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All Journal TESLA Jurnal Teknik Elektro UNTAR Jurnal Teknik Elektro ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika JOURNAL OF INFORMATICS AND TELECOMMUNICATION ENGINEERING JTERA (Jurnal Teknologi Rekayasa) Techne : Jurnal Ilmiah Elektroteknika Jurnal Telematika Jurnal Teknik Abdimas Umtas : Jurnal Pengabdian kepada Masyarakat SULUH: Jurnal Abdimas Jurnal Pengabdian Masyarakat Teknik Abdimasku : Jurnal Pengabdian Masyarakat Reswara: Jurnal Pengabdian Kepada Masyarakat JITEL (Jurnal Ilmiah Telekomunikasi, Elektronika, dan Listrik Tenaga) Makara Journal of Technology Jurnal Ecotipe (Electronic, Control, Telecommunication, Information, and Power Engineering)
Indra Surjati
Universitas Trisakti
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SISTEM PENDETEKSI KAPASITAS TEMPAT SAMPAH SECARA OTOMATIS PADA KOMPLEKS PERUMAHAN Surjati, Indra; Wijono, F.X. Sigit; Suherman, Suherman
TESLA Jurnal Teknik Elektro UNTAR Vol 10, No 2 (2008): OKTOBER 2008
Publisher : Universitas Tarumanagara

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Abstract

Automatic Trash Capacity Detection System for Real Estate, there are two parts including: transmitter unit part and receiver unit part by alternating communication. The both of parts working by wireless using Radio Frequency wave. The transmitter unit part there are Infrared Sensors module, Microcontroller module, Modulator of Frequency Shift Keying module, and Transmitter of Frequency Modulation module. While on receiver unit there are Receiver of Frequency Modulation module, Demodulator of Frequency Shift Keying Module, Microcontroller module, Interfacing module, and Personal Computer for monitoring and database view.
MODEL SISTEM OTOMATISASI PENGISIAN ULANG AIR MINUM Malluka, Marlin; Surjati, Indra
TESLA Jurnal Teknik Elektro UNTAR Vol 10, No 2 (2008): OKTOBER 2008
Publisher : Universitas Tarumanagara

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Abstract

Every people’s need for drinking water in fulfilling daily needs is very important to support their activities. Technology developments, a life style of people were changes rapidly. In the past time to get the ready-to-consume water they had to boil it first, but now a simply refill the gallon with water. With the change of life style of the people who consume refill water in gallon, then various drinking water refill depots emerge, however in reality the water volume is not equal in every refill. For the above reason, the design of a microcontroller-based drinking water refill automation system model. This instrument consists of two sections that are transmitter and receiver. This drinking water refill automation system instrument can operate in accordance with the desire and can perform the refilling with minimum liter volume of 1 liter meanwhile the maximum volume of 15 liters.
Desain Antena Mikrostrip dengan Multi Band Frekuensi Menggunakan Metode Parasitik Alam, Syah; Rizka, Nadia Media; Surjati, Indra; marlina, Pipit Dewi; Tjahjadi, Gunawan
Jurnal Teknik: Media Pengembangan Ilmu dan Aplikasi Teknik Vol 19 No 1 (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 | Full PDF (986.794 KB) | DOI: 10.26874/jt.vol19no01.138

Abstract

Dalam makalah ini, perancangan dan realisasi antena mikrostrip berbentuk persegi dioptimasi menggunakan kaidah parasitik untuk menghasilkan multi frekuensi. Metode parasitik menghasilkan rentang frekuensi yang berbeda dalam satu antena. Antena di rancang menggunakan jenis substrat FR4 Epoxy dengan nilai konstanta dielektrik sebesar 4,3, ketebalan sebesar 1,6 mm, dan tangent loss sebesar 0,0265. Hasil pengukuran menunjukkan bahwa antena persegi dengan metode parasitik menghasilkan tiga frekuensi kerja. Pada frekuensi 1815 MHz, 1935 MHz, dan 2060 MHz menghasilkan bandwidth masing-masing 2,4 %, 2,8 % dan 4,36 %. Hasil ini menunjukkan bahwa antena yang diusulkan dapat direkomendasikan sebagai kandidat antena penerima pada sistem komunikasi nirkabel.
Design of Generating Dual Frequency Operation for Triangular Microstrip Antenna Using Electromagnetic Coupling Surjati, Indra; Rahardjo, Eko Tjipto; Hartanto, Djoko
Makara Journal of Technology Vol. 9, No. 2
Publisher : UI Scholars Hub

