Construction of Slow and Fast Field Antenna for Detecting Lightning Strikes in South Sumatera

Two antennas - a slow-field antenna and a fastfield antenna - are constructed to measure the electric field generated by lightning. A 50-ohm RG-58 coaxial cable connects each antenna to a high-speed buffer circuit. The OPA633 is utilized in both buffer circuits, which have identical designs. The onl...

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Published in2022 9th International Conference on Electrical Engineering, Computer Science and Informatics (EECSI) pp. 276 - 282
Main Authors Oktaviani Anwar, Wiwin A., Bakar Sidik, Muhammad Abu, Ahmad, Mohd Riduan, Jambak, Muhammad Irfan, Yusdizali, Rio
Format Conference Proceeding
LanguageEnglish
Published Institute of Advanced Engineering and Science (IAES) 06.10.2022
Subjects
Antenna measurements
buffer circuit
Electric variables measurement
fast field
Lightning
lightning detection
Mathematical models
Noise measurement
parallel plate antenna
Receiving antennas
Recording
slow field
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Summary:Two antennas - a slow-field antenna and a fastfield antenna - are constructed to measure the electric field generated by lightning. A 50-ohm RG-58 coaxial cable connects each antenna to a high-speed buffer circuit. The OPA633 is utilized in both buffer circuits, which have identical designs. The only difference between the two buffer circuits is the buffer capacitance value, which is 15 pF for the fast field and 10 nF for the slow field. The electric field measured by this circuit represents the electric field strength normal to the ground. Both buffer circuits function well up to frequencies of 100 kHz for the slow field and 1 MHz for the fast field, according to the test findings and circuit simulation with NI MULTISIM 13.0. This measuring equipment has successfully captured electromagnetic waves from lightning with noise levels as low as 180 mV.
DOI:10.23919/EECSI56542.2022.9946568