Ultrahigh frequency tunability of aperture-coupled microstrip antenna via electric-field tunable BST
Du Hong-Leia), Xue Qiana), Gao Xiao-Yanga), Yao Feng-Ruia), Lu Shi-Yanga), Wang Ye-Longb), Liu Chun-Hengc), Zhang Yong-Chenga), Lü Yue-Guangb), Li Shan-Dong†a),d)
       
XRD pattern of BST–MgO ceramic slice.