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All Journal Elektron Jurnal Ilmiah Jurnal Teknologi Elekterika Brilliance: Research of Artificial Intelligence
Nasrul
Politeknik Negeri Padang, Indonesia
Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Engineering Mathematics Other

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Antena Vivaldi Konvensional untuk Penerapan pada Radar Cuaca (9.4 GHz) Randhika Rianza; Uzma Septima; Ahmad Dahlan; Firdaus Firdaus; Nasrul Nasrul; Yulindon Yulindon; Yustini Yustini
Elektron : Jurnal Ilmiah Volume 14 Nomor 1 Tahun 2022
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/eji.14.1.236

Abstract

To predict weather conditions as an anticipation act towards natural disasters, a weather radar is needed. In weather radar technology, antennas play an important role in supporting the performance of the weather radar. Vivaldi antenna is the right choice because it has an unlimited bandwidth so it is able to operate at the desired work frequency, including the working frequency of weather radar (9.4 GHz). This research discusses the modification of tapered slots, circular stub, radial stub, length and width of the reference vivaldi antenna [1] using CST Studio software. After modifications and measurements, a return loss value of -23.25336989 dB, bandwidth of 500 MHz, VSWR 1.188463357, gain of 3.99 dBi, and unidirectional radiation patterns. All the resulting antenna parameter values are in good condition and qualify the weather radar antenna for a working frequency of 9.4 GHz.
Implementasi dan Perfomansi Jaringan Fiber To The Home dengan Teknologi GPON. Yustini Yustini; Aprinal Adila Asril; H Nasrul Nawi; Rahmatullah Hafizt; Arsis Warman
Jurnal Teknologi Elekterika Vol 18, No 2 (2021): Nopember
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/elekterika.v5i2.3032

Abstract

Fiber To The Home (FTTH) merupakan arsitektur teknologi fiber optic dengan mengirimkan informasi dari provider hingga ke pengguna. Teknologi yang popular digunakan dalam jaringan FTTH ini adalah Gigabit Passive Optical Network (GPON). Dalam penelitian ini penulis mengimplementasikan sebuah arsitektur FTTH dengan menggunakan teknologi GPON di laboratorium komunikasi serat optic Politeknik Negeri Padang, untuk memahami konsep dasar jaringan FTTH, kemudian melihat nilai perfomansi parameter power link budget dan nilai redaman yang dihasilkan pada saat kondisi downstream. Nilai dari parameter tersebut akan dibandingkan dengan standar perusahaan PT.Telkom. Link Power Budget yang didapatkan dari implementasi FTTH pada link user 1 sebesar 15.62 dB, link user 2 sebesar 15.31 dB, link pada user 3 sebesar 16.69 dB dan link pada user 4 sebesar 14.93 dB. Hasil power link budget ini dapat dilihat bahwasannya nilai yang dihasilkan baik karena berada dibawah standar redaman PT.Telkom sebesar 28 dB. Selanjutnya kinerja jaringan diukur dengan menggunakan parameter Quality Of Service (QoS) dengan tujuan untuk mengetahui kualitas layanan data yang dihasilkan. Parameter QoS yang digunakan adalah Throughput,Delay dan Packet Loss. Hasil analisis data menunjukkan bahwa rata rata QoS yang didapatkan adalah troughput 29.79 Kbps, delay sebesar 0.021 ms dan packet loss sebesar 0%.
Axial Mode Helix Antenna to Amplify 4G LTE Signal in Rural Area: english Nasrul; Uzma Septima; Kelvin Andrian
Brilliance: Research of Artificial Intelligence Vol. 3 No. 2 (2023): Brilliance: Research of Artificial Intelligence, Article Research November 2023
Publisher : Yayasan Cita Cendekiawan Al Khwarizmi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/brilliance.v3i2.2985

Abstract

Rural areas that may still be difficult to get 4G signals are caused by the diversetopography of the region and uneven landscapes, especially in mountainous areaswhich result in weakness in signal reception in the area. To get 4G signal coveragein this area, it is necessary to have a repeater in the form of an antenna thatfunctions as a signal booster in the area. In this study, a helix antenna consistingof ten windings at the uplink (1710-1785 Mhz) and downlink (1805-1880 Mhz)4G LTE frequencies was designed. It is hoped that this antenna can produce highergain and a more focused beam, with the aim of strengthening 4G signals in ruralareas. The antenna design was tested through the use of CST Studio Suitesoftware. The antenna design has been simulated using CST Studio Suitesoftware. After optimizing the simulation results, a return loss of -14 dB, VSWRof 1.49, a gain of 12.47 dBi, and HPBW of 500 were obtained. From themeasurement results obtained, the helix antenna with ten turns shows goodperformance at a frequency of 1880 Mhz with a return loss of -17.75 dB, VSWRof 1.32, gain of 12.15 dBi, HPBW of 440, and unidirectional polarization.
2.3 Ghz Lte Antenna Design Using Triangle Geometry and Array Structure Uzma Septima; Yulindon; Herry Setiawan; Nasrul; Putra
Brilliance: Research of Artificial Intelligence Vol. 3 No. 2 (2023): Brilliance: Research of Artificial Intelligence, Article Research November 2023
Publisher : Yayasan Cita Cendekiawan Al Khwarizmi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/brilliance.v3i2.3035

