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All Journal Jurnal Ilmiah Dinamika Rekayasa (DINAREK) Proceeding of the Electrical Engineering Computer Science and Informatics Seminar Nasional Teknologi Informasi Komunikasi dan Industri Techne : Jurnal Ilmiah Elektroteknika Jurnal Teknik Jurnal Teknologi Terapan Reswara: Jurnal Pengabdian Kepada Masyarakat Jurnal Bakti Masyarakat Indonesia Jurnal Ilmiah Teknik Elektro
Kurnia Ningsih, Yuli
Electrical Engineering Department Faculty Of Industrial Technology Universitas Trisakti
Religion Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Social Sciences Other

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Compact Fractal Patch Microstrip Antenna Fed by Coplanar Waveguide for Long Term Evolution Communications Indra Surjati; Yuli Kurnia Ningsih; Syah Alam
Proceeding of the Electrical Engineering Computer Science and Informatics Vol 4: EECSI 2017
Publisher : IAES Indonesia Section

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (702.162 KB) | DOI: 10.11591/eecsi.v4.1100

Abstract

This paper proposes a new design of compact fractal patch microstrip antenna fed by coplanar waveguide to reduce the antenna dimension and to increase its bandwidth for Long Term Evolution application purposes. The results shown return loss of -23.45 dB and VSWR 1.144 can be achieved by controlling the height and the width of the fractal patch dimension.  Bandwidth of the proposed antenna is 375 MHz which is equal to an increase of 200% compared to the conventional rectangular patch antenna and also the dimension of fractal patch antenna can be reduced until 66%.
Implementasi RT/RW-Net Menggunakan Metode User dan Bandwidth Management Yuli Kurnia Ningsih; Yusuf Saeful Rochman; Nazmia Kurniawati
Jurnal Teknik: Media Pengembangan Ilmu dan Aplikasi Teknik Vol 19 No 2 (2020): 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: 10.26874/jt.vol19no02.305

Abstract

In this paper RT / RW-Net has been designed and realized as a system to access the internet network. The system was built using the Mikrotik Router as an operating system, access point as a network distributor, and an omnidirectional antenna as transmitter and receiver of Wi-Fi signals. The user manager feature on the proxy plays a role in managing several functions such as bandwidth limitation and quota limitation. Quotas and grace periods can be made according to customer requests. The network is tested when the customer is connected to the RT / RW-Net hotspot automatically on the customer's device the RT / RW-Net page will appear to enter the username and password that has been given by the administrator. The system is tested by measuring the RSSI value (Receive Signal Strength Indicator) to determine signal quality based on applicable standards. Based on the test results, the lowest RSSI value is -65 dBm at a distance of 280m to the west with a note that there is no obstacle in the omnidirectional antenna to the customer's device. This system can also inform the remaining quota status and active period to the customer on the RT / RW-Net homepage.
RANCANG BANGUN JARINGAN WI-FI UNTUK KOMUNIKASI DARING DI DESA TENJOLAYA Yuli Kurnia Ningsih; Nazmia Kurniawati
Jurnal Teknologi Terapan Vol 6, No 2 (2020): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v6i2.281

Abstract

The availability of telecommunication infrastructure affects the development of an area, especially areas that have the potential for tourism and agricultural products such as Tenjolaya Village. The development of RT RW net as internet network infrastructure using Wi-Fi technology can be a supporting sector for the economic development of the village. Network deployment is carried out in three stages: preparation, construction and measurement. In the preparation stage, the number of users is calculated and a survey of the installation location is carried out. Furthermore, network development is carried out based on the network architecture that has been designed with CPE totaling four points. In the final stage, four parameters are measured to check the network conditions. The parameters are throughput, signal strength, CCQ, and SNR. From the measurement results, the measured throughput at the access point has a value range of 17 to 30 dBm. The measured Tx signal strength has a value of -75 to -39 dBm while the Rx signal strength is between -72 to -37 dBm. The CCQ value is between 76 and 100%. The measured SNR parameter has a value of 38 to 77 dBm.
Dual Frequency Microstrip Antenna Fed by Electromagnetic Coupling For Satellite Application Indra Surjati Surjati; Yuli Kurnia Ningsih; Benny Reinmart
Seminar Nasional Teknologi Informasi Komunikasi dan Industri 2011: SNTIKI 3
Publisher : UIN Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (570.8 KB)

