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All Journal Tekno : Jurnal Teknologi Elektro dan Kejuruan JETT (Jurnal Elektro dan Telekomunikasi Terapan) JTERA (Jurnal Teknologi Rekayasa) Kilat Jurnal Ilmiah Sutet TELEKONTRAN: Jurnal Ilmiah Telekomunikasi, Kendali dan Elektronika Terapan Jurnal Teknik TELKA - Telekomunikasi, Elektronika, Komputasi dan Kontrol JMECS (Journal of Measurements, Electronics, Communications, and Systems) International Journal of Industrial Research and Applied Engineering JTIULM (Jurnal Teknologi Informasi Universitas Lambung Mangkurat) JITEL (Jurnal Ilmiah Telekomunikasi, Elektronika, dan Listrik Tenaga) EPSILON: Journal of Electrical Engineering and Information Technology Jurnal Elektronika dan Telekomunikasi
M. Reza Hidayat
Universitas Jenderal Achmad Yani
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Low Noise Amplifier Dual Stage dengan Metode π-Junction untuk Long Term Evolution (LTE) Atik Charisma; Nahal Widianto; M. Reza Hidayat; Handoko Rusiana Iskandar
TELKA - Jurnal Telekomunikasi, Elektronika, Komputasi dan Kontrol Vol 8, No 2 (2022): TELKA
Publisher : Jurusan Teknik Elektro UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/telka.v8n2.116-125

Abstract

Long Term Evolution (LTE) merupakan teknologi tanpa kabel yang memerlukan komponen-komponen elektronika untuk mendukung performansinya. Salah satu komponen elektronika tersebut yaitu Low Noise Amplifier (LNA) sebagai penguat di bagian penerima. Penelitian ini merancamg Low Noise Amplifier dengan bantuan software berdasarkan perhitungan. LNA bekerja pada frekuensi 1,8 GHz yang merupakan pita frekuensi LTE. Tahapan perancangan LNA dimulai dari pemilihan transistor, rangkaian DC bias, dan penyesuai impedansi. Transistor ATF 34143 menjadi pilihan untuk LNA karena sesuai dengan spesifikasi yang dibutuhkan. Komponen perancangan LNA untuk rangkaian DC meliputi resistor, kapasitor, dan induktor. Salah satu metode yang digunakan pada rangkaian penyesui impedansi yaitu metode π-junction pada bagian input dan output. Rangkaian penyesuai impedansi menggunakan mikrostrip. Sebuah transitor ditambahkan secara cascade untuk meningkatkan performansi LNA. Paremeter-parameter penting sebagai kinerja LNA yaitu noise figure, faktor kestabilan, dan gain. Hasil simulasi perancangan LNA ini memperoleh nilai noise figure sebesar 0,561 dB, gain 36,463 dB, dan faktor kestabilan 1,785. Parameter hasil perancangan telah memenuhi spesfikasi LNA serta kebutuhan LTE.Long Term Evolution (LTE) is a wireless technology that requires electronic components to support its performance. One of the electronic components is the Low Noise Amplifier (LNA) as an amplifier at the receiver. This study designed a Low Noise Amplifier with the help of software based on calculations. LNA works on the 1.8 GHz frequency which is the LTE frequency band. The LNA design stages start from the selection of transistors, DC bias circuits, and impedance matching. The ATF 34143 transistor is the choice for LNA because it fits the required specifications. LNA design components for DC circuits include resistors, capacitors, and inductors. One of the methods used in impedance