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All Journal International Journal of Electrical and Computer Engineering Bulletin of Electrical Engineering and Informatics Jurnal Ilmu Ekonomi Indonesian Journal of Aerospace
Prabowo, Yanuar
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Aerospace Engineering Astronomy Computer Science & IT Economics, Econometrics & Finance Electrical & Electronics Engineering Social Sciences

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Unconsidered but influencing interference in unmanned aerial vehicle cabling system Setyadewi, Imas Tri; Prabowo, Yanuar; Wibowo, Priyo; Priambodo, Purnomo Sidi
International Journal of Electrical and Computer Engineering (IJECE) Vol 14, No 1: February 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v14i1.pp22-30

Abstract

The increasing complexity of electrical and electronic systems in unmanned aerial vehicles (UAVs) has raised concerns regarding unwanted electromagnetic interference (EMI) due to limited compartment space. Recent studies have highlighted the UAV cabling as the primary pathway for interference. This paper presents a novel approach to investigating the effects of interference power, polarization angle, and distance from the interference source on EMI in UAV cable systems. Measurements and simulations were performed to analyze the influence of these factors on the radiation received by the cable. A linear dipole antenna, operating at a frequency of 905 MHz, served as the radiation source, while a single wire cable pair terminated with a 50-ohm resistor was employed as the victim. The findings reveal that the power transmitted by the source, the distance between the cable and the source, and the polarization angle have a significant impact on the electromagnetic interference received by the cable. Notably, a perpendicular orientation of the cable to the interference source (antenna) in the far-field yielded a reduction of up to 15 dBm in EMI. The results underscore the necessity for more sophisticated models and comprehensive measurements to fully comprehend the diverse factors affecting polarization losses in practical scenarios.
Analisis Daya Saing Sektor Ekonomi Unggulan Di Kabupaten Tangerang Tahun 2013-2022 Prabowo, Yanuar
Jurnal Ilmu Ekonomi JIE Vol. 7 No. 04 (2023): Jurnal Ilmu Ekonomi
Publisher : Program Studi Ekonomi Pembangunan Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jie.v7i04.29417

Abstract

This research aims to identify and evaluate the key economic sectors with development potential in the second-level region of Tangerang during the period 2011-2022. The research conducted is of a descriptive nature, utilizing ADHK GDP distribution data. Data analysis is performed through the employment of Tipology Klassen, Shift Share, SLQ, and DLQ methods. The research findings indicate that, during the period from 2013 to 2022, three sectors experienced significant growth, namely Agriculture, Forestry, and Fisheries, Manufacturing Industry, and Electricity and Gas Supply. Furthermore, the Shift Share analysis identified that the Wholesale and Retail Trade sector exhibited a high level of competitiveness during the same period. The combined analysis of SLQ and DLQ during the same period revealed that the leading economic sectors in the second-level region of Tangerang are Construction and Financial and Insurance Services.   Penelitian ini bertujuan untuk mengidentifikasi dan mengevaluasi sektor ekonomi utama yang memiliki potensi pengembangan di Kabupaten Tangerang dalam periode 2011-2022. Jenis penelitian yang digunakan adalah penelitian deskriptif, dengan menggunakan data distribusi PDRB ADHK. Analisis data dilakukan dengan menggunakan metode Tipologi Klassen, Shift Share, SLQ, dan DLQ. Hasil penelitian menunjukkan bahwa dalam periode 2013-2022, ada tiga sektor yang mengalami pertumbuhan signifikan, yaitu Pertanian, Kehutanan, dan Perikanan, Industri Pengolahan, serta Pengadaan Listrik dan Gas. Selain itu, analisis Shift Share mengidentifikasi bahwa sektor Perdagangan besar dan eceran memiliki tingkat daya saing yang tinggi dalam periode yang sama. Hasil gabungan analisis SLQ dan DLQ dalam periode yang sama mengungkapkan bahwa sektor ekonomi unggulan di Kabupaten Tangerang adalah Konstruksi dan Jasa Keuangan serta Asuransi
Analysis of unmanned aerial vehicle airframe materials on circularly polarized antenna radiation characteristics Wahyudi, Wahyudi; Setyadewi, Imas Tri; Sakti, Mohammad Amanta Kumala; Prabowo, Yanuar; Hadiyanti, Donatina Miswati; Rahayu, Novelita; Muzayadah, Nurul Lailatul; Wahyudi, Agus Hendra; Guno, Yomi; Praludi, Teguh; Santosa, Cahya Edi; Sumantyo, Josaphat Tetuko Sri
Bulletin of Electrical Engineering and Informatics Vol 14, No 4: August 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v14i4.8010

Abstract

This paper presents an experimental examination of how unmanned aerial vehicle (UAV) airframe materials affect the electromagnetic characteristics of the airborne circularly polarized (CP) payload antenna. This study specifically investigates the received signal from the circularly polarized synthetic aperture radar (CP-SAR) antenna installed within the fuselage of the lapan surveillance UAV (LSU). In the airborne CP-SAR experiment, broadband CP microstrip subarray antennas were used along with LSU series airframe material composites comprising E-glass EW-185 and Carbon C522 Twill. The composite specimens were prepared to have the same size and thickness to minimize variability in the comparative analysis. The experimental study measures the transmission loss using S-parameters. At 5.3 GHz, the E-glass EW-185 fiber composite exhibits a material attenuation of -1.5 dB and a circular depolarization of 0.32 dB. The E-glass EW-185 fiber composite exhibits a material attenuation of -1.5 dB and a circular depolarization of 0.32 dB. In contrast, the Carbon C522 Twill fiber composite demonstrates a significantly higher material attenuation of -31.24 dB and a circular depolarization of 10.70 dB. Additionally, this paper examines the radiation pattern measurements of the CP-SAR antenna at various frequencies, providing a comprehensive analysis of the materials' impact on antenna performance.
ANALYSIS OF ELECTRICAL LOAD ASSESSMENT LSU (LAPAN SURVEILLANCE UAV) 03 Setyadewi, Imas Tri; Sumarna, Encung; Prabowo, Yanuar
Indonesian Journal of Aerospace Vol. 17 No. 1 Juni (2019): Jurnal Teknologi Dirgantara
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30536/j.jtd.2019.v17.a3108

Abstract

LSU 03 Aircraft was used for LSU MISI with capability cruise up to 340 km. LSU 03 has an operation for marine safety from illegal fishing. To support the monitoring mission of illegal fishing with operation range up to 250 km or 3 hours flight, several required system are needed such as autopilot system, datalink, propulsion, and payload. All of system then analysed by an ELA (Electrical Load Assessment) of the aircraft system to know the necessary power required to conduct the initial mission of the aircraft. ELA analysis is done by calculating the power requirement from each component specification and function test of the component for validation of calculation result. From the results of the study, the amount of power consumption is 35% from the spec calculation, which is 32.43 Wh which can be accommodated by a battery system up to 4.2 hours. Whereas for ignition or aircraft engines whose source of battery uses LIPO 2S 7.4 Vdc batteries can accommodate the ignition energy requirements for more than 11 hours.
Co-Authors Guno, Yomi Hadiyanti, Donatina Miswati Josaphat Tetuko Sri Sumantyo, Josaphat Tetuko Sri Muzayadah, Nurul Lailatul Priyo Wibowo, Priyo Purnomo Sidi Priambodo Rahayu, Novelita Sakti, Mohammad Amanta Kumala Santosa, Cahya Edi Setyadewi, Imas Tri Sumarna, Encung Teguh Praludi Wahyudi Wahyudi Wahyudi, Agus Hendra