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All Journal International Journal of Electrical and Computer Engineering Perfecting a Video Game with Game Metrics Jurnal Teknologi Elektro ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Proceeding of the Electrical Engineering Computer Science and Informatics JOURNAL OF INFORMATICS AND TELECOMMUNICATION ENGINEERING Jurnal Nasional Teknik Elektro dan Teknologi Informasi

Dian Widi Astuti

Universitas Mercu Buana

Author-ID : 2384476

Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering

Published : 9 Documents Claim Missing Document

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Articles

Substrate integrated waveguide bandpass filter for short range device application using rectangular open loop resonator Dian Widi Astuti; Rizki Ramadhan Putra; Muslim Muslim; Mudrik Alaydrus
International Journal of Electrical and Computer Engineering (IJECE) Vol 11, No 5: October 2021
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v11i5.pp3747-3756

The substrate integrated waveguide (SIW) structure is the candidate for many application in microwave, terahertz and millimeter wave application. It because of SIW structure can integrate with any component in one substrate than others structure. A kind components using SIW structure is a filter component, especialy bandpass filter. This research recommended SIW bandpass filter using rectangular open loop resonator for giving more selectivity of filter. It can be implemented for short range device (SRD) application in frequency region 2.4 - 2.483 GHz. Two types of SIW bandpass filter are proposed. First, SIW bandpass filter is proposed using six rectangular open loop resonators while the second SIW bandpass filter used eight rectangular open loop resonators. The simulation results for two kinds of the recommended rectangular open loop resonators have insertion loss (S21 parameter) below 2 dB and return loss (S11 parameter) more than 10 dB. Fabrication of the recommended two kind filters was validated by Vector Network Analyzer. The measurement results for six rectangular open loop resonators have 1.32 dB for S21 parameter at 2.29 GHz while the S11 parameter more than 18 dB at 2.26 GHz – 2.32 GHz. While the measurement results has good agreement for eight rectangular open loop resonators. Its have S21 below 2.2 dB at 2.41 – 2.47 GHz and S11 16.27 dB at 2.38 GHz and 11.5 dB at 2.47 GHz.

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

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

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.

PERANCANGAN APLIKASI MOBILE REMOTE CONTROL BERBASIS ANDROID PADA ROBOT LEGO MINDSTORMS NXT 2.0 Dwi Maya Nursyswanti; Dian Widi Astuti
Jurnal Teknologi Elektro Vol 6, No 3 (2015)
Publisher : Electrical Engineering, Universitas Mercu Buana

Dewasa ini perkembangan teknologi di dunia robot edukasi telah berkembang pesat. Robot-robot edukasi ini sering digunakan dalam riset penelitian karena kemudahan-kemudahan yang diberikannya dari segi perangkat keras. Salah satu contoh robot edukasi adalah robot LEGO Mindstorms NXT 2.0. Dengan semakin pesatnya perkembangan teknologi robot pada saat ini, maka pengendalian robot tidak hanya bisa dilakukan secara manual tetapi juga bisa dilakukan melalui smartphone Android.Penelitian ini bertujuan untuk membuat sistem pergerakan robot dengan memanfaatkan sistem yang berada didalam smartphone Android. Selain dapat menggerakan robot, smartphone juga dapat mengaktifkan program beserta sensor-sensor yang berada di dalam robot NXT. Untuk itu, pemrograman bahasa Java digunakan dalam membuat aplikasi padaSmartphone Android agar dapat mengendalikan robot NXT. Pada hasil uji coba sistem pergerakan robot ini, baik secara manual atau melaluiSmartphone Android, maka dapat disimpulkan bahwa semua sistem dapat berfungsi dengan baik. Untuk uji coba sensor cahaya yang digunakan untuk program Line Followerhanya dapat berjalan dengan normal dan lancar apabila permukaan datar dan kecepatan tidak melebihi 60 pwm, sedangkan untuk sensor tekan yang digunakan untuk program Bumper Car dapat dibaca dengan baik oleh sistem simulasi tanpa ada kendala. Meskipun demikian, masih banyak pengembangan yang dapat dilakukan pada penelitian ini seiring dengan perkembangan teknologi.Kata Kunci: LEGO Mindstroms NXT 2.0, Android, Bluetooth, Line Follower, Bumper Car.

ANALISA PERFORMANSI RECEIVED TOTAL WIDEBAND POWER (RTWP) TERHADAP KUALITAS PERFORMANSI JARINGAN PADA JARINGAN WCDMA IBC TELKOMSEL Ardiansyah Ardiansyah; Dian Widi Astuti
Jurnal Teknologi Elektro Vol 7, No 2 (2016)
Publisher : Electrical Engineering, Universitas Mercu Buana

Pada aplikasi jaringan inbuilding coverage gangguan interferensi menjadi faktor utama penurunan kinerja jaringan. Pada jurnal ini telah dilakukan analisa pengaruh performansi RTWP terhadap kualitas performansi jaringan atau Key Performance Indicator (KPI). Analisa dilakukan dengan mengamati performansi nilai RTWP menggunakan Huawei Local Maintenance Terminal iManager U2000 dan didapati high RTWP sehingga menyebabkan nilai Key Performance Indikator (KPI) menurun.Pada penelitian ini analisa yang dilakukan adalah mencari penyebab high RTWP dengan melakukan pengecekan dari sisi BTS sampai ke sisi Distributed Antenna System (DAS) dan penggantian perangkat triplexer juga perbaikan konektor pada sisi Distributed Antenna System (DAS).Setelah dilakukan penggantian perangkat triplexer dan perbaikan konektor pada sisi Distributed Antenna System (DAS) nilai RTWP mengalami perbaikan. Dari hasil analisa pada penelitian ini setelah diketahui nilai RTWP mengalami perbaikan maka nilai parameter KPI juga mengalami perbaikan. Nilai KPI Accessibility mengalami perbaikan yang awalnya hanya 92,5% menjadi 99%. Nilai KPI Retainibility mengalami perbaikan yang awalnya hanya 96% menjadi 99,6%. Nilai KPI Mobility mengalami perbaikan yang awalnya hanya 81% menjadi 97,5%. Sehingga kinerja jaringan juga mengalami perbaikan.Kata Kunci – Interferensi Uplink, RTWP, W-CDMA, NodeB, KPI

