Article Per Year (5 Year)
p-Index From 2021 - 2026
3.592
P-Index
This Author published in this journals
All Journal Elektron Jurnal Ilmiah JURNAL NASIONAL TEKNIK ELEKTRO Rang Teknik Journal Jurnal Teknologi Elekterika Brilliance: Research of Artificial Intelligence Jurnal Teknologi Prosiding Seminar Nasional Sisfotek (Sistem Informasi dan Teknologi Informasi) International Journal of Advanced Science Computing and Engineering JURNAL ILMIAH PENELITIAN MAHASISWA International Journal of Wireless And Multimedia Communications JATAED: Journal of Appropriate Technology for Agriculture, Environment, and Development JURNAL PENGABDIAN PEMBANGUNAN PERTANIAN DAN LINGKUNGAN (JP3L) Jurnal Insan Pengabdian Indonesia SULIWA: Jurnal Multidisiplin Teknik, Sains, Pendidikan dan Teknologi
Yustini
Politeknik Negeri Padang
Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Medicine & Pharmacology Social Sciences Other

Published : 28 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 28 Documents
Search

 1   2   3 
IMPLEMENTASI BOOSTER 4G LONG TERM EVOLUTION (LTE) PADA PROVIDER TRI DI GEDUNG F POLITEKNIK NEGERI PADANG Widiansyah, Iqwan; Aulia, Siska; Yustini, Yustini
SULIWA: Jurnal Multidisiplin Teknik, Sains, Pendidikan dan Teknologi Vol. 3 No. 1 (2026): SULIWA: Jurnal Multidisiplin Teknik, Sains, Pendidikan dan Teknologi, Maret 202
Publisher : LEMBAGA KAJIAN PEMBANGUNAN PERTANIAN DAN LINGKUNGAN (LKPPL)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62671/suliwa.v3i1.125

Abstract

This study examines the quality of 4G LTE that operates indoors, namely at Gedung F Politeknik Negeri Padang, where initial testing reveals extremely low Reference Signal Received Power (RSRP) of about 36.86% due to physical stress. The primary goal of this study is to analyze 4G LTE quality based on RSRP, RSRQ, and SINR parameters before and after booster implementation, as well as to identify technical and environmental factors that affect kinerjanya. The technique used involves using a 4G LTE booster from Tri with an omnidirectional antenna, a log-periodic antenna, and a pengulang amplifier. Data is collected using the walk test method using the TEMS Pocket lunak perangkat, and it is analyzed using TEMS Discovery. The study's findings indicate a significant increase, with the rata-rata RSRP rising from 34.86% before to pemasangan to 97.83% in F304, 47.40% in F305, and 65.95% in koridor. RSRQ also shows improvement, with 91.44% becoming 100% in F304 and koridor and 99.74% in F305, while SINR remains stable at 100% in all locations. In summary, 4G LTE boosters are effective in improving signal quality, especially in the RSRP parameter, therefore they can improve data service availability in areas with worse signal quality.
Link Budget Site Planning in Kuranji Region Andalas University - Mount Sarik Marisa Cania; Dikky Chandra; Yustini Yustini
International Journal of Wireless And Multimedia Communications Vol. 1 No. 2 (2024): International Journal of Wireless And Multimedia Communications
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62671/jowim.v1i2.21

Abstract

Link budget is a way to calculate all parameters in signal transmission, ranging from gain and loss from the transmitter to the receiver via transmission media. This design is motivated by planning at PT. Alita Praya Mitra for site development in Kuranji region – University Andalas (UNAND) – Gunung Sarik with the reason to provide improved operator services, especially XL operator. In this final project to design using Pathloss 4.0 software as a tool that can facilitate a planner in calculating link budget. In this design the parameters used are propagation distance between sites, Effective Isotropic Received Power (EIRP), Free Space Loss (FSL), Isotropic Received Level (IRL), Received Signal Level (RSL) and Fade Margin (FM). On the calculation of the microwave transmission line of the kuranji area - University Andalas  with a propagation distance of 1.17 km, University Andalas - Gunung Sarik with a propagation distance of 1.01 km, Gunung Sarik – Kuranji with a propagation distance of 1.19 km.
Multiple Input Multiple Output Slot Antenna Design  With -22 Db Isolation Without Decoupling Structure For Application On Ultra Wide Band Nadilla Marselina; Uzma Septima; Amelia Yolanda; Yustini Yustini
International Journal of Wireless And Multimedia Communications Vol. 1 No. 2 (2024): International Journal of Wireless And Multimedia Communications
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62671/jowim.v1i2.53

