Zobrazeno 1 - 10
of 86
pro vyhledávání: '"Seok Kil Han"'
Autor:
Hyo-Sang Choi, Tae Hyun Sung, Byoung-Sung Han, Min-Hwan Kwak, Seok-Kil Han, Kay-Hyeok An, Sung-Hae Jung, Chang-Hun Yun, Sung-Hun Lim, Je-Ha Oh, Kwang-Yong Kang, Sung-Yul Choi, Dong-Chul Chung, Jong-Sun Hwang
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 15:1048-1051
We report the comparison results of an HTS antenna array for circular polarization with a self cryostat and comparison with a gold counterpart. The HTS antenna array designed in this work was fabricated using a YBCO superconducting thin film on an Mg
Autor:
Seung Joon Lee, Min-Hwan Kwak, Won-Jeong Kim, Tae Kwon Song, Youn Tae Kim, Haecheon Kim, Chul-Soo Kim, Seok-Kil Han, Eunkyung Kim, K. Y. Hang, Seung Eon Moon, Hojun Ryu, S. S. Kim
Publikováno v:
Journal of Electroceramics. 13:245-249
Coplanar waveguide (CPW) transmission lines were fabricated on thin ferroelectric Ba1 − xSrxTiO3 films for tunable microwave applications. The growth of the ferroelectric oxide films was accomplished by a pulsed laser deposition with a partial oxyg
Autor:
Sang Seok Lee, Seung Eon Moon, Su-Jae Lee, Seok-Kil Han, Han-Cheol Ryu, Young-Tae Kim, Min-Hwan Kwak
Publikováno v:
Integrated Ferroelectrics. 58:1305-1314
Compositionally graded (Bax,Sr1 − x)TiO3 [BST] ferroelectric thin films have been received much attention in graded ferroelectric devices due to their unique properties, such as large pyroelectric coefficients, large polarization offset and small t
Autor:
Su-Jae Lee, Seungeon Moon, Min-Hwan Kwak, Han-Cheol Ryu, Young-Tae Kim, Sang-Seok Lee, Seok-Kil Han
Publikováno v:
Integrated Ferroelectrics. 58:1305-1314
Autor:
Min-Hwan Kwak, Han-Cheol Ryu, Seung Eon Moon, Young-Tae Kim, Su Jae Lee, Jun-Seok Park, Sun-Hyeong Kim, Seok-Kil Han
Publikováno v:
Integrated Ferroelectrics. 56:1107-1114
In this paper, in order to obtain a large differential phase shift with a little change in applied voltage, a ferroelectric reflective load circuit has been designed on top of barium strontium titanate (Ba,Sr)TiO3 [BST] thin film. The design of the f
Microwave Properties of Tunable Interdigitated Capacitor Fabricated on Ba 0.6 Sr 0.4 TiO 3 Thin Film
Publikováno v:
Ferroelectrics. 272:237-242
Microwave properties of Ba 0.6 Sr 0.4 TiO 3 (BST) thin film have been studied using interdigitated capacitor (IDC) structure in the frequency range from 1 to 10 GHz at room temperature. IDC was fabricated on the c -axis oriented BST film grown by the
Publikováno v:
Ferroelectrics. 272:333-338
High power microwave properties of the ferroelectric phase shifters have been studied to reduce the effect of the nonlinear response of ferroelectrics under high power microwave with an applied dc bias field of 0 - 40 kV/cm. The Ba 0.6 Sr 0.4 TiO 3 f
Publikováno v:
Integrated Ferroelectrics. 49:151-158
Compositionally graded ferroelectric thin films have execellent dielectric properties and abnormal ferroelectric properties which can be used in various microelectronic devices. Compositionally graded (BaSr)TiO 3 [BST] thin films were prepared on MgO
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 11:4023-4026
A new type of low-pass filter based on a coupled line and transmission line theory is proposed for suppressing harmonics and spurious frequency. The seventh-order coupled-line low-pass filter with strip line configuration was fabricated using a high-
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 11:3844-3847
We have deposited large area YBa/sub 2/Cu/sub 3/O/sub 7-x/ thin films by cylindrical hollow cathode sputtering using a 9 cm diameter hollow cathode sputtering gun. The zero resistance temperature of the films at the center and edge were in the range