Abstract

Recently, the most popular technique for obtaining dual frequency operation is by introducing a reactive loading to a single patch antenna. This paper proposed a design of dual frequency operation microstrip antenna without using a reactive loading to a single patch antenna. The proposed antenna fed by microstrip feed line and the two resonant frequencies can be generated by controlling the length of the patch antenna and also by adjusting the position and the length of the microstrip feed line. The proposed antenna was designed to be able to work on two different frequencies for Satellite apllication which is at 3.702 GHz up to 4.198 GHz for downlink frequency and at 5.927 GHz up to 6.423 GHz for uplink frequency. The results shown that the first frequency is at 3.9 GHz with return loss of -27.84 dB, VSWR 1.085 and impedance bandwidth 416 MHz or about 83.8%. The second frequency is at 6 GHz with return loss of -18.43 dB, VSWR 1.272 and impedance bandwidth 385 MHz or about 77.6%.Keywords: Dual frequency, rectangular microstrip antenna, electromagnetic coupling, satellite.
PELATIHAN PENGGUNAAN APLIKASI VIRTUAL LEARNING DI TPA ZIYAADATUL HASANAH Nazmia Kurniawati; Henry Candra; Yuli Kurnia Ningsih; Alfred Pakpahan; Tri Swasono Adi
Jurnal Bakti Masyarakat Indonesia Vol 5, No 1 (2022): Jurnal Bakti Masyarakat Indonesia
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jbmi.v4i1.17390

Abstract

Since the outbreak of the Corona Virus Disease (Covid-19) case in March 2020, the government issued a policy to conduct distance learning. Conditions that require learning activities to be carried out online caused the children to to use applications to carry out learning activities. One of the obstacles in implementing distance learning activities is the lack of technology mastery by parents and children. This causes children to have difficulty in learning the material provided by the school. In this activity, training was conducted to use virtual learning applications as learning media with the target of active parents and students in TPA Ziyaadatul Hasanah, Duren Sawit. With this training, it is hoped that parents and students can use virtual learning applications. So that parents can guide their sons and daughters in conducting distance learning activity and students are not left behind due to internet connection problems. From the results of the questionnaire given to participants to measure understanding of the training, participants gained increased knowledge about virtual learning applications as proofed by the increase in scores obtained from the pre-test and post-test results. In the pre-test the average score obtained by the participants was 8.3 while in the post-test the average score was 9.45 out of a scale of 10. In terms of satisfaction, the average score given by the participants was in the range of 4.1 to 4.75 and belongs to the very good range. Based on the results of discussions with participants, participants expected that there would be further activities related to their problems to be provided by the community service team.ABSTRAKSejak merebaknya kasus Corona Virus Disease (Covid-19) pada bulan Maret 2020, pemerintah mengeluarkan kebijakan untuk melakukan pembelajaran secara jarak jauh (PJJ). Kondisi yang mengharuskan kegiatan pembelajaran dilakukan secara daring menyebabkan anak-anak harus menggunakan aplikasi untuk melakukan kegiatan pembelajaran. Salah satu kendala dalam pelaksanaan kegiatan PJJ adalah kurangnya penguasaan teknologi oleh orang tua dan anak. Hal tersebut menyebabkan anak-anak kesulitan dalam mempelajari materi yang diberikan. Pada kegiatan ini dilakukan pelatihan penggunaan aplikasi virtual learning sebagai media pembelajaran dengan sasaran orang tua dan siswa yang aktif di TPA Ziyaadatul Hasanah, Duren Sawit. Dengan adanya pelatihan ini diharapkan orang tua dan siswa dapat menggunakan aplikasi virtual learning. Sehingga orang tua  dapat membimbing putra putrinya dalam PJJ dan siswa tidak tertinggal materi karena masalah koneksi internet. Dari hasil kuesioner yang diberikan kepada peserta untuk mengukur pemahaman terhadap pelatihan yang diberikan, peserta mendapatkan peningkatan pengetahuan mengenai aplikasi virtual learning yang dibuktikan dengan peningkatan nilai yang didapatkan dari hasil pre-test dan post-test. Pada pre-test nilai rata-rata yang didapatkan peserta adalah 8.3 sedangkan pada post-test rata-rata nilainya adalah 9.45 dari skala 10. Sementara dari sisi kepuasan, rata-rata skor yang diberikan oleh peserta berada pada rentang 4.1 hingga 4.75 dan termasuk ke dalam rentang sangat baik. Berdasarkan hasil diskusi dengan peserta, warga mengharapkan adanya kegiatan lanjutan dari pelatihan virtual learning yang dilakukan pada periode PkM ini.
Perancangan Antena Mikrostrip Array Multiple Input Multiple Output (MIMO) 4 Elemen Dengan Slits dan Slots Fahrul Solehudin; Yuli Kurnia Ningsih; Syah Alam
Dinamika Rekayasa Vol 18, No 2 (2022): Jurnal Ilmiah Dinamika Rekayasa - Agustus 2022
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2022.18.2.488