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Abstract

Design of Generating Dual Frequency Operation for Triangular Microstrip Antenna Using Electromagnetic Coupling. A new design is proposed in this paper by applying a pair of slits using a microstrip feed line. Therefore the microstrip line feeding system is electromagnetically coupled to the patch. The antenna works at two different frequencies in the range from 2 GHz to 4 GHz (S band frequency). The results of the simulation shows that the dual frequency operation can be created when the slit width is 1 mm and the height of the slits ranges from 10 mm to 14 mm with inter slit distance of 3 mm, 5 mm and 7 mm as well.
Ultra-Wideband Notched Characteristic Fed by Coplanar Waveguide Hadinegoro, Rastanto; Ningsih, Yuli Kurnia; Surjati, Indra
Makara Journal of Technology Vol. 18, No. 3
Publisher : UI Scholars Hub

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Abstract

In this paper, a novel Ultra-Wide Band (UWB) notch patch antenna with co-planar waveguide (CPW) fed is presented. This antenna only used one layer and the patch antenna is constructed on the first layer and back to back with CPW fed and bottom part is ground plane. The width notch is used to achieve the UWB characteristic. The results shown that the impedance bandwidth is 1130 MHz (1.662–2.792 GHz) or about 50.7% for VSWR <2.
Bandwidth Enhancement of Microstrip Antenna Using Dual Feed Line with Array 2x1 element for Radar Applications Kuswanto, Hery; Alam, Syah; Surjati, Indra
JOURNAL OF INFORMATICS AND TELECOMMUNICATION ENGINEERING Vol. 7 No. 2 (2024): Vol. 7 No. 2 (2024): Issues January 2024
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jite.v7i2.10409

Abstract

Radar communication systems are needed to predict weather and other military needs. One of the important parameters required for a radar communication system is an antenna with high performance and broad bandwidth that can improve the resolution. The research proposes a single patch microstrip antenna that is rectangular and has a 8 GHz resonance frequency for radar applications that have high bandwidth and performance. The antenna was developed with two dual feed lines connected to the peradiation element with the 2x1 element array technique aimed at increasing the bandwidth of the frequency. The antenna is designed using a FR-4 substrate with a tangent loss of 0.0265, a dielectric constant ( |r) = 4.3, a substrat thickness (h) = 1.6 mm. The dimensions of the rectangular single patch microstrip antenna substrata are 20x20 mm2 and 35x35 mm2 for the dual feed line antenna design. Simulation results from the antenna development showed a 159.62% increase in bandwidth compared to the original antenna design. The reflection coefficient also increased from the original design antenna, which was -16.36 dB, to -25.64 dB or an increase of 56.72%. This antenna is very suitable and recommended to be applied as a receiver antenna on radar communications systems
High Gain Plannar Series Array 8x2 Element Microstrip Antenna Using Spiral Stub For 5G Communication System Suryadi, Suryadi; Alam, Syah; Surjati, Indra; Ningsih, Yuli Kurnia
JOURNAL OF INFORMATICS AND TELECOMMUNICATION ENGINEERING Vol. 8 No. 1 (2024): Issues July 2024
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jite.v8i1.11267

Abstract

Sistem komunikasi 5G membutuhkan antena sebagai perangkat penerima yang memiliki kinerja tinggi termasuk bandwidth yang lebar dan gain yang tinggi. Antena mikrostrip mempunyai kelebihan seperti biaya yang murah, cocok untuk frekuensi tinggi dan mudah diintegrasikan dengan perangkat lain. Salah satu kelemahan antena mikrostrip adalah gain yang rendah. Oleh karena itu, antena mikrostrip dengan gain tinggi sangat dibutuhkan untuk mendukung sistem komunikasi 5G. Penelitian ini memberikan solusi dengan mengusulkan antena mikrostrip dengan gain tinggi yang beroperasi pada frekuensi resonansi 3,5 GHz untuk sistem komunikasi 5G. Antena usulan dikembangkan dalam lima tahap dimulai dari satu elemen, susunan seri dua elemen, susunan seri 4 elemen, susunan seri 8 elemen dan susunan seri plannar 8x2 elemen. Teknik susunan seri plannar dan menggunakan spiral stub pada line feed serta slit diusulkan untuk meningkatkan gain antena mikrostrip. Dalam tulisan ini, simulasi dan pengukuran dari antena usulan ditampilkan dan dibandingkan secara komprehensif untuk menunjukkan peningkatan kinerja dari setiap tahap pengembangan model usulan. Berdasarkan hasil pengukuran, antena yang dirancang memiliki gain maksimum sebesar 13,08 dB pada frekuensi resonansi 3,5 GHz. Gain antena masing-masing meningkat 118 % dibandingkan dengan antena elemen tunggal. Oleh karena itu, antena usulan ini dapat direkomendasikan untuk digunakan sebagai antena penerima sistem komunikasi 5G
Desain Antena Mikrostrip Array 2x1 Elemen dengan Teknik Inset dan Slit untuk Sistem Komunikasi 5G Anindito, Atria; Putranto, Agam; Alam, Syah; Surjati, Indra; Sari, Lydia; Vaswani, Rakesh
Jurnal Telematika Vol. 16 No. 1 (2021)
Publisher : Yayasan Petra Harapan Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61769/telematika.v16i1.388

