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Jurnal Elektronika dan Telekomunikasi
Published by Lembaga Ilmu Pengetahuan Indonesia
ISSN : 14118289     EISSN : 25279955     DOI : -
Core Subject : Engineering,
Electrical & Electronics Engineering Engineering
Jurnal Elektronika dan Telekomunikasi (JET) is an open access, a peer-reviewed journal published by Research Center for Electronics and Telecommunication - Indonesian Institute of Sciences. We publish original research papers, review articles and case studies on the latest research and developments in the field of electronics, telecommunications, and microelectronics engineering. JET is published twice a year and uses double-blind peer review. It was first published in 2001.
Arjuna Subject : -
Articles 470 Documents
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Antena Bikonikal Tabung untuk Aplikasi Radar Electronic Support Measures Dengan Pola Radiasi Omni-directional pada Frekuensi 2-18 GHz Saputera, Yussi Perdana; Oktaviani, Folin; Wahyu, Yuyu
Jurnal Elektronika dan Telekomunikasi Vol 13, No 1 (2013)
Publisher : Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1110.297 KB) | DOI: 10.14203/jet.v13.23-27

Abstract

Pada tulisan ini, dibahas hasil penelitian mengenai perancangan antena bikonikal tabung yang memiliki pola radiasi omni-directional yang akan digunakan pada radar Elektronic Support Measures (ESM). Antena bikonikal memiliki karakteristik bandwidth yang sangat lebar (ultra wide band) cocok digunakan pada aplikasi ESM dengan frekuensi 2–18 GHz. Bentuk pola radiasi omni-directional yang dirancang bertujuan agar pada saat ESM melakukan deteksi frekuensi radar (S-, C-, X-, dan Ku-band) dari pancaran radar yang berada di sekitarnya dapat melakukan deteksi ke segala arah. Karena kegunaan ESM sebagai detektor radar dengan sifat sebagai penerima (receiver) dibutuhkan VSWR di bawah 2,5 dengan nilai return loss di bawah -7,436. Antena bikonikal yang dirancang menggunakan dua plat tembaga yang dibentuk kerucut dengan penambahan tabung dengan pemasangan yang saling berhadapan, yang dipasang pada inner connector dan ground. Antena bikonikal dipasang mengunakan balun ¼ λ, agar matching impedansi antara antena dengan konektor 50 Ω. Plat tembaga yang digunakan dengan tebal 0,8 mm.
Fabrication of Polyimide Optical Waveguide on Silicon Dioxide Layer Stacked Silicon Substrate Mahmudin, Dadin; -, Shobih; Daud, Pamungkas; Wijayanto, Yusuf Nur
Jurnal Elektronika dan Telekomunikasi Vol 17, No 2 (2017)
Publisher : Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jet.v17.36-41

Abstract

Optical waveguides are important for guiding lightwave from a place to other places. Propagation and insertion losses of the optical waveguides should be considered to be in low values. Recently, optical waveguides with circular structures, which are optical fibers, are used widely for guiding lightwave in long-distance optical communication with very low propagation and insertion losses. Simultaneously, optical waveguides with planar structure are also developed for short distance communication in optical devices. We have reported design and analysis of the planar optical waveguides. In this paper, fabrication of planar optical waveguides using a polyimide material on thin silicon dioxide combined with the silicon substrate is reported. The polyimide material is used for the core of the optical waveguides. The silicon dioxide located on the silicon substrate and the air is used for cladding of the optical waveguides. Fabrication of the optical waveguides such as oxidation, photoresist coating, masking, ultra-violet exposure, and etching was done. The fabricated optical waveguides were characterized physically using a standard microscope and scanning electron microscope (SEM). The fabrication processes and characterization results are reported and discussed in detail.
Design of Automated PC Shutdown Control System in Coastal/LPI Radar System Based on Microcontroller ATMega8L Danufane, Fadil Habibi; Rahman, Arief Nur; Pristianto, Eko Joni
Jurnal Elektronika dan Telekomunikasi Vol 16, No 2 (2016)
Publisher : Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (677.626 KB) | DOI: 10.14203/jet.v16.59-64

Abstract

One consideration during the design of long range controlled electrical system is the sudden outage of a Personal Computer (PC) caused by power failure. Frequent outage can damage the components inside the PC such that the whole system could be malfunction. This can affect the cost, time, and effort required to fix the system. Usually such system is equipped with a temporary power storage or UPS (uninterruptible power supply) with a small capacity, so the PC in the system can immediately be turned off before the UPS runs out. Therefore it is necessary to design a control system that can shutdown the PC automatically within a certain range of time after the outage. The implementation of designed system has used an ATmega8L microcontroller as a controller, an optoisolator PS2505-1 as isolator for electric components from AC signal, and Visual Basic as the programming language. The system has been tested with an input voltage of 220Vrms AC signal. The test result has shown that the PC was successfully shut down within a certain time range after the input was terminated.
Antena Spiral-dipole untuk Ground Penetrating Radar (GPR) Wahyu, Yuyu; S, Haryanto Sachrawi; H, Asep Yudi; Wijanto, Heroe
Jurnal Elektronika dan Telekomunikasi Vol 13, No 2 (2013)
Publisher : Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (514.36 KB) | DOI: 10.14203/jet.v13.39-46

