[1] [1] Plourde J K, Ren C L. Application of dielectric resonators in microwave components［J］.IEEE Transactions on Microwave Theory and Techniques,1981,29(8): 754-770.

[2] [2] Petzelt J, Kamba S, Kozlov G V, et al. Dielectric properties of microwave ceramics investigated by infrared and submillimetre spectroscopy［J］.Ferroelectrics,1996,176(1): 145-165.

[3] [3] Shih C F, Li W M, Tung K S, et al. Low-loss microwave dielectric material based on magnesium titanate［J］.Journal of the American Ceramic Society,2010,93(9): 2448-2451.

[4] [4] Liao Q W, Li L X, Zhang P, et al. A microwave dielectric material for microstrip patch antenna substrate［J］.Journal of Materials Research,2011,26(19): 2503-2510.

[5] [5] Chen Y B. Structural and dielectric properties of La(Mg1/2Ti1/2)O3-Ca0.6La0.8/3TiO3-doped CuO［J］.Journal of Alloys and Compounds,2009,480(2): 820-823.

[6] [6] Chen Y B. New dielectric material system of La(Mg1/2Ti1/2)O3-Ca0.6La0.8/3TiO3 for microwave applications［J］.Journal of Alloys and Compounds,2009,480(2): 265-269.

[7] [7] Croquesel J, Bouvard D, Chaix J, et al. Direct microwave sintering of pure alumina in a single mode cavity: grain size and phase transformation effects［J］.Acta Materialia,2016,116: 53-62.

[8] [8] Zhang L X, Liu P, Su Z X. Preparation of anatase nanocrystallines from low concentration precursor solution via a microwave assisted liquid phase deposition (MW-LPD) process［J］.Materials Research Bulletin,2006,41(9): 1631-1637.

[9] [9] Goldstein A, Kaplan W D, Singurindi A. Liquid assisted sintering of SiC powders by MW (2.45 GHz) heating［J］.Journal of the European Ceramic Society,2002,22: 1891-1896.

[10] [10] Sonia, Chandrasekhar M, Kumar P. Microwave sintered sol-gel derived BaTiO3 and Ba0.95La0.05TiO3 ceramic samples for capacitor applications［J］.Ceramics International,2016,42(9): 10587-10592.

[11] [11] Sirugudu R K, Vemuri R K M, Murty B S. Microwave sintering studies on low loss (Zn,Mg)TiO3 dielectric resonator materials［J］.Journal of Microwave Power and Electromagnetic Energy,2013,47(4): 262-269.

[12] [12] Rabha S, Chikkala A K, Dobbidi P. Structural and dielectric properties of (1-x)MgTiO3-xBa5Nb4O15 composites by microwave sintering process［J］.Ferroelectrics,2017,519(1): 145-151.

[13] [13] Asadian K, Shahgholi N, Ghafari S, et al. The effect of using microwave synthesized ZnNb2O6 powders on the dielectric properties of sintered products［J］.Journal of Electronic Materials,2018,47(12): 7151-7158.

[14] [14] Du Wen Y, Ai Y L, Chen W H, et al. Grain growth kinetics and growth mechanism of columnar Al2O3 crystals in xNb2O5-7.5La2O3-Al2O3 ceramic composites［J］.Ceramics International,2019,45(6): 6788-6794.

[15] [15] Ni D W, Andersen K B, Esposito V. Sintering and grain growth kinetics in La0.85Sr0.15MnO3-Ce0.9Gd0.1O1.95 (LSM-CGO) porous composite［J］.Journal of the European Ceramic Society,2014,34(15): 3769-3778.

[18] [18] Kipkoech E R, Azough F, Freer R. Microstructural control of microwave dielectric properties in CaTiO3-La(Mg1/2Ti1/2)O3 ceramics［J］.Journal of Applied Physics,2005,97(6): 1-11.