Abstract

The Fifth Generation (5G) communication system promises high data transfer rates. It requires an antenna that can operate with gain and bandwidth at 3.4 – 3.6 GHz frequency range which complies with 5G frequency regulation. This study proposes an optimized 2x1 element array microstrip antenna using inset and slit techniques. The antenna is designed to operate at 3.5 GHz for 5G communication systems. The array method is used to increase the gain value, while inset and slit techniques are used to reduce the reflection coefficient (S11). From the design and simulation results, the reflection coefficient value is – 24 dB and the bandwidth is 360 MHz (3.32 GHz -3.68 GHz), or 10.28%, at a frequency of 3.5 GHz. The use of the array method worked in increasing the gain by 66.67% and the bandwidth by 70.43%, compared to single-element antennas.  Sistem komunikasi Generasi Kelima (5G) menjanjikan kecepatan transfer data yang sangat tinggi sehingga memerlukan antena yang dapat bekerja dengan penguatan dan bandwidth pada rentang frekuensi 3,4 hingga 3,6 GHz yang sesuai dengan regulasi frekuensi 5G. Penelitian ini mengusulkan desain antena mikrostrip array 2x1 elemen yang dioptimalisasi menggunakan teknik inset dan slit. Antena dirancang untuk bekerja pada frekuensi kerja 3.5 GHz untuk sistem komunikasi 5G. Metode array digunakan untuk meningkatkan nilai gain dari antena, sedangkan teknik inset  dan slit digunakan untuk mereduksi nilai koefisien refleksi (S11) dari antena yang diusulkan. Dari hasil perancangan dan simulasi didapatkan nilai koefisien refleksi – 24 dB dan bandwidth 360 MHz (3,32 GHz hingga 3,68 GHz), atau 10,28%, pada frekuensi 3,5 GHz. Penggunaan metode array berhasil meningkatkan gain sebesar 66,67% dan bandwidth sebesar 70,43% dibandingkan dengan antena single element.
Perancangan Antena MIMO Microstrip Rectangular Array dengan Slot U Sanaz, Zikra Aulia; Alam, Syah; Surjati, Indra
Jurnal Telematika Vol. 16 No. 2 (2021)
Publisher : Yayasan Petra Harapan Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61769/telematika.v16i2.394

Abstract

The 5th generation (5G) is expected to meet the needs of telecommunications technology in the future. According to the Research Team of the SDPPI Research and Development Center for Resources and Equipment for Post and Information Technology, the Ministry of Communications and Informatics has several advantages, namely: high data rate, reduced latency, increased capacity of connected devices, and more energy-efficient. Microstrip antenna for wireless communication has several drawbacks such as low gain, poor directionality, and multipath fading. Selection of multi-antenna by applying massive MIMO on eMBB to avoid multipath fading, provide gain, and greater capacity to serve many users simultaneously. In Indonesia, based on the Indonesian Radio Frequency Spectrum Table, the priority is in the 3.4-4.2 GHz frequency range. The substrate used is RT Duroid 5880 with a dielectric constant of 2.2. The patch used is rectangular with slots to increase the antenna bandwidth. In this study, the performance of the MIMO antenna has reached the target, where the antenna isolation loss is -63.16 dB so that the correlation coefficient value is 3.97 x 10-7, and the diversity gain is 10 dB.  Generasi kelima (5G) diharapkan dapat memenuhi kebutuhan teknologi telekomunikasi di masa depan. Beberapa kelebihan yang dimiliki teknologi Generasi Kelima (5G), menurut Tim Peniliti Puslitbang SDPPI (Pusat Penelitian dan Pengembangan Sumber Daya dan Perangkat Pos dan Informatika) Kemkominfo, yaitu: data rate tinggi, mengurangi latency, meningkatkan kapasitas perangkat terhubung, dan lebih hemat energi. Antena microstrip memiliki beberapa kekurangan, yaitu gain yang rendah, keterarahan yang kurang baik, dan multipath fading. Pemilihan multi-antena dengan cara mengaplikasikan massive MIMO pada eMBB digunakan untuk menghindari multipath fading, memberikan gain, dan kapasitas yang lebih besar untuk melayani user yang banyak secara bersamaan. Di Indonesia, berdasarkan Tabel Spektrum Frekuensi Radio Indonesia, diutamakan dalam rentang frekuensi 3,4—4,2 GHz. Substrat yang digunakan yaitu RT Duