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All Journal Perfecting a Video Game with Game Metrics Jurnal Teknologi Elektro Proceeding of the Electrical Engineering Computer Science and Informatics JOURNAL OF INFORMATICS AND TELECOMMUNICATION ENGINEERING Jurnal Nasional Teknik Elektro dan Teknologi Informasi
Muslim Muslim
Universitas Mercu Buana
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering

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Lowpass Filter with Hilbert Curve Ring and Sierpinski Carpet DGS Dian Widi Astuti; Intan Wahyuni; Muslim Muslim; Mudrik Alaydrus
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 16, No 3: June 2018
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v16i3.7722

Abstract

Good performance and compact size are the paramaters which are vital when desiging a filter. One of the creteria of good performance is selectivity. This research, conducted by Hilbert Curve Ring and Siepinski Carpet, is used as defected ground structure to overcome filter selectivity. By using three cascadeds Hilbert Curve Ring defected ground structure cells and three steps Sierpinski carpet, a lowpass filter is designed and fabricated. The measurement result for lowpass filterwith Hilbert Curve Ring defected ground structure has sharper selectivity with the cut off frequency at 2.173 GHz and the insertion loss value is 2.135 dB. While the measurement result for three steps Sierpinski carpet has the cut off frequency at 1.728 GHz and the insertion loss value is 0.682 dB.
Design of 2x2 Wide Bandwidth MIMO Antenna For LTE And 5G Sub-6GHz Dian Rusdiyanto; Dian Widi Astuti; Muslim Muslim; Syah Alam; Yohanes Galih Adhiyoga
JOURNAL OF INFORMATICS AND TELECOMMUNICATION ENGINEERING Vol 5, No 2 (2022): Issues January 2022
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jite.v5i2.5699

Abstract

In this study, the design of a 2X2 MIMO microstrip antenna was proposed for LTE and 5G Sub-6GHz applications. The antenna is designed to have a wide bandwidth operating in the frequency range of 2300 MHz to 3600 MHz. The antenna material uses FR4 substrate which has a dielectric constant of 4.6 and a thickness of 1.6 mm. To achieve a wide bandwidth, the ground length is cut. Meanwhile, to achieve the resonant frequency using the square slot method on the radiator element. Antenna design begins with designing a single element shape, then designing a 2x2 MIMO antenna. The results of the MIMO2x2 antenna simulation show that the reflection coefficient and isolation coefficient of each antenna are below -10 dB. The results of the reflection coefficient of each antenna show that the bandwidth achieved is more than 2 GHz. At a frequency of 2300 MHz, the lowest gain is 2.98 dBi, while the highest gain is 3.10 dBi. The lowest and highest gains at a frequency of 3600 MHz are 3.83 dBi and 3.87 dBi. Overall, this antenna has achieved the desired goal, which is to have a wide bandwidth and be able to operate on LTE and 5G applications.
Analisa Gangguan Rele Differential Busbar di GISTET 500 kV Durikosambi Jakarta Barat Miftahul Khoiri; Muslim Muslim
Jurnal Teknologi Elektro Vol 11, No 2 (2020)
Publisher : Electrical Engineering, Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/jte.2020.v11i2.002

Abstract

Tenaga listrik merupakan salah satu sumber energi yang sangat penting untuk kelangsungan hidup manusia. Keandalan sistem tenaga listrik akan menjadi prioritas utama dalam sistem penyaluran tenaga listrik dari pembangkit menuju konsumen. Gardu induk merupakan salah satu sub sistem penyaluran tenaga listrik dari tegangan ekstra tinggi menuju tegangan rendah yang kemudian disalurkan ke konsumen. Busbar merupakan bagian utama pada instalasi di Gardu Induk yang berfungsi sebagai titik pertemuan peralatan-peralatan listrik lainnya untuk menerima dan menyalurkan tenaga listrik atau daya listrik. Untuk memenuhi keandalan sistem pada Gardu Induk, tentunya pada busbar memiliki pengaman atau sistem proteksi dari gangguan. Rele proteksi busbar bekerja berdasarkan prinsip rele differential dimana membandingkan arus yang masuk dan arus keluar pada CT1 terhadap CT2. Di GISTET 500 kV Durikosambi menggunakan sistem double busbar dengan konfigurasi satu setengah PMT (3 PMT). Gangguan pada GISTET 500 kV Durikosambi terjadi pada saat manuver pemberian tegangan IBT 2 yang terhubung dengan beban sistem 500/150 kV. Gangguan terbaca fasa ke tanah yang mengakibatkan rele differential busbar bekerja. Dari hasil Analisa, rele differential busbar bekerja dikarenakan adanya pembacaan arus yang tidak seimbang sehingga mengakibatkan trip Busbar A yang terhubung dengan IBT 2
Substrate Integrated Waveguide Bandpass Filter with Complementary Split Ring Resonator at 2.45 GHz Dian Widi Astuti; Sis Yasin Darmanik; Muslim Muslim; Mudrik Alaydrus
Proceeding of the Electrical Engineering Computer Science and Informatics Vol 5: EECSI 2018
Publisher : IAES Indonesia Section

