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All Journal Jurnal Ilmiah Poli Rekayasa Elektron Jurnal Ilmiah Jurnal Informatika dan Teknik Elektro Terapan Sinkron : Jurnal dan Penelitian Teknik Informatika Brilliance: Research of Artificial Intelligence International Journal of Advanced Science Computing and Engineering JATAED: Journal of Appropriate Technology for Agriculture, Environment, and Development JURNAL PENGABDIAN PEMBANGUNAN PERTANIAN DAN LINGKUNGAN (JP3L) JAPEPAM, Jurnal Pengabdian kepada Masyarakat
Uzma Septima
Jurusan Teknik Elektro Politeknik Negeri Padang
Agriculture, Biological Sciences & Forestry 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 Mathematics Mechanical Engineering Social Sciences Other

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2.3 Ghz Lte Antenna Design Using Triangle Geometry and Array Structure Septima, Uzma; Yulindon; Setiawan, Herry; 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.
Analysis of 2G and 4G Network Quality in Solok City Septima, Uzma; Candra, Dikky; Vitria, Rikki; Alfarezi, Muhammad; Yolanda, Amelia
Brilliance: Research of Artificial Intelligence Vol. 4 No. 1 (2024): Brilliance: Research of Artificial Intelligence, Article Research May 2024
Publisher : Yayasan Cita Cendekiawan Al Khwarizmi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/brilliance.v4i1.3870

Abstract

Gunung Talang, Twin Lake, Gumanti Valley, Hiliran Gumanti and Pantai Cermin sub-districts in Solok Regency, which are dominated by hills and trees, are the cause of unstable signal quality, causing complaints from the public regarding this. So this study is to determine the network quality in Gunung Talang District, Twin Lakes, Gumanti Valley, Hiliran Gumanti, and Pantai Cermin on Telkomsel, XL and Indosat Operators. Checking is carried out using the drive test method  using TEMS Pocket on 2G and 4G networks. The quality of the 2G network from the measurement results was obtained for RxLevel all operators was bad and for RxQual was good except for Telkomsel operators.Meanwhile,on the 4G network, measurement results for RSRP and SINR for all operators are bad. Some areas that have problems are recommended for optimization, site passenger  and site addition. All of this happens because  of obstacles in the form of hills, cliffs, and tall trees at some point. From the results of the study, the quality of the Telkomsel operator's 4G network has an RSRP value of 46.16% and SINR of 61.06%. XL operators have an RSRP value of 42.7% and SINR which is 60.74%.Meanwhile, Indosat Ooredoo has an RSRP value of 43.2% and SINR of 74.6%. As for the 2G network, the quality of Telkomsel's 2G network operator has an RxLevel value of 47.8% and RxQual of 89.49%. XL operators have an RxLevel value of 58.34% and RxQual of 77.62%.Meanwhile,Indosat Ooredoo has an RxLevel value of 46.16% and RxQual is 80.56%.
Pelatihan Pembuatan Robot Kendali Nirkabel Bagi Siswa SMAN 1 Lembang Jaya Kabupaten Solok Firdaus, Firdaus; Septima, Uzma; Nasrul, Nasrul; Dewi, Ratna
JAPEPAM, Jurnal Pengabdian kepada Masyarakat Vol. 3 No. 1 (2024): JAPEPAM
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat

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Abstract

Kegiatan pengabdian di SMAN 1 Lembang Jaya Kabupaten Solok bekerja sama dengan Politeknik Negeri Padang dilakukan sebagai kegiatan pelatihan pembuatan dan pembinaan kepada guru dan siswa agar unit program robotik dapat terbentuk. Kegiatan ini akan berdampak pada pengembangan siswa untuk melakukan kegiatan ekstra kurikuler bidang Robotik serta nantinya dapat memfasilitasi siswa-siswi SMAN 1 Lembang Jaya Kabupaten Solok. Dan kedepannya bagi siswa SMAN 1 Lembang Jaya Kabupaten Solok dapat ikut ambil bagian dalam agenda tahunan lomba science bidang TIK khususnya bidang robotik. unit program robotik sebagai salah satu ekstrakulikuler siswa sehingga akan muncul kreatifitas-kreatifitas baru baik dari guru maupun siswa. Pihak SMAN 1 Lembang Jaya berterima kasih sekaligus memberikan apresiasi kepada PNP karena telah membantu menambah keterampilan siswa. Selain itu SMAN 1 Lembang Jaya berharap kerjasama yang berkesinambunagn dengan PNP tetap terjalin dalam inovasi teknologi khususnya di bidang pendidikan.
ANALISIS REDAMAN KABEL PADA PERANGKAT ODC DAN ODP DALAM MODUL TRAINER JARINGAN FIBER TO THE HOME Armenda, Annisa; Septima, Uzma; Yolanda, Amelia; Adila Asril , Aprinal; Adrian, Fachri
Jurnal Informatika dan Teknik Elektro Terapan Vol. 13 No. 3S1 (2025)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jitet.v13i3S1.8052