PERANCANGAN DAN REALISASI BANDPASS FILTER DENGAN METODE OPEN LOOP SQUARE RESONATOR UNTUK MICROWAVE LINK Naufal Rizki Rinditayoga; Dian Widi Astuti
Jurnal Teknologi Elektro Vol 7, No 3 (2016)
Publisher : Electrical Engineering, Universitas Mercu Buana

Dalam dunia telekomunikasi, antena parabola ini dipakai oleh perangkat yang dinamai perangkat transmisi radio microwave (gelombang mikro) point to point. Microwave link sendiri merupakan sistem komunikasi yang menggunakan gelombang radio pada rentang frekuensi gelombang mikro untuk mengirimkan video, audio, atau data antara dua lokasi yang terpisah, yang dapat digunakan hanya beberapa meter sampai dengan beberapa kilometer. Untuk mendukung teknologi tersebut, tidak lepas dari sebuah yang bernama filter. Filter sendiri merupakan salah satu komponen penting dalam komunikasi wireless.Dasar penelitian ini yaitu bertujuan untuk membuat sebuah bandpass filter yang dapat meloloskan frekuensi pada microwave link yaitu pada frekuensi 7,1 GHz – 7,7 GHz. Dari hasil pengukuran respon filter pada alat vector network analyzer didapatkan hasil yang berbeda antara spesifikasi, simulasi dan fabrikasi. Hasil dari penelitian ini Bandpass filter bekerja pada frekuensi 7,1 – 7,7 GHz. Pada hasil simulasi menggunakan HFSS didapatkan nilai return loss (S11) filter sebesar -27,48 dB dan insertion loss (S21) sebesar -0,43 dB. Sedangkan pada hasil pengukuran menggunakan VNA didapatkan nilai return loss (S11) filter sebesar -28,2 dB dan insertion loss (S21) sebesar -0,53 dBKata kunci : Bandpass filter, Open Loop Square Resonator, Microwave link

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

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

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.

Antena Mikrostrip MIMO dengan Teknik Planar Series Array 4x2 elemen untuk Sistem Komunikasi 5G SYAH ALAM; INDRA SURJATI; YULI KURNIA NINGSIH; LYDIA SARI; SURYADI SURYADI; RADEN DEINY MARDIAN; TEGUH FIRMANSYAH; ZAHRILADHA ZAKARIA; DIAN WIDI ASTUTI
Jurnal Elkomika Vol 12, No 2 (2024): ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektr
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v12i2.441

ABSTRAKMakalah ini mengusulkan antena mikrostrip dengan dengan performansi tinggi yang beroperasi pada frekuensi resonansi 3,5 GHz untuk sistem komunikasi 5G. Antena dikembangkan dalam dengan teknik array planar seri 4x2 elemen yang dikonfigurasi MIMO. Berdasarkan hasil pengukuran, antena yang dirancang memiliki koefisien refleksi <= -10 dB, koefisien isolasi <= -40 dB dengan rentang frekuensi 3.1 GHz – 3,7 GHz dan gain maksimum sebesar 12,52 dB pada frekuensi resonansi 3,5 GHz. Bandwidth dan penguatan antena masing-masing meningkat sebesar 172.72% dan 160.83 %. Penelitian ini dapat direkomendasikan untuk digunakan sebagai antena penerima sistem komunikasi 5G.Kata kunci: antena, array, mikrostrip, MIMO, planar, 5G ABSTRACTThis article suggests a microstrip antenna with high performance, designed to operate at the resonant frequency of 3.5 GHz in 5G communication systems. The antenna is developed in a MIMO-configured 4x2 element series planar array technique. Based on measurement results, the proposed antenna exhibits a reflection coefficient of <= -10 dB, an isolation coefficient of <= -40 dB, within the frequency range 3.1 – 3.7 GHz and maximum gain of 12.52 dB at the resonant frequency of 3.5 GHz. The antenna's bandwidth and gain enhanced until 172.72% and 160.83%, respectively. This study suggests the potential use of the developed antenna as a reception device in 5G communication systems.Keywords: antenna, array, microstrip, MIMO, planar, 5G

Co-Authors Adhiyoga, Yohanes Galih Alya Patrakomala Ardiansyah Ardiansyah Dian Rusdiyanto Dwi Astuti Cahyasiwi Dwi Maya Nursyswanti Indra Surjati Intan Wahyuni Lydia Sari Mudrik Alaydrus Muslim Muslim Muslim Muslim Naufal Rizki Rinditayoga Raden Deiny Mardian Rizki Ramadhan Putra Said Attamimi Sis Yasin Darmanik SURYADI SURYADI Syah Alam Teguh Firmansyah YULI KURNIA NINGSIH Zahriladha Zakaria

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