Design Of A Loop Antenna For Lightning Application

Mohd Rabi, Mohammad Asra Quzzaimi (2017) Design Of A Loop Antenna For Lightning Application. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Lightning is a type of natural phenomena.It is formed from an electrical discharge at the thundercloud.During the strikes,electromagnetic radiation will be formed.As we all know,nowadays the study about lightning has become growing,increasing and widening.Thus,lightning detection system has become the most demanded and needed for the researcher.For the common lightning detection system, there are two types of radiation that can be detected nowadays which is electric field (E-field) and magnetic field (B-field).For this project,it focuses on magnetic field (B-field) detection system.Loop antenna is the most suitable type of antenna to use for the magnetic field (B-field) detection system.This is because the direction of magnetic field (B-field) that emits is in horizontal axis based on Ampere-Maxwell's Law.Thus,the structure of the loop antenna is very suitable to capture the magnetic field (Bfield).Therefore,this project aims to design and construct the loop antenna.Besides,for making the system more efficient,the buffer circuit also designed for act as the filter to filter the input frequency to the certain ranges.This project also intends to build a low cost loop antenna.After the construction process of the loop antenna and buffer circuit,the system was tested it capability for capturing magnetic field (B-field)produces from the 'electric fly swatter'.The 'electric fly swatter' has the same principle with lightning discharge. Last but not least,the result of magnetic field (Bfield) waveform compared with the electric field (E-field) waveform which is from the existing A4 FR4 copper plate capacitive antenna to see the relationship between the direction of magnetic field (B-field) and electric field (E-field).

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