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- W2095442817 abstract "Partial Discharge (PD) detection in the ultra wideband (UWB) at frequency from 100 kHz up to and above 1 GHz give some benefits especially for nature observation of PD pulse shape and frequency spectrum. One of the methods to measure the UWB PD signal is a method of impedance matched. Impedance of 50 ohm corresponding to the characteristic impedance of the coaxial cable and the internal impedance of oscilloscope is used as a coupling device to maximize the power transfer of PD current so that it can obtain real PD signals. This paper designs a matching impedance which composed from attenuator as detecting impedance and UWB amplifier as signal amplifier and evaluates the performance using S-parameter value. The matching impedance has good reflection loss below ~10 dB over low frequencies up to 3 GHz frequency bandwidth, with a minimum value of S11 is ~28.8 dB at a frequency of 322 MHz and ~18.3 dB at 3 GHz. The input impedance and output impedance values are close to 50 ohm over the frequency bandwidth. The gain (S21) of the impedance matching circuit is 14 dB at a frequency close to DC and down to a 6 dB at a frequency of 100 MHz and have flat value of 6 dB up to 3 GHz frequency. From the simulation results, the designed matching impedance has frequency bandwidth from DC up to 3 GHz that can be implemented as a coupling device for UWB PD detection." @default.
- W2095442817 created "2016-06-24" @default.
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- W2095442817 date "2013-10-01" @default.
- W2095442817 modified "2023-10-16" @default.
- W2095442817 title "Design of matching impedance for ultra wideband partial discharge detection" @default.
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- W2095442817 doi "https://doi.org/10.1109/iciteed.2013.6676266" @default.
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