matching circuits is the π-junction method on the input and output sections. Impedance adjustment circuit using microstrip. A transistor is added cascade to improve LNA performance. Important parameters as the performance of LNA are noise figure, stability factor, and gain. The simulation results of this LNA design obtain a noise figure value of 0.561 dB, a gain of 36.463 dB, and a stability factor of 1.785. The design parameters have met the LNA specifications and LTE requirements.
Pengaruh Pembebanan Terhadap Efisiensi Transformator Distribusi Di PT. PLN (Persero) UP3 Garut M. Reza Hidayat; Iqbal Fadilah
Sutet Vol 13 No 1 (2023): JURNAL ILMIAH SUTET
Publisher : Sekolah Tinggi Teknik - PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Transformer efficiency is defined as the ratio of the incoming power to the outgoing electric power. Even so the ideal transformer has 100% efficiency, this ideal transformer does not exist, because the energy that goes out is always less than the energy that goes in, meaning that there is energy loss. Load imbalance in an electric power distribution system always occurs and the imbalance is in single-phase loads in low-voltage network subscribers. Due to the load imbalance, a current appears in the neutral of the transformer. Perform analysis and compare efficiency. Analysis of used load capacity is not efficient. Analysis of the results of current and voltage measurements at the substation to obtain efficiency, and transformer losses in day and night conditions using LWBP and WBP methods. In this study, observations were made regarding the transformer efficiency analysis using the Outside Peak Load Time (LWBP) and Peak Load Time (WBP) methods. The LWBP method is carried out during the day for 20 hours, while the WBP method is carried out at night for 4 hours, from 18.00 to 22.00. Then measurements were made at PT. PLN (Persero) UP3 Garut. For the highest percentage of loading which is close to the standard of 80%, namely the afternoon loading at the PDDK substation, which is 50.93%, the load used is 50.93 kVA. The night load at the CITL substation is 77.49%, the load used is 77.49 kVA. For the lowest percentage of loading that deviates from the standard 80%, namely the daytime loading at the SJRK substation, which is 16.32%, the load used is 16.32 kVA. The night load at the SJRK substation is 21.52%, the load used is 21.52 kVA. Based on observations, it is not efficient because the unused load is very large, it is recommended to use a smaller transformer capacity. The highest efficiency in the LWBP method is at the CITK substation 97.87%, the lowest at the PDDK substation 94.55%. The highest efficiency in the WBP method is at SJRK substations 95.5%, the lowest at PDDK substations is 92.1%.
Antena Helix Mode Axial untuk Frekuensi Kerja Radar S-Band M. Reza Hidayat; Aditya Febryana; Nivika Tiffany Somantri; Yussi Perdana Saputera
Jurnal Teknik: Media Pengembangan Ilmu dan Aplikasi Teknik Vol 22 No 1 (2023): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik
Publisher : Fakultas Teknik - Universitas Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55893/jt.vol22no1.478

