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All Journal International Journal of Electrical and Computer Engineering Jurnal Elementer (Elektro dan Mesin Terapan) Jambura Journal of Mathematics Budimas : Jurnal Pengabdian Masyarakat Proceeding Applied Business and Engineering Conference eProceedings of Engineering Sewagati Journal of Electronics Technology Exploration (JOeTEx)
Mohammad Yanuar Hariyawan
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Antena Broadband Untuk Aplikasi TV, Seluler, dan Wifi Rizadi Sasmita Darwis; Muhammad Yanuar Hariyawan
Jurnal Elektro dan Mesin Terapan Vol. 6 No. 1 (2020): Jurnal Elektro dan Mesin Terapan (ELEMENTER)
Publisher : Politeknik Caltex Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1898.566 KB)

Abstract

The antenna is an instrument that is important in a communication system radio.antena turn the tide terbimbing into waves free in the air and in contrast between free space with a guide can include ( coaxial cable or a / waves a waveguide ) used to meggerakkan electromagnetic energy from the source of the transmitter to or from an antenna to antenna. recipientsThe antenna have diverse forms with the dimensions and of diverse characteristics, anyway one of the antenna that attracts many research is mikrostrip. antennaThe antenna mikrostrip has several advantages of them simple forms, a compact, lightly, and cheap.On this research used antenna mikrostrip with the frequency of mhz broadband at band of frequencies 500 to 2500 Mhz.The substrate material to be used is rt duroid 5880, with dielectric constant ( εr) 2.2 and thickness ( h ) 1.57 mm. Antenna mikrostrip made using circular patches .The measurement result shows performance of returnloss antennae < -10 db at the frequency of 605 Mhz to 6677 Mhz , with bandwidth 6072 Mhz .Polaradiasi mikrostrip shaped omni directional antenna .Gain the measurement result mikrostrip antenna on the highest frequency of 650 Mhz to gain 3.3 db and at the frequency of 1800 Mhz with gain 3.4 db . The antenna received microstrip has a higher than conventional antenna which is at the frequency of Mhz 650 power accept antenna mikrostrip -33.08 dbm bigger than conventional 59.90 dbm antenna
The Effects of Spread-Spectrum Techniques in Mitigating Conducted EMI to LED Luminance Mohammad Yanuar Hariyawan; Risanuri Hidayat; Eka Firmansyah
International Journal of Electrical and Computer Engineering (IJECE) Vol 6, No 3: June 2016
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2596.887 KB) | DOI: 10.11591/ijece.v6i3.pp1332-1343

Abstract

Rapid voltage and current changes in recently ubiquitous LED driver have a potency to interfere other devices. Solutions with special converter design, component design, EMI filter, and spread-spectrum techniques have been proposed. Due to cost-size-weight constraints, spread-spectrum technique seems a potential candidate in alleviating EMI problem in LED application. In this paper, the effectiveness of conducted EMI suppression performance of the spread-spectrum technique is evaluated. Spread-spectrum techniques applied by giving disturbance to the system LED driver with 3 profile signals, filtered square, triangular, and sine disturbance signal to the switching pattern of a buck LED driver. From the test results, 472.5 kHz triangular and 525 kHz sine signal can reduce EMI about 42 dBuV whilethe filtered square signal can reduce EMI 40.70 dBuV compare with fundamental constantfrequency reference 669 kHz. The average reduction in the power level of the third signal inthe frequency range of 199 kHz to 925 kHz for 5.154281 dBuV and the filtered square signal can reduce the average power level better than other signal disturbance of 5.852618 dBuV.LED luminance decrease when the spread-spectrum technique is applied to the system about 2814 lux.
Comparison Analysis Of Recovery Mechanism At Mpls Network Mohammad Yanuar Hariyawan
International Journal of Electrical and Computer Engineering (IJECE) Vol 1, No 2: December 2011
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (283.273 KB)