Abstract

Fiber to the Home (FTTH) is an optical fiber-based communication technology with high bandwidth capacity and low interference, making it the main choice for telecommunication network development. This study aims to analyze cable attenuation under various cable conditions in the FTTH trainer module. The research method involves designing an FTTH network using Optisystem and measuring cable attenuation under normal conditions, broken core, one splice, and two splices. The Optisystem simulation produced received power levels of -8.992 dBm (1310 nm) and -8.920 dBm (1550 nm), which correspond well with direct measurements on the trainer module. Measurements showed that normal cable attenuation was around 14 dB, cables with broken cores exceeded 50 dB, one splice added 0.2 dB, and two splices added 03–0.5 dB. The results indicate that splices in optical cables contribute to an increase in attenuation.
Antipodal Vivaldi Array Antenna for LoRa: A Simulation Study within 900–923 MHz Band Deri Latika Herda; Amelia Yolanda; Gardinia Naz Surya; Uzma Septima; Popy Maria
Brilliance: Research of Artificial Intelligence Vol. 5 No. 2 (2025): Brilliance: Research of Artificial Intelligence, Article Research November 2025
Publisher : Yayasan Cita Cendekiawan Al Khwarizmi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/brilliance.v5i2.7013

Abstract

LoRa (Long Range) is a wireless communication technology that has gained significant attention in the Internet of Things (IoT) due to its wide coverage and low power consumption. However, its performance is often affected by environmental obstacles that cause signal attenuation and interference. In Indonesia, LoRa is regulated to operate in the 920–923 MHz band, whereas many commercial devices are designed for 915 MHz, leading to suboptimal antenna performance. Therefore, this research aims to design and simulate an antenna that can operate effectively across 900–923 MHz, covering both the commonly used 915 MHz band and the regulated 920–923 MHz band in Indonesia. The proposed design is a 1×2 Antipodal Vivaldi Array antenna using an FR-4 substrate with a dielectric constant of 4.3 and thickness of 1.6 mm. The simulation process was conducted using CST Studio Suite 2019, focusing on the optimization of key geometric parameters such as feedline width, inter-element spacing, flare structure, and ground plane. The simulated results show that the antenna achieves a return loss of –19.11 dB at 923 MHz, a bandwidth of 344.4 MHz, and a gain ranging from 5.103 dBi at 900 MHz to 5.162 dBi at 923 MHz. The radiation pattern is directional, which supports long-range communication requirements. These findings demonstrate that the proposed antenna design meets the specifications for LoRa communication and provides a wideband, directional solution that can enhance the reliability of IoT systems.
Co-Authors Adila Asril , Aprinal Adrian, Fachri afifi, muthia Alfarezi, Muhammad Amelia Yolanda Amelia Yolanda Andrian, Kelvin Aprinal Adila Asril Armenda, Annisa Berliana Syafira , Gerin Candra, Dikky Deri Latika Herda Firdaus Firdaus Firdaus Gardinia Naz Surya Herda, Deri Latika Herry Setiawan Nasrul Nasrul Nasrul Nasrul Nindika, Aprilia Popy Maria Popy Maria Putra Ramiati Ratna Dewi Rikki Vitria Roni Saputra, Roni Suci Ramadhani, Suci Uliana, Rafika Uzhelia, Viorryn Aisha Yuhanef , Afrizal Yulindon Yustini Zurnawita Zurnawita