Abstract

Microstrip antenna is one of the most important devices in telecommunications systems. One example is the design of a microstrip antenna on a long time evolution (LTE) device. Disadvantages of this microstrip antenna include low gain, poor directionality, low efficiency, resistance losses on the feed line and narrow bandwidth. This research will design a triangular patch array microstrip antenna to increase the gain so that it can meet the desired work specifications with a working frequency of 2.300MHz. The antenna is designed using FR-4 Epoxy substrate material with a size of 120 mm x 60 mm, which has a dielectric constant (?r) of 4.3, a loss tangent of 0.035 and a material thickness of 1.6 mm. Antenna designed using CST studio suite software 2018. The results obtained in the working frequency band 2280.4 MHz – 2370.0 Mhz, middle frequency 2332 MHz, return loss – 47.360dB, bandwidth 24.7MHz, VSWR 1.008, gain 4.39dBi, impedance 49.90 , and unidirectional radiation pattern.
Alat Pencegah Dini Kecelakaan Pada Kendaraan Bermotor Berbasis Internet of Things (Studi Kasus Jalur Sitinjau Lauik) Nawi, Nasrul; Firdaus, Firdaus; Septima, Uzma; Ramadhani, Suci
Elektron : Jurnal Ilmiah Volume 15 Nomor 2 Tahun 2023
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/eji.0.0.363

Abstract

The creation of an Internet of Things-based motor vehicle early prevetion tool (Sitinjau Lauik Case Study) has been completed.. The aim of this research is to develop a tool to minimize accidents caused by human physiological factors such as fatigue and drowsiness. This device utilizes the MPU 6050 sensor, pulse heart sensor, buzzer, vibration motor, GPS, Arduino Uno and Wemos D1 Mini. The research method began with the construction of the device and the permance testing of the system. The results indicate that the system of this device can detect drowsiness or fatigue by measuring the heart rate at less than 70 bpm using the pulse heart sensor and detecting head movements using the MPU 6050 sensor, where the X- axis angle is > 29,23 ° < - 30,63 ° and the Y-axis angle is > 29,33° < -20,12°. When drowsiness is detected, the device sends notifications via the Telegram application containing the driver’s condition, heart rate, andlocation through a Google Maps link. Subsequently, when the driver is drowsy, the buzzer sounds to provide a warning and the vibration motor provides vibration to give a sensory wake-up signal to the driver, helping to awaken them from a drowsy state. Overall, the device functions effectively.
Perancangan Antena MIMO 8x8 Frekuensi Kerja 3,5 GHz Untuk Teknologi 5G Nasrul, Nasrul; Nindika, Aprilia; Yustini, Yustini; Septima, Uzma
Elektron : Jurnal Ilmiah Volume 15 Nomor 2 Tahun 2023
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/eji.0.0.390

Abstract

The 8×8 MIMO antenna is designed and simulated using CST Studio Suite 2019 software, which generates a visualization using MATLAB software. After optimization, the measurement and simulation of the return loss parameters at a frequency of 3,5 GHz yielded results of -11,85 dB and -31,57 dB respectively. In addition, there are several other frequency ranges with values below -10 dB, such as between 3,047 GHz and 3,243 GHz, 3,438 GHz and 3,925 GHz, and 4,575 GHz and 5,095 GHz. The measured VSWR is 1,668, while the simulation results show a VSWR value of 1,054. In addition, the Mutual Coupling simulation result is -13,16, while the Mutual Coupling measurement is -28,53, with ECC values of 0,0005 and 0,0002, respectively.
Co-Authors Ahmad Dahlan Aprinal Adila Asril Arsis Warman Firdaus Firdaus Firdaus Firdaus Herry Setiawan Kelvin Andrian Nindika, Aprilia Putra Rahmatullah Hafizt Randhika Rianza Suci Ramadhani, Suci Uzma Septima Uzma Septima - Yulindon Yulindon Yustini