Title :
Narrow-band surge protector for medium-wave digital transmitter with comprehensive monitoring system
Author_Institution :
Dept. of Inf. Technol. & Electr. Eng., Daiichi Inst. of Technol., Kirishima, Japan
Abstract :
The surge protector (SP) protects the medium wave transmitter damages from deterioration of the VSWR on the output transmission system including the antenna characteristics. In this paper describes the avoidance for SP operation on the antenna VSWR characteristics under the sharpness of the impedance characteristics on high frequency audio modulation. We developed the new type of narrowband detection circuit for SP system. Furthermore, we constructed the flexible comprehensive monitoring system that is able to monitor the output transmission devices with the microscopic or macroscopic conformation.
Keywords :
frequency modulation; radio transmitters; surge protection; transmitting antennas; SP system; VSWR impedance characteristics; VSWR output transmission system; antenna characteristics; comprehensive monitoring system; flexible comprehensive monitoring; frequency audio modulation; macroscopic conformation; medium-wave digital transmitter; microscopic conformation; narrow-band surge protector; narrowband detection circuit; Circuits; FETs; Frequency modulation; Monitoring; Narrowband; Power system protection; Radio transmitters; Surge protection; Transmitting antennas; Voltage; λ/4 circuit; Digital radio transmitter; Medium-wave; VSWR; lightning protection;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2009. I2MTC '09. IEEE
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-3352-0
DOI :
10.1109/IMTC.2009.5168440
