| Title |
Residual Voltage Reduction of Coaxial Surge Arrestor Using Ceramic Filter |
| Authors |
Ju-Hong Eom ; Sung-Cheol Cho ; Tae-Hyung Lee ; young-Chul Lee |
| Keywords |
Coaxial surge arrester ; ceramic filter ; Shorting stub ; Surge protector |
| Abstract |
Extension of the mobile communication and the rapidly developing services connected with wireless multimedia(W-CDMA, DMB, Wibro, and so on) need great many base station transceiver systems, antennas, and many signal transmission line to embody these services. The main communication appliances system is exposed always in danger of transient overvoltage by direct stroke or induced lightning surge flowing in through antenna because the antenna of base station transceiver system or relay equipment is combined with expensive communication network equipments through signal transmission line. Now, gas discharge tube(GDT) or narrow band stub arrestor which is used by the surge protector for communication use is exposing limitations as for lightning surge protective means of the communication facility with high speed and wide frequency band. Therefore, for improving performance of surge arrestor, we applied ceramic filter which can reduce lightning surge invading from antenna effectively, and proved that ceramic filter is effective in residual voltage reduction through the experimental research. |