Abstract

Penelitian ini mengusulkan perancangan dan simulasi antena mikrostrip dengan metode array Multiple Input Multiple Output (MIMO) dengan 4 elemen dengan penambahan slits dan slots pada frekuensi kerja 3,5 GHz. Bahan substrat yang digunakan pada perancangan adalah RT-Duroid R5880, Duroid R5880 memiliki permitivitas, (ɛr) sebesar 2,2, loss tangent 0,0009 dan ketebalan (h) 1,57 mm. Dengan penambahan metode slits dan slots berhasil mereduksi nilai return loss sebesar 61 % dibandigkan dengan antena single element. Pada perancangan antena array 2x1 elemen didapatkan nilai return loss sebesar -36 dB, bandwidth sebesar 220 MHz, gain sebesar 7,9 dB. Hasil desain yang paling optimal pada perancangan antena mikrostrip dengan metode Multiple Input Multiple Output (MIMO) 4 elemen didapatkan nilai return loss sebesar -27 dB, bandwidth sebesar 220 MHz, gain sebesar 10,5 dB, mutual coupling sebesar -70 dB dan pola radiasi directional. Penerapan metode array MIMO 4 elemen berhasil meningkatkan performansi antena yaitu gain 53%, bandwidth 31,8%, dan memiliki pola radiasi yang lebih terarah dibandingkan dengan antena single element dan dapat direkomendasikan sebagai antena penerima pada sistem komunikasi 5G
UJI COBA PENGIRIMAN DATA JARAK DEKAT DENGAN MENGGUNAKAN RADIO KOMUNIKASI HF Yuli Kurnia Ningsih; Suhartati Agoes; Tony Winata
Jetri : Jurnal Ilmiah Teknik Elektro Jetri Volume 13, Nomor 1, Agustus 2015
Publisher : Website

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (329.142 KB) | DOI: 10.25105/jetri.v13i1.569

Abstract

This paper presents the test result of the data transmission using Differential Phase Shift Keying (DPSK) modulation technique via High Frequency (HF) radio communication. Experiment was done in the laboratory of telecommunication with the distance betweentransmitter and receiver as far as 5 m. The size of the files used by 3kb, with the observation time in the morning at 8:00 to 09:00 am, in the daytime at 12:00 to 13:00 and in the afternoon at 15:00 to 16:00 pm. From the results obtained, the process of sending the data has been successfully received directly with a delivery delay time of 5-10 seconds and still contaminated by noise. Data transmission in the mornings and afternoons relatively cleaner compared to daytime.Makalah ini membahas uji coba pengiriman data menggunakan teknik modulasi Differential Phase Shift Keying (DPSK) melalui radio komunikasi High Frequency (HF). Percobaan dilakukan di dalam Laboratorium Telekomunikasi dengan jarak antara pengirim danpenerima sejauh 5 m. Ukuran file yang digunakan sebesar 3kb, dengan waktu pengamatan pada pagi hari antara jam 08.00 – 09.00, siang antara jam 12.00 – 13.00 dan sore hari antara jam 15.00 – 16.00 WIB. Dari hasil yang diperoleh, proses pengiriman data telah berhasil diterima secara langsung dengan jeda waktu pengiriman 5-10 detik dan masih disertai dengan noise. Pengiriman data yang dilakukan pada pagi hari dan sore hari relatif lebih bersih dibandingkan pada siang hari. 
Perancangan dan Analisis Sistem Pemantauan Konservasi dan Efisiensi Energi Berbasis Internet of Things Dianing Novita Nurmala Putri; Anggy Pradiftha Junfithrana; Maula Sukma Widjaya; Yuli Kurnia Ningsih; Dimas Okky Anggriawa
Jetri : Jurnal Ilmiah Teknik Elektro Jetri, Volume 18, Nomor 2, Februari 2021
Publisher : Website