Abstract

Multi-protocol Label Switching (MPLS) has become an attractive technology of choice for Internet backbone service providers.  MPLS features the ability to perform traffic engineering and provides support for Quality of Service traffic provisioning. To deliver reliable service, MPLS requires a set of procedures to provide protection for the traffic carried on Label Switched Paths (LSP). In this case Lable Switched Routers (LSRS) supports recovery mechanism when failure happened in the network.This paper studied about performance from usage of different techniques that can be used to reroute traffic faster then  the current IP rerouting methods in the case of a failure in a network. Local rerouting, fast reroute one to one backs up, Haskin, PSL oriented path protection and 1+1 path protection recovery mechanism was compared by given of aggregate traffic which has self-similarity character. Packet drop, rejection probability, recovery time, service disruption time and pre-reserved resources backup will be made as comparator parameter with various bitrate and different position of link failure. Packet loss, rejection probability, recovery time and service disruption time at five recovery mechanisms influenced by position of link failure to ingress. 1+1 path protection mechanism has least packet drop, but costliest way to do recovery in the case of usage resources, as traffic is sent simultaneously in two paths which disjoint. Fast reroute one to one backup is quickest way to operate protection switching recovery after 1+1 path protection mechanism. Keywords: MPLS, recovery, rerouting, self-similar traffic, protection switchingDOI:http://dx.doi.org/10.11591/ijece.v1i2.84
Desain dan Implementasi Antena Mikrostrip Single Rectangular Patch Pada Band Frekuensi 1920-2180 MHz Untuk Pengisi Daya Alternatif Perangkat Berdaya Rendah Aufar Zikri; mohammad yanuar Hariyawan; Noptin Harpawi
Jurnal Elektro dan Mesin Terapan Vol. 2 No. 2 (2016): Jurnal Elektro dan Mesin Terapan (ELEMENTER)
Publisher : Politeknik Caltex Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (463.233 KB) | DOI: 10.35143/elementer.v2i2.105

Abstract

Menipisnya sumber energi bumi dijadikan sebagai energi listrik menyebabkan adanya pemanfaatan energi gelombang elektromagnetik sebagai energi alternatif. Untuk mendapatkan energi gelombang elektromaagnetik pada band 1920 sampai 2180 MHz diperlukan antena mikrostrip single rectangular patch yang diintegrasikan dengan modul rectifier EH300. Antena mikrostrip ini dibuat dari bahan Rogers dengan konstanta dielektrik 6,15 dan ketebalan 1,52 mm. Hasil simulasi diperoleh VSWR 1,02, Return Loss -39,93 dB, dan Gain 3,03 dBi pada frekuensi 2050 MHz. Pengujian hasil implementasi diperoleh VSWR 1,166, Return Loss -22,4 dB, dan Gain 2,83 dBi pada frekuensi 2050 MHz.
Perancangan Dan Implementasi Passive Emi Filter Pada Switching Mode Power Supply (SMPS) Fally Ahmad; Mohammad Yanuar Hariyawan; Siska Novita Posma
Jurnal Elektro dan Mesin Terapan Vol. 5 No. 1 (2019): Jurnal Elekto dan Mesin Terapan (ELEMENTER)
Publisher : Politeknik Caltex Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (309.395 KB) | DOI: 10.35143/elementer.v5i1.2519