Abstract

This study designed an axial mode helix antenna with a working frequency used of 2.1 GHz, which has a return loss value of < -10 dB and VSWR < 1.3. The simulation was carried out using the CST studio suite 2020 software by designing a helix antenna from the calculation results to optimization of the helix antenna structure, namely the distance between the windings, the number of windings, the diameter of the windings, and the diameter of the ground plane until the simulation results are in accordance with the specifications of the desired parameters. Based on the final results of the return loss parameters and VSWR has met the designed specification standards, from the simulation results of the axial mode helix antenna, the results were obtained, namely at a return loss of -22 dB and at a VSWR value obtained 1.17. The results of the measurement of the axial mode helix antenna obtained the same result at a return loss of -22 dB and at VSWR 1.17 but the frequency value used in the measurement shifted to 2.45 GHz, this is not a problem because the s-band frequency can work from 2 GHz to 4 GHz.
Excitation Analysis of Transverse Electric Mode Rectangular Waveguide M. Reza Hidayat; Mohamad Hamzah Zamzam; Salita Ulitia Prini
Jurnal Elektronika dan Telekomunikasi Vol. 20 No. 1 (2020)
Publisher : National Research and Innovation Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jet.v20.1-8

Abstract

A waveguide is a transmission medium in the form of a pipe and is made from a single conductor. A waveguide has the function of delivering electromagnetic waves with a frequency of 300 MHz - 300 GHz and is able to direct the waves in a particular direction. In its development, a waveguide can be used as a filter. A filter consists of several circuits designed to pass signals that are generated at a specific frequency and attenuate undesired signals. One type of filter that can pass a signal in a particular frequency range and block signals that are not included in that frequency range is a bandpass filter. In this article, we study a rationing analysis on rectangular waveguide using TEmn mode followed by an implementation of a bandpass filter in the frequency range of 3.3-3.5 GHz for S-Band Wireless Broadband and Fixed Satellite. The observation process is done by shifting the position of the connector (power supply) as much as five times the shift to get the results as desired. Based on the analysis of the simulation process using Ansoft HFSS software, it is observed that the optimized results of the rectangular waveguide mode TE10 were obtained at a distance between connectors of 30 mm with a cut-off frequency of 3.3 GHz, the value of the return loss parameter of -34.442 dB and an insertion loss of -0.039 dB. Whereas, the optimized TE20 mode can be obtained at a distance of 70 mm between connectors, with a cut-off frequency of 3.5 GHz, the value of the return loss parameter of -28.718 dB and an insertion loss of -0.045. The measurement of TE10 mode in our Vector Network Analyzer (VNA) shows a cut-off frequency of 3.2 GHz, with a value of the return loss of -18.73 dB and an insertion loss of -2.70 dB. Meanwhile, a measurement of TE20 mode results in a cut-off frequency of 3.2 GHz, with a value of the return loss of -5.89 dB and an insertion loss of -4.31 dB.
Analytical Performance of Low Noise Amplifier Using Single-Stage Configuration for ADS-B Receiver M. Reza Hidayat; Ilham Pazaesa; Salita Ulitia Prini
Jurnal Elektronika dan Telekomunikasi Vol. 21 No. 2 (2021)
Publisher : National Research and Innovation Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jet.v21.91-97

Abstract

Automatic dependent surveillance-broadcast (ADS-B) is an equipment of a radar system to reach difficult areas. For radar applications, an ADS-B requires a low noise amplifier (LNA) with high gain, stability, and a low noise figure. In this research, to produce an LNA with good performance, an LNA was designed using a BJT transistor 2SC5006 with DC bias, VCE = 3 V, and current Ic = 10 mA, also a DC supply with VCC = 12 V, to achieve a high gain with a low noise figure. The initial LNA impedance circuit was simulated using 2 elements and then converted into 3 elements to obtain parameters according to the target specification through the tuning process, impedance matching circuit was used to reduce return loss and voltage standing wave ratio (VSWR) values. The LNA sequence obtains the working frequency of 1090 MHz, return loss of -52.103 dB, a gain of 10.382, VSWR of 1.005, a noise figure of 0.552, stability factor of 0.997, and bandwidth of 83 MHz. From the simulation results, the LNA has been successfully designed according to the ADS-B receiver specifications.
Co-Authors Adhitya Ari Poetra Aditya Febryana Andre Yanuar Arief Rachman Arif, Munawwar Atik Charisma Budi Septiana Sapudin Chabesno S Panggabean Christiono CHRISTIONO CHRISTIONO Daswara Djajasasmita Denasti Fajar Sukmawan Dhami Johar Dhamiri Difa Dwi Juliantara Sukmawan Fajar Mustofa Fajar Zulkarnain, Andry Fikri, Miftahul Giri Angga Setia Griffani Megiyanto Rahmatullah Handoko Rusiana Iskandar Handoko Rusiana Iskandar Hasanuddin, Zulfajri Basri Hidayat Ramdan Ilham Pazaesa Iqbal Fadilah Mohamad Hamzah Zamzam Muh. Rezha Safariansyah Nahal Widianto Nivika Tiffany Somantri Nur Adny Muhammad Palantei, Elyas Reza Agung Permana Rima Anisa Maulidini Salita Ulitia Prini Salita Ulitia Prini Sofyan Basuki Susanto Sambasri Susanto Sambasri Syahty Pratiwi Teguh Praludi Thio Fajar Shantony Yana Yohana Yudith Yunia K Yuliana, Hajiar Yussi Perdana Saputera