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (815.257 KB) | DOI: 10.25105/jetri.v18i2.7469

Abstract

The need of electricity energy is inevitable. However, most of the power plants in Indonesia still use fossil energy. Unfortunately this can lead to environmental pollution such as air pollution. Thus, energy conservation and efficiency are very important to do. This is evident in presidential regulation no.22 of 2017 which states that conservation is the responsibility of all levels of society. By reducing the consumption of electrical energy, it can reduce the use of electric resources and reduce pollution. This research is a preliminary research that uses IoT energy monitoring tools to be able to monitor the use of Web-based household electrical energy and Android applications. The prototype was made using the Ardunio Uno R3 AT Mega and the PZEM-004T Voltage Current Sensor which is connected to the website and Android application. After the sensor reads the current and voltage, the consumption of electrical energy can be calculated using the formula listed in Government Regulation No.28 of 2016, then the calculation results are displayed in graphical form on the website and android application. The test is carried out by directly connecting the electronic equipment to be measured to an Arduino device which is equipped with an electrical contact.  Kebutuhan masyarakat akan energi listrik menjadi suatu hal yang tak terelekan. Namun, sebagian besar pembangkit listrik di Indonesia masih menggunakan energi fosil. Sayangnya hal ini dapat memicu pencemaran lingkungan seperti polusi udara. Sehingga, konservasi dan efisiensi energi sangat penting untuk dilakukan. Terbukti pada peraturan presiden no.22 tahun 2017 yang menyebutkan bahwa konservasi merupakan tanggungjawab seluruh lapisan masyarakat. Dengan berkurangnya konsumsi energi listrik, dapat menurunkan peggunaan sumber daya listrik dan mengurangi polusi. Penelitian ini merupakan penelitian awal yang menggunakan alat monitoring energi IoT untuk dapat memantau penggunaan energi listrik rumah tangga berbasis Web dan aplikasi Android. Protptipe dibuat dengan menggunakan Ardunio Uno R3 AT Mega dan Sensor Arus Tegangan PZEM-004T yang di hubungkan dengan website dan aplikasi Android. Setelah sensor membaca arus dan tegangan, konsumsi energi listrik dapat dihitung menggunakan rumus yang tercantum pada Peraturan Pemerintah No.28 Tahun 2016, kemudian hasil perhitungan ditampilkan dalam bentuk grafik pada website dan aplikasi android. Pengujian dilakukan dengan menghubungkan langsung peralatan elektronik yang akan diukur ke perangkat arduino yang sudah dilengkapi dengan kontak listrik. Hasilnya meng
PELATIHAN PENGGUNAAN APLIKASI VIRTUAL LEARNING DI TPA ZIYAADATUL HASANAH Nazmia Kurniawati; Henry Candra; Yuli Kurnia Ningsih; Alfred Pakpahan; Tri Swasono Adi
Jurnal Bakti Masyarakat Indonesia Vol. 5 No. 1 (2022): Jurnal Bakti Masyarakat Indonesia
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jbmi.v4i1.17390