Abstract

Technology that is always evolving requires us to always make the latest innovations, one of which is in the field of telecommunications. Currently, multiple input multiple output (MIMO) technology is widely used in ultra wideband (UWB) systems to overcome the effects of multipath fading. Multiple antennas are used to increase channel capacity. Two-element MIMO UWB systems have several techniques for obtaining good isolation between antenna elements. In this final project, the design and analysis of the change of a single UWB slot antenna into a 2-element MIMO UWB antenna is carried out by placing the antenna elements asymmetrically to get high antenna isolation. The proposed UWB MIMO antenna has a very compact size of 42×25 mm2. The fed slot microstrip antenna acts as a single UWB antenna element. Antenna design using CST Study Suite software. In the simulation results, a single UWB slot antenna that is modified into a UWB MIMO antenna has a return loss of -28 dB, a bandwidth of 7.2514 GHz, isolation below -20 dB, a VSWR of VSWR 2 in the frequency range of 3.7002 GHz to 9.6546 GHz, the gain reaches 3.2 dBi, and radiation pattern which is quasi omnidirectional.
Fabrication and Implementation of a Microstrip Antenna for Digital Television Reception at UHF Frequencies Putri Anjali; Yustini Yustini; Aprinal Adila Asril; Danda Maritsyah Putra
International Journal of Wireless And Multimedia Communications Vol. 2 No. 1 (2025): International Journal of Wireless And Multimedia Communications
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62671/jowim.v2i1.78

Abstract

Television broadcasting has evolved from analog to digital technology, utilizing digital modulation and compression to efficiently transmit video, audio, and data signals. Antennas play a crucial role in this technology, with microstrip antennas being particularly notable for their compact size, ease of fabrication, and suitability for integration with other telecommunications equipment. The fabricated antenna measures 200 x 235 mm. By optimizing the Destructure Patch Element and Defected Ground Structure techniques, along with the addition of an Inset Feed, a wider bandwidth can be achieved, allowing for the reception of more digital television channels. At its working frequency, the fabricated antenna achieved a return loss of -36.8 dB, a bandwidth of 218.46 MHz, and a frequency range of 481.83 MHz to 700.29 MHz. The measured Voltage Standing Wave Ratio (VSWR) was 1.02, with a gain of 2.11 dBi at 538 MHz, 2.12 dBi at 546 MHz, 2.27 dBi at 626 MHz, and 2.3 dBi at 642 MHz. The radiation pattern was omnidirectional. Using a Vector Network Analyzer, the fabricated antenna was measured to have a return loss of -18.37 dB and a VSWR of 1.27. Additionally, digital TV broadcast testing was conducted, successfully receiving a strong and clear signal.
Antenna Multiple Input Multiple Output Four Port Using Methods Stub and Defected Ground Structure for Ultra wide-band Applications Denisa Putri Maharani; Yustini Yustini
International Journal of Wireless And Multimedia Communications Vol. 2 No. 2 (2025): International Journal of Wireless And Multimedia Communications
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62671/jowim.v2i2.142

Abstract

Abstract— Multiple Input Multiple Output (MIMO) antennas using the Defected Ground Structure technique are able to produce wide bandwidth to meet Ultra Wide-Band (UWB) frequencies. UWB MIMO antennas have the advantages of reducing interference, improving isolation, and optimizing multipaths, thereby expanding coverage and improving signal quality. The challenge in designing MIMO-UWB antennas is to produce low mutual coupling with small antenna dimensions so that they can be used in portable devices. In this final project, the aim is to design a 4x4 UWB MIMO antenna using FR-4 substrate material with a dielectric constant (εr) of 4.3, a loss tangent of 0.035 and a material thickness of 1.6 mm. With dimensions of 45 x 45 x 1.6 ,mm-3. which has an Ultra-Wideband working frequency with a frequency range of 3.1 – 10.6 GHz. The results of the antenna simulation and measurement showed good performance with a simulated antenna operating frequency of 3.1–10.23 GHz, a minimum return loss of -49.85 dB, an isolation of ≤ -20 dB, and a maximum peak gain of 3.3 dBi at the frequency of 10.6 GHz with an omnidirectional radiation pattern. The measurement results show a working frequency of 3.2-10.64 GHz, a minimum return loss of -21.24 dB, and an Isolation of ≤ -20 dB. The designed four-port MIMO antenna parameters result in a simulated ECC and measurement < of 0.02 and a diversity gain of over 9.989, and a TARC of ≤ –10 dB. The measurement and simulation results show a good fit and are within the permissible limits, indicating good performance for UWB communication.    
ANALISIS PERAN TEKNOLOGI FTTH BERBASIS GPON DALAM MENDUKUNG TRANSFORMASI DIGITAL WILAYAH PEDESAAN Ramanda Grace Aulia; Amelia Yolanda; Yustini Yustini; Yulindon Yulindon
JURNAL ILMIAH PENELITIAN MAHASISWA Vol 4 No 2 (2026): Jurnal Ilmiah Penelitian Mahasiswa (JIPM) April 2026
Publisher : Kampus Akademik Publiser

