Publication:
TEMPORAL ANALYSIS OF MICROWAVE RADIATION EMITTED BY STEPPED LEADERS OF A CLOUD-TO-GROUND FLASH

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dc.contributor.authorBaharin S.A.S.en_US
dc.contributor.authorAhmad M.R.en_US
dc.contributor.authorAlkahtani A.A.en_US
dc.contributor.authorEsa M.R.M.en_US
dc.contributor.authorSidik M.A.B.en_US
dc.contributor.authorid57206727343en_US
dc.contributor.authorid16021287600en_US
dc.contributor.authorid55646765500en_US
dc.contributor.authorid56563193100en_US
dc.contributor.authorid6506871127en_US
dc.date.accessioned2023-05-29T08:11:43Z
dc.date.available2023-05-29T08:11:43Z
dc.date.issued2020
dc.description.abstractLightning emits electromagnetic waves at various frequency spectrum band. In this paper, we report observational study of microwave radiation emitted by lightning. The lightning measurement is conducted by using an air-gap parallel plate antenna that resonate at around 1 GHz with a bandwidth of 20 MHz. The recorded microwave radiation waveform is analyzed based on the waveform of Fast E-field Antenna (FA). Although the stepped leader (SL) discharge process radiates well at microwave radiation, there is a higher microwave radiation preceded the stepped leader which is identified as Quiet Period, (QP). The average duration of QP is 3.707 �s while the average duration of SLs recorded is 2.883 �s. The percentage ratio of the peak amplitudes of the microwave bursts during QP is between 34.3% and 49.5% larger than the amplitude of the microwave bursts during SLs. Microwave radiation is seen to initiate the stepped leader process as the largest amplitudes of microwave burst is recorded during the QP. The characteristics of the microwave waveforms of SL and QP are observed to be oscillating individual pulses but the peak amplitudes of the microwave radiation bursts during the QP are larger than during SLs. � 2019en_US
dc.description.natureFinalen_US
dc.identifier.epage234
dc.identifier.issue2-Feb
dc.identifier.scopus2-s2.0-85129355141
dc.identifier.spage223
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85129355141&partnerID=40&md5=16372d27485c09b33d25b7b6d2d0c370
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/25613
dc.identifier.volume14
dc.publisherPenerbit Universiti Teknikal Malaysia Melakaen_US
dc.sourceScopus
dc.sourcetitleJournal of Advanced Manufacturing Technology
dc.titleTEMPORAL ANALYSIS OF MICROWAVE RADIATION EMITTED BY STEPPED LEADERS OF A CLOUD-TO-GROUND FLASHen_US
dc.typeArticleen_US
dspace.entity.typePublication
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