Abstract

GPR (Ground Penetrating Radar) merupakan divais yang berguna untuk proses pendeteksian objek yang terkubur di bawah permukaan tanah hingga kedalaman tertentu, tanpa perlu dilakukan penggalian tanah. Pada penelitian ini dilakukan perancangan, simulasi dan realisasi antena spiral-dipole dengan pembebanan resistif untuk aplikasi impulse GPR. Pembebanan resistif bertujuan untuk menekan late-time ringing dan memperbesar bandwidth walaupun akan mengurangi efisiensi amplitudo pulsa utama. Late-time ringing merupakan osilasi yang mengikuti pulsa yang dikirimkan. Osilasi ini dapat mengaburkan sinyal yang dipantulkan oleh objek sehingga menyulitkan untuk dilakukan proses deteksi. Dengan melakukan perubahan nilai konstanta k pada rumusan spiral Archimedes, maka didapatkan bentuk spiral dengan kerapatan yang berbeda-beda. Dalam tulisan ini, nilai konstanta k yang digunakan antara lain 0,5; 1; dan 1,5. Parameter yang dibahas dalam simulasi ini adalah amplitudo peak to peak pulsa utama maupun ringing yang dihasilkan dari masing-masing antena dengan nilai konstanta k yang digunakan. Analisis elektromagnetik dalam domain waktu digunakan metode FDTD (finite-difference time-domain) dengan software FDTD3D untuk menghitung gelombang yang ditransmisikan antena dalam domain waktu. Selanjutnya dilakukan realisasi dan pengukuran antena tersebut.
Analisa Kinerja Teknik Modulasi Digital pada Kanal Optik Nirkabel Astharini, Dwi; Mayola, Ary; Samijayani, Octarina Nur; Syahriar, Ary
Jurnal Elektronika dan Telekomunikasi Vol 17, No 1 (2017)
Publisher : Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jet.v17.7-12

Abstract

Transmisi optik nirkabel dengan kecepatan tinggi memiliki berbagai potensi untuk aplikasi jarak pendek terutama untuk komunikasi di dalam ruangan. Tulisan ini memaparkan perbandingan kinerja transmisi FSO menggunakan beberapa variasi skema modulasi. Pengamatan unjuk kinerja terutama dilakukan menggunakan bit error rate (BER). Gangguan turbulensi atmorferik menjadi bagian dari pemodelan kanal log normal yang digunakan dalam simulasi. Modulasi dasar spasial yang digunakan adalah on-off keying sebagai teknik klasik FSO, beserta pulse position modulation yang merupakan variasi spasialnya. Menelaah penggunaan modulasi baseband untuk sistem optik, disimulasikan PSK 2, 4, 8, 16, serta QAM 4 dan 16. Simulasi dengan data ukuran kecil menghasilkan bahwa BPSK dan 4 QAM menunjukkan unjuk kerja terbaik dengan BER rata-rata sekitar 10^-3 pada kondisi gangguan sedang sampai tinggi. Sementara tingkat error pada OOK dan PPM masih di atas 10^-0.5.
Design and Realization of Coupled Line Bandpass Filter Using Compact Structure at Frequencies of 3300 MHz – 3400 MHz for WiMAX Application Santiko, Arief Budi; Amrullah, Yahya Syukri; Wahyu, Yuyu; Maulana, Muhammad Ilham; Setia, Bambang
Jurnal Elektronika dan Telekomunikasi Vol 16, No 1 (2016)
Publisher : Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jet.v16.11-14

Abstract

In this paper, the design of microstrip BPF (Bandpass Filter) for WiMAX (Worldwide Interoperability for Microwave Access) application has been presented. The frequency band allocations for BWA (Broadband Wireless Access) in Indonesia are 2.3; 3.3 and 5.8 GHz. This microtrip BPF is designed using parallel coupled line in compact form and it has spesific parameter, i.e. 3.35 GHz center frequency, 400 MHz bandwidth, VSWR ≤ 2, -3 dB insertion loss and matching impedance between two port is 50 Ω. The Advanced Design System (ADS) software has been used during simulation and optimization. The simulation results show that return loss S11 and insertion loss S21 are -15.31 dB and -2.2 dB at 3.35 GHz respectively. For the design verification, the prototype of the proposed design wasfabricated and measured.The results of the fabrication approach of simulation results, which have return loss value S11and insertion loss S21 of the proposed microstrip filter are -18.20 dB and -2.91 dB at 3.35 GHz respectively. The result shows that the proposed design can be implemented forWiMAX communication system applications
Preface Vol 14 No 1 Miftahushudur, Tajul
Jurnal Elektronika dan Telekomunikasi Vol 14, No 1 (2014)
Publisher : Indonesian Institute of Sciences

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Abstract

Preface Vol 15 No 1 Wael, Chaeriah Bin Ali
Jurnal Elektronika dan Telekomunikasi Vol 15, No 1 (2015)
Publisher : Indonesian Institute of Sciences

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Abstract

Front Cover Vol 13 No 1 Miftahushudur, Tajul
Jurnal Elektronika dan Telekomunikasi Vol 13, No 1 (2013)
Publisher : Indonesian Institute of Sciences

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Abstract

Front Cover Vol. 18 No. 1 Wael, Chaeriah Bin Ali
Jurnal Elektronika dan Telekomunikasi Vol 18, No 1 (2018)
Publisher : Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5168.089 KB)

Abstract

Page 4 of 47 | Total Record : 470

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