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61722/jipm.v4i2.2328

Abstract

Transformasi digital menuntut ketersediaan infrastruktur broadband berkecepatan tinggi yang andal, namun kesenjangan akses di wilayah pedesaan masih menjadi kendala utama. Penelitian ini bertujuan untuk menganalisis peran teknologi Fiber to the Home (FTTH) berbasis Gigabit Passive Optical Network (GPON) dalam mendukung pemerataan akses broadband. Metode yang digunakan adalah Systematic Literature Review (SLR) terhadap publikasi ilmiah periode 2020–2025 dari berbagai database bereputasi. Hasil kajian menunjukkan bahwa FTTH-GPON mampu menyediakan kapasitas bandwidth tinggi, latensi rendah, serta kualitas layanan (QoS) yang stabil dengan parameter teknis seperti link power budget yang memenuhi standar. Selain itu, penggunaan arsitektur jaringan optik pasif meningkatkan efisiensi energi dan menurunkan biaya operasional. Dari sisi implementasi, ketersediaan jaringan broadband berbasis FTTH berkontribusi terhadap peningkatan akses layanan digital, termasuk pendidikan dan kesehatan, serta mendukung inklusi digital di wilayah pedesaan. Namun demikian, implementasi FTTH-GPON masih menghadapi keterbatasan infrastruktur serta belum terintegrasinya aspek teknis, ekonomi, dan sosial secara komprehensif. Oleh karena itu, diperlukan pendekatan integratif dalam perencanaan dan pengembangan jaringan FTTH berbasis GPON untuk mendukung transformasi digital yang berkelanjutan.
PERAN TEKNOLOGI FIBER OPTIK DALAM MENINGKATKAN QUALITY OF SERVICE PADA JARINGAN 5G: SEBUAH SYSTEMATIC LITERATURE REVIEW Muhammad Aqil Hisyam Akbar; Yustini Yustini; Amelia Yolanda; Yulindon Yulindon
JURNAL ILMIAH PENELITIAN MAHASISWA Vol 4 No 2 (2026): Jurnal Ilmiah Penelitian Mahasiswa (JIPM) April 2026
Publisher : Kampus Akademik Publiser

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61722/jipm.v4i2.2331

Abstract

Perkembangan jaringan komunikasi generasi kelima (5G) menuntut infrastruktur transmisi yang mampu memenuhi persyaratan Quality of Service (QoS) yang semakin kompleks, mencakup parameter latensi , throughput , packet loss , dan keandalan . Teknologi fiber optik telah diidentifikasi sebagai komponen infrastruktur yang fundamental dalam mendukung kinerja jaringan 5G, namun kajian yang secara komprehensif mengintegrasikan peran fiber optik terhadap seluruh parameter QoS dalam satu kerangka analisis yang terpadu masih sangat terbatas dalam literatur yang ada. Penelitian ini bertujuan untuk mengkaji secara sistematis peran teknologi fiber optik dalam meningkatkan QoS pada jaringan 5G melalui pendekatan Systematic Literature Review (SLR). Proses seleksi literatur dilakukan menggunakan panduan PRISMA 2020 terhadap artikel-artikel yang diterbitkan pada rentang tahun 2020–2026 dari basis data IEEE Xplore, ScienceDirect, SpringerLink, dan Google Scholar, menghasilkan 13 artikel terpilih dari 128 artikel yang diidentifikasi pada awal. Hasil sintesis literatur menunjukkan bahwa fiber optik berkontribusi secara signifikan terhadap peningkatan seluruh parameter QoS utama, yakni penurunan latency pada segmen backhaul dan fronthaul , peningkatan throughput akibat kapasitas bandwidth yang besar, penurunan packet loss karena stabilitas transmisi yang tinggi, serta peningkatan keandalan jaringan. Selain itu, integrasi antara fiber optik dan teknologi akses nirkabel dalam arsitektur Fixed Wireless Access (FWA) dan Cloud Radio Access Network (C-RAN) terbukti menghasilkan sinergi positif dalam meningkatkan efisiensi dan transmisi jaringan secara menyeluruh. Penelitian ini memberikan kontribusi berupa kerangka analisis integratif yang menghubungkan fiber optik dengan seluruh dimensi jaringan QoS 5G secara holistik, serta memberikan dampak praktis bagi operator telekomunikasi dan pemangku kepentingan dalam perencanaan infrastruktur jaringan nasional.  
Pemberdayaan Masyarakat Melalui Pelatihan Handycraft Berbasis Digital Popy Maria; Amelia Yolanda; Yustini Yustini; Zurnawita Zurnawita; Siska Aulia
JURNAL PENGABDIAN PEMBANGUNAN PERTANIAN DAN LINGKUNGAN (JP3L) Vol 2 No 1 (2024): JURNAL PENGABDIAN PEMBANGUNAN PERTANIAN DAN LINGKUNGAN (JP3L): Volume 2 Nomor 1,
Publisher : LEMBAGA KAJIAN PEMBANGUNAN PERTANIAN DAN LINGKUNGAN (LKPPL)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62671/jp3l.v2i1.56

