Antenna Design For Detection Of Angular Momentum Signal From Lightning

Rosmunawar, Amirul Asyraf (2019) Antenna Design For Detection Of Angular Momentum Signal From Lightning. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Lightning flash is an electrical discharge in air which is in scientific term, it is called as dielectric breakdown. It emits the electromagnetic fields across wide spectra which is from few Hertz (Hz) up to Mega Hertz (MHz). Lightning has many types of flash such as cloud-to-ground (CG), Compact Intracloud Discharge (CID), Intra-cloud (IC), Narrow Bipolar Event (NBE), and Preliminary Breakdown Pulse (PBP). There are two categories of antenna in lightning detection application which are fast field detection and slow field detection. Circular Patch Antenna is developed to detects and radiates orbital angular momentum signal. It is widely used in Wi-Fi communication spectrum which is 2.45GHz. However, this antenna has been modified to work in low frequency spectrum for lightning application. The antenna is capable to work in range few hertz to 3.535MHz after the modification been made. The result of circular patch antenna in this project is compare with the existing antenna in lightning detection which is air-gap antenna. The comparison for both antenna are using temporal analysis. Temporal analysis helps to determine the difference of amplitude, ratio, and average for these two antennas. As a results, circular patch antenna operates in peak performance at 1KHz in lightning application

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