Abstract

Kebutuhan akan perangkat elektronik dengan frekuensi yang tinggi menyebabkan meningkatnya jumlah Electromagnetic Interference (EMI) yang memiliki dua jenis yaitu Conducted Emission dan Radiated Emission. Solusi dari mitigasi EMI tersebut adalah dengan menggunakan filter EMI. Switching Mode Power Supply (SMPS) merupakan sumber daya bagi hampir seluruh perangkat elektronik, namun SMPS ini juga sumber EMI untuk perangkat lain atau bahkan perangkat itu sendiri. Banyak perangkat elektronik yang beredar dipasaran namun belum memenuhi standar EMC. Dalam hal ini mitigasi EMI yang dapat dilakukan adalah dengan menggunakan filter EMI eksternal pasif. Dengan filter pasif ini EMI dari SMPS dapat diredam tanpa memerlukan energi tambahan untuk filter itu sendiri. Penelitian ini akan melakukan perancangan filter EMI untuk meredam noise conducted emission menggunakan sebuah passive EMI filter (PEF) pada SMPS. Filter PEF yang telah dirancang dan diujikan dapat digunakan pada SMPS 1 dan SMPS 2 dengan noise conducted emission sebelum filter sebesar 97,86 dBµV yang diredam menjadi 33 dBµV dan menghasilkan redaman noise conducted emission yang sangat baik (hingga 64,86 dBµV) dan memenuhi standar yang ditetapkan (CISPR22 Class B).
Simulasi dan Perancangan Septum pada Gigahertz Transverse Electromagnetic (GTEM) Cell dalam Pengujian Radiated Emision Trifandi Wibowo; Noptin Harpawi; Muhammad Yanuar Hariyawan
Jurnal Elektro dan Mesin Terapan Vol. 5 No. 2 (2019): Jurnal Elektro dan Mesin Terapan (ELEMENTER)
Publisher : Politeknik Caltex Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (376.99 KB) | DOI: 10.35143/elementer.v5i2.2525

Abstract

Gigahertz Transverse Electromagnetic Chamber (GTEM) cell merupakan suatu solusi dalam pengujian radiated immunity dan emission pada perangkat yang memancarkan sumber emisi (EMI). Septum GTEM cell yang berperan sebagai antena penerima radiasi dirancang menggunakan metode antena microstrip log periodic dipole array (LPDA). Sebelum diimplementasikan dalam perancangannya, karakteristik septum dilihat terlebih dahulu dari parameter return loss, VSWR dan gain yang dihasilkan. Desain dengan metode antena LPDA menggunakan spesifikasi khusus dengan parameter τ = 0.871 dan σ = 0.161 untuk mendapatkan gain = 7 dB. Septum dirancang dengan frekuensi Ultra Wide Band (UWB) dengan range 300 MHz – 1 GHz. Bahan substrat yang digunakan adalah FR4, dengan konstanta dielektrik sebesar 4.6 dan ketebalan 1.6 mm. Septum dirancang menggunakan simulasi CST sebelum diimplementasikan dalam pengujian radiated emision. Parameter yang dihasilkan dari hasil septum ini adalah nilai return loss -10 dB direntang frekuensi 300 MHz – 1 GHz, sementara nilai return loss terendah adalah -60.34 dB pada frekuensi 682.2 MHz dan nilai VSWR >2 pada frekuensi 300 MHz – 1 GHz dengan nilai VSWR terendah adalah 1.104 difrekuensi 552 MHz. Dari hasil pengukuran didapatkan gain sebesar 8.4 dBi dengan tipe polaradiasi directional. Septum yang dirancang berhasil melakukan pengukuran radiasi pada EMI source dan smartphone
Teknik Mitigasi Conducted Emission Pada LED Driver Topologi Buck Dengan Metode Random Up Spreading Switching Frequency Noptin Harpawi; Muhammad Yanuar Hariyawan; Siska Novita Posma
Jurnal Elektro dan Mesin Terapan Vol. 5 No. 2 (2019): Jurnal Elektro dan Mesin Terapan (ELEMENTER)
Publisher : Politeknik Caltex Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (507.344 KB) | DOI: 10.35143/elementer.v5i2.3357