Abstract

Badan Kontak Majelis Taklim (BKMT) merupakan induk majelis taklim se-Indonesia. BKMT berfungsi sebagai media pemberdayaan dan pengembangan pendidikan keagamaan baik bagi setiap anggota organisasi maupun bagi masyarakat dan bangsa secara keseluruhan. BKMT Kecamatan Padang Utara merupakan salah satu BKMT yang berada di Kota Padang. BKMT ini mewadahi bidang dakwah, pendidikan, sosial dan pemberdayaan ekonomi. Permasalahan yang muncul pada bidang pemberdayaan ekonomi  adalah masih terbatasnya keterampilan yang dimiliki oleh anggota, keterbatasan waktu untuk pelaksanaan kegiatan dan keterbatasan pengetahuan tentang bagaimana  mempromosikan produk yang telah dihasilkan. Solusi yang diberikan yaitu melakukan pelatihan handycraft berupa pembuatan beberapa aksesoris.  Agar produk yang dihasilkan dapat dipromosikan secara online maka tim PKM juga akan memberikan tips bagaimana caranya mengoptimalkan smartphone yang dimiliki untuk membuat foto/video produk dan menggunakan software desain grafis canva untuk mendesain sebuah poster. Sedangkan untuk keterbatasan waktu yang dimiliki oleh anggota untuk hadir dalam kegiatan pelatihan yang nantinya dilaksanakan tim PKM akan membuatkan video tutorial pembuatan handycraft. Pelaksanaan kegiatan dimulai dulu dengan paparan tentang adaptasi teknologi pada era digital. Dilanjutkan paparan informasi apasaja yang harus ada pada sebuah poster dan mendesain poster pada canva dengan menggunakan template yang telah tersedia. Kemudian dilanjutkan dengan membuat handycraft berupa bros dan tasbih. Karya yang telah dibuat difoto dan diedit dengan software canva yang hasilnya nanti dapat digunakan sebagai media promosi. Dengan kegiatan ini diharapkan permasalahan mitra dapat diatasi dan pemberdayaan masyarakat menjadi lebih baik.
Co-Authors - Zurnawita Abdi Abdillah Ade Usra Berli Ahmad Dahlan Amelia Yolanda Amelia Yolanda - Aprinal Adila Asril Aprinal Adila.A Arsis Warman Asri, Aprinal Adila Dahlan, A Ahmad Danda Maritsyah Putra Deddy Prayama Dedi Tri Laksono, Dedi Tri Denisa Putri Maharani Dikky Chandra Fadli Fadilah Islami Ferdiansyah Ferdiansyah Firdaus Firdaus Firmansyah, Herian Hadria Octavia Hadria Oktavia Herry Setiawan Herry Setiawan Ifni Joi Lifwarda Lifwarda Maria, Popi Marisa Cania Meilisa, Mira Muchtara, Efendi Muhammad Aqil Hisyam Akbar Nadilla Marselina Nasrul Nasrul Nasrul Nindika, Aprilia Nugraha, Bintang Aulia Popy Maria Popy Maria Popy Maria Putri Anjali Putri Azizah Herwita Rahmatullah Hafizt Ramadan, Zardi Ramanda Grace Aulia Randhika Rianza Roza Susanti Sahid Ridho Silfia Rifka Siska Aulia Siska Aulia Uzma Septima Uzma Septima - Widiansyah, Iqwan Wiwik Wiharti Yulindon Zurnawita Zurnawita