal compose, (Mg1-xMnx)2(Ti0.95Sn0.05)O4 (x = 0.05) successfully demonstrated a dielectric constant of 14.21, a Q × f of 347,000 GHz and a temperature coefficient of resonent frequency value of -57.94ppm/°C sintering at 1325°C.5enjournal article