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (344.556 KB) | DOI: 10.11591/eecsi.v5.1625

Abstract

Interferences between two applications should be avoided by using a filter. At present, the miniaturized filter is one of the requirement besides good quality and low insertion loss. The sixteenth-mode substrate integrated waveguide (SMSIW) is proposed by using a complementary split-ring resonator (CSRR) to fulfill miniaturized of filter. The filter design used two of sixteenth-mode SIW (SMSIW) that reduced 15/16 of the circular regular SIW. The frequency center filter design is at 2.5 GHz. The simulation result shows insertion loss value at 0.2 dB and return loss value at 29 dB, while for the measurement result gives insertion loss value at 0.7 dB and return loss value at more than 15 dB. It shows the measurement results give good value with the simulation results.
Antena Mikrostrip dengan Dua Buah U-Slot untuk Aplikasi Wi-Fi dan 5G Dian Widi Astuti; Alya Patrakomala; Muslim Muslim; Said Attamimi; Dwi Astuti Cahyasiwi
Jurnal Nasional Teknik Elektro dan Teknologi Informasi Vol 11 No 4: November 2022
Publisher : Departemen Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jnteti.v11i4.4101

Abstract

The development of telecommunications on wireless networks is advancing very rapidly. This rapid development is caused by the need for rapid information accessible from anywhere. One of the devices on the wireless network telecommunications system is an antenna. Antennas that can work on multiple wireless network frequencies on telecommunications system devices are indispensable. Therefore, this study proposes the design of a microstrip antenna capable of simultaneously working on two wireless network frequencies, namely Wi-Fi and fifth-generation cellular telecommunications (5G). The microstrip antenna was designed using two slots, i.e., the disconnected rectangular ring and inverted U-shaped slots. The Wi-Fi and 5G frequencies working on this antenna were 2.45 GHz and 3.3 GHz. The resonant frequency on the antenna of this microstrip was affected by the slot length. The antenna was designed and fabricated using a Rogers 5880 substrate with a material’s relative permeability (er) of 2.2, a tangent loss (d) of 0.0009, and a thickness of 1.575 mm. Before being fabricated, the antenna design was simulated using the Ansys HFSS simulator, which is a simulator for designing components using electromagnetic waves including antennas. Compared to the simulation results, the results of reflection coefficient measurement in this antenna design showed excellent results for both frequencies. In the simulation results, the reflection coefficient provided a bandwidth of 123 MHz in the 2,412-2,535 MHz frequency range, while the measurement results provided a bandwidth value of 153 MHz in the 2,402-2,555 MHz frequency range for the Wi-Fi frequency application. At the 5G frequency, a measuring bandwidth of 87 MHz was obtained in the range of 3,260-3,347 MHz. The measurement results were commensurate with the simulation results, which obtained a bandwidth of 88 MHz in the range of 3,248-3,336 MHz. Therefore, the fabrication of this antenna design can be used for both applications.
Co-Authors Adhiyoga, Yohanes Galih Alya Patrakomala Dian Rusdiyanto Dian Widi Astuti Dwi Astuti Cahyasiwi Intan Wahyuni Miftahul Khoiri Mudrik Alaydrus Said Attamimi Sis Yasin Darmanik Syah Alam