Abstract

Operasi switching pada komponen semikonduktor LED driver, akan menghasilkan permasalahan berupa EMI yang akan mengganggu perangkat di sekitarnya (sebagai sumber) atau sistem itu sendiri (sebagai korban). Teknik mitigasi EMI pada LED driver dibatasi oleh biaya, ukuran, berat dan kinerja sistem. Berbagai solusi digunakan untuk mengurangi permasalahan EMI pada LED driver, melalui disain converter, disain komponen, disain filter EMI, dan teknik spread spectrum (SS). Dari beberapa solusi tersebut, SS merupakan solusi yang murah dan berdaya guna dalam mitigasi EMI, karena teknik ini dapat diaplikasikan dengan pemrograman pada embedded system dengan penambahan sedikit komponen. Program yang diterapkan dalam penelitian ini adalah mengatur pola pembangkitan sinyal PWM dengan metode random up spreading switching frequency sebagai pengendali konverter. Pendekatan menggunakan embedded system memiliki beberapa keuntungan diantaranya menjaga efisiensi, kehandalan dan kinerja yang tinggi karena minim perubahan rangkaian atau komponen tambahan dan mempunyai kompleksitas disain yang relatif rendah. Hasil dari penerapan metode ini adalah didapatkan penurunan EMI sebesar 20% saat frekuensi switching diacak pada rentang 600 KHz hingga 650 KHz dengan step random minimal 100 Hz dan masing-masing frekuensi diberi waktu melakukan switching selama 1 mikro detik. Nilai tegangan output dari LED driver tetap bisa bertahan pada level 7V ketika metode ini diterapkan.
Perancangan Filter EMI Pasif dalam Rangka Mitigasi Conducted emission pada Lampu LED Siska Novita Posma; Mohammad Yanuar Hariyawan; Oddy Rifandi
Jurnal Elektro dan Mesin Terapan Vol. 5 No. 2 (2019): Jurnal Elektro dan Mesin Terapan (ELEMENTER)
Publisher : Politeknik Caltex Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (570.612 KB) | DOI: 10.35143/elementer.v5i2.3376

Abstract

Light-emitting diode (LED) lamps become popular in a variety of applications, due to low power usage, high efficiency, and low maintenance. Another advantage of LEDs is that they are durable and environmentally friendly because they contain less toxic substance composition compared to other types of lamps. To achieve high efficiency in energy transfer to the LED power supply, a switching mode power supply (SMPS) is applied. SMPS was implemented with pulse width modulation (PWM) which operates at a constant frequency, producing significant emissions in several frequencies through conducted and radiated mechanisms. These emissions are called electromagnetic interference (EMI). As a result, many LED lamps have the potential to fail to meet the electromagnetic compatibility (EMC) standard. In this research, the design and implementation of passive EMI filters were carried out to reduce the conducted emission of LED lights on the market. Passive EMI filters are LC low pass filters (LPF). Before the LED lights were applied to the EMI passive filter, conducted emissions were measured to exceed CISPR 22 class B regulatory standards, which reached 82.5 dBµV. When the passive EMI filter was implemented, the LED lights occur conducted emission reduction in the frequency range 150kHz - 1.5MHz with an average value of 36.96 dBµV and a maximum reduction value of 34.7 dBµV.
Modifikasi Frekuensi Switching pada LED Driver Menggunakan Oscillator Lorenz Analog untuk Mereduksi Conducted EMI Mohammad Yanuar Hariyawan; Noptin Harpawi Harpawi
Jurnal Elektro dan Mesin Terapan Vol. 6 No. 2 (2020): Jurnal Elektro dan Mesin Terapan (ELEMENTER)
Publisher : Politeknik Caltex Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (557.675 KB) | DOI: 10.35143/elementer.v6i2.3600

