Long bowtie antenna for partial discharge sensor in gas-insulated substation

This Antenna Sensor for partial discharge (PD) detection has been widely proven in Gas-Insulated Substation (GIS) monitoring. The electromagnetic wave produced from PD activity which occurs at a frequency of 300 MHz to 3000 MHz This paper present design of the long bowtie antenna. Its development from the original bowtie antenna to acquire more bandwidth. Simulation using the finite element method (FEM). bandwidth total long bowtie antenna design results in return loss (RL) value under −10 decibel (dB) is 870 MHz Dual frequency resonant on 900 MHz with RL value −19.98 dB and 2.21 GHz with RL value −20.981 dB.