Zobrazeno 1 - 7
of 7
pro vyhledávání: '"D. C. Geambasu"'
Publikováno v:
2019 International Semiconductor Conference (CAS).
Numerical investigations on a frequency selective surface using metalized strips deposited on high resistive silicon in a millimeter waves are presented in this paper. High resistivity Si substrate was chosen due to the very good transparence in mill
Autor:
N. Militaru, Lucian Trupina, O. G. Avadanei, D. C. Geambasu, L. Nedelcu, Marian Gabriel Banciu
Publikováno v:
2018 International Symposium on Fundamentals of Electrical Engineering (ISFEE).
Barium neodymium titanate material was manufactured by using solid-state reaction technique. Two types of microstrip fed antennas using half-split cylindrical resonators of barium neodymium titanate are proposed. New methods for coupling modes are in
Autor:
D. C. Geambasu, N.D. Scarisoreanu, Lucian Trupina, Valentin Ion, Marian Gabriel Banciu, Cristina Besleaga-Stan, L. Nedelcu
Publikováno v:
2018 International Symposium on Fundamentals of Electrical Engineering (ISFEE).
A microstrip and a printed monopole antenna were designed for 5.8 GHz frequency band on the same 0.5 mm thick high dielectric constant substrate. For printed monopole antenna, a new arrowhead antenna is proposed. The arrowhead monopole antenna exhibi
Autor:
Marian Gabriel Banciu, D. Pantelica, M.D. Dracea, L. Hrib, A. Iuga, Lucian Trupina, P. Ionescu, Masahiko Tani, L. Nedelcu, D. C. Geambasu, Cristina Chirila, Takashi Furuya
Publikováno v:
2018 International Semiconductor Conference (CAS).
Investigations of barium strontium titanate (BST) layers deposited on MgO and Si substrates are presented. Since the Sr content determines the dielectric and optical properties of the BST layers at room temperature, accurate compositional analysis wa
Autor:
Marian Gabriel Banciu, L. Nedelcu, D. C. Geambasu, N. Militaru, Rodica Ramer, A. Martian, Leontin Tuta, Lucian Trupina, Ioan Nicolaescu
Publikováno v:
2017 International Semiconductor Conference (CAS).
Investigations on antenna array for 5.8 GHz frequency band applications are presented in this paper. In order to enhance the characteristics of the dielectric resonator antenna elements, a pair of resonators with different sizes and dielectric consta
Publikováno v:
2015 International Semiconductor Conference (CAS).
New type of dielectric resonator antennas (DRAs) with axial symmetry are proposed for frequencies around 5.8 GHz. Each element uses a high permittivity cylindrical resonator and a low permittivity resonator of a truncated cone shape. Two types of mic
Publikováno v:
2014 22nd Telecommunications Forum Telfor (TELFOR).
Investigations on compact dielectric resonator antennas are presented. Low-loss, high dielectric constant zirconium tin titanate (ZST) material was prepared by using solid state reaction method. The ZST resonators exhibit 36 dielectric relative permi