Abstract

Light emitting diode (LED) are becoming increasingly popular in a variety of applications, due to low power, high efficiency and low maintenance. To achieve high efficiency, switched mode power supply (SMPS) is applied. SMPS is implemented with pulse width modulation (PWM) which operates at a constant frequency. Constant switching frequency produces significant emissions in a number of frequencies, this emission is called electromagnetic interference (EMI). The EMI generated includes the fundamental operation frequency of the power supply and its harmonics through a conducted and radiated mechanism. As a result, SMPS has the potential to be unable to meet the electromagnetic compatibility (EMC) standard. Modification of switching in SMPS using spread spectrum techniques is a cheap and efficient solution in EMI mitigation. In this research, switching modification is done on LED drivers with chaotic Lorenz signals. The Lorenz chaotic signal is applied to the LED evaluation board and then the EMI performance is seen compared to when the LED driver works with a constant frequency. When applied to the Lorenz chaotic signal there was a decrease in the level of emission of the largest EMI which is equal to 16.5 dBµV
Pengaruh Ketebalan Material Terhadap Shielding Effectiveness pada Frekuensi Rendah Mohammad Yanuar Hariyawan; Rizadi Sasmita Darwis; Siska Novita Posma
Jurnal Elektro dan Mesin Terapan Vol. 7 No. 2 (2021): Jurnal Elektro dan Mesin Terapan (ELEMENTER)
Publisher : Politeknik Caltex Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (255.871 KB) | DOI: 10.35143/elementer.v7i2.5176

Abstract

Today, the need for electronic devices with smaller and more compact dimensions integrating many functions is increasing. At the same time, the need for ubiquitous processor speed, clock, data rate, and wireless connectivity is also increasing. This increase in demand also results in an increase in electromagnetic interference (EMI) in the environment. Although rare, High-Impact, Low-Frequency (HILF) events have the potential to have a deleterious impact on the electric power system. In this study, an analysis of shielding effectiveness (SE) was carried out at low frequencies when the thickness of the shielding material was varied. The materials used in this research are aluminum sheet and aluminum foil, and they combine their thickness through a single layer or double layer scheme. The thickness of the shielding material affects the value of shielding effectiveness; as evidenced when the thickness of the material is increased to 2 times, an increase in the value of shielding effectiveness reaches 207%. The use of double layers shows an increase in shielding effectiveness which is better than increasing the thickness of the material.
Co-Authors Achmad Jauhari, Achmad Ahmad Maulana, Firman Alamsyah, Gempar Amsyari Rustam, Faiz Anang Budikarso, Anang Arifin Aser Elegius Logo, Royzaldo Aufar Zikri Aulia Rahma Annisa Aulia Rahma Annisa Bain Khusnul Khotimah Briantoro, Hendi Cahyana, Amelia Devie Rosa Anamisa Diemas Ibnus Pasedja Eka Firmansyah Eka Sari Oktarina Fally Ahmad Fannush Shofi Akbar Fifin Ayu Mufarroha Firli Irhamni Firmansyah, Muhammad Rizal Ginardi, R.V. Hari Haris Efendi Hendy Briantoro indrawanti, annisaa sri Kusuma, Zulfa Hafizh Luqmanulhakim, Naufan Zaki Maulana, Risyad Mohammad, Iki Adfi Nur Muchammad Husni Noptin Harpawi Noptin Harpawi Noptin Harpawi Harpawi Nuraini, Dinah Oddy Rifandi Pangestu Widodo, Pangestu Raywanda Affandi Harahap Riezkha Salsabilla Risanuri Hidayat Rizadi Sasmita Darwis Rizadi Sasmita Darwis Rizka Wakhidatus Sholikah, Rizka Wakhidatus Sabilla, Irzal Ahmad Santosa, Hafis Akmaldi Siska Novita Posma Siska Novita Posma Suci Ramadona Susijanto Tri Rasmana Syafa, Ilhan Ahmad Trifandi Wibowo Violina, Dina Wahyudi Nasrianza Wicaksono, M. Januar Eko Wicaksono, Rahmad Aji Wijaya, Agas Ananta Wira Indani Wisnu Wibowo, Raynaldi Yoedy Moegiharto, Yoedy Yospet Pradika Zakariya, Naufal