Abstract

Since the outbreak of the Corona Virus Disease (Covid-19) case in March 2020, the government issued a policy to conduct distance learning. Conditions that require learning activities to be carried out online caused the children to to use applications to carry out learning activities. One of the obstacles in implementing distance learning activities is the lack of technology mastery by parents and children. This causes children to have difficulty in learning the material provided by the school. In this activity, training was conducted to use virtual learning applications as learning media with the target of active parents and students in TPA Ziyaadatul Hasanah, Duren Sawit. With this training, it is hoped that parents and students can use virtual learning applications. So that parents can guide their sons and daughters in conducting distance learning activity and students are not left behind due to internet connection problems. From the results of the questionnaire given to participants to measure understanding of the training, participants gained increased knowledge about virtual learning applications as proofed by the increase in scores obtained from the pre-test and post-test results. In the pre-test the average score obtained by the participants was 8.3 while in the post-test the average score was 9.45 out of a scale of 10. In terms of satisfaction, the average score given by the participants was in the range of 4.1 to 4.75 and belongs to the very good range. Based on the results of discussions with participants, participants expected that there would be further activities related to their problems to be provided by the community service team.ABSTRAKSejak merebaknya kasus Corona Virus Disease (Covid-19) pada bulan Maret 2020, pemerintah mengeluarkan kebijakan untuk melakukan pembelajaran secara jarak jauh (PJJ). Kondisi yang mengharuskan kegiatan pembelajaran dilakukan secara daring menyebabkan anak-anak harus menggunakan aplikasi untuk melakukan kegiatan pembelajaran. Salah satu kendala dalam pelaksanaan kegiatan PJJ adalah kurangnya penguasaan teknologi oleh orang tua dan anak. Hal tersebut menyebabkan anak-anak kesulitan dalam mempelajari materi yang diberikan. Pada kegiatan ini dilakukan pelatihan penggunaan aplikasi virtual learning sebagai media pembelajaran dengan sasaran orang tua dan siswa yang aktif di TPA Ziyaadatul Hasanah, Duren Sawit. Dengan adanya pelatihan ini diharapkan orang tua dan siswa dapat menggunakan aplikasi virtual learning. Sehingga orang tua  dapat membimbing putra putrinya dalam PJJ dan siswa tidak tertinggal materi karena masalah koneksi internet. Dari hasil kuesioner yang diberikan kepada peserta untuk mengukur pemahaman terhadap pelatihan yang diberikan, peserta mendapatkan peningkatan pengetahuan mengenai aplikasi virtual learning yang dibuktikan dengan peningkatan nilai yang didapatkan dari hasil pre-test dan post-test. Pada pre-test nilai rata-rata yang didapatkan peserta adalah 8.3 sedangkan pada post-test rata-rata nilainya adalah 9.45 dari skala 10. Sementara dari sisi kepuasan, rata-rata skor yang diberikan oleh peserta berada pada rentang 4.1 hingga 4.75 dan termasuk ke dalam rentang sangat baik. Berdasarkan hasil diskusi dengan peserta, warga mengharapkan adanya kegiatan lanjutan dari pelatihan virtual learning yang dilakukan pada periode PkM ini.
Perancangan Antena Mikrostrip Circular Patch dengan Inset-Feed dan Array pada Frekuensi 3.5 GHz untuk Sistem Komunikasi 5G Agam Yudi Putranto; Syah Alam; Indra Surjati; Yuli Kurnia Ningsih; Lydia Sari; Permana Andi Paristiawan
Techné : Jurnal Ilmiah Elektroteknika Vol. 22 No. 1 (2023)
Publisher : Fakultas Teknik Elektronika dan Komputer Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31358/techne.v22i1.353

Abstract

Penelitian ini mengusulkan rancangan suatu antena yang bekerja pada frekuensi 3.5 GHz yang digunakan untuk sistem komunikasi generasi kelima. Antena dirancang dengan substrat Duroid RO5880 yang memiliki spesifikasi konstanta dielektrik = 2.2, ketebalan substrat = 1.58 mm, dan loss tangent senilai 0,0009. Substrat duroid RO5880 dipilih karena memiliki nilai konstanta dielektrik yang kecil, sehingga losses antena dapat dikurangi. Antena yang dirancang memiliki gain yang tinggi dan pola radiasi yang terarah dengan metode inset feed dan metode array. Antena yang telah ditambahkan dengan metode inset feed dan metode array memiliki luas substrat sebesar 16.2 cm2, return loss -38.96 dB, VSWR 1.18, dan gain 13.03 dB pada frekuensi 3.5 GHz. Setelah menggunakan metode inset feed, nilai return loss berhasil tereduksi hingga 95.48%, mengalami kenaikan bandwidth hingga 4.06% dan dengan menggunakan metode array nilai gain mengalami peningkatan hingga 95.93% dibandingkan dengan antena elemen tunggal. Penelitian ini dapat dijadikan rekomendasi untuk disain antena penerima pada sistem komunikasi 5G.
Co-Authors Agam Yudi Putranto Alam, Syah Alfred Pakpahan Anggy Pradiftha Junfithrana Benny Reinmart Dianing Novita Nurmala Putri Dimas Okky Anggriawa Fahrul Solehudin Henry Candra Indra Surjati Indra Surjati Surjati Kurniawati, Nazmia Lydia Sari Maula Sukma Widjaya Muhammad Ilham Permana Andi Paristiawan Pudji Astuti Simon Jansen Saragi Suhartati Agoes Surjati, Indra Syah Alam Syah Alam Tony Winata Tri swasono adi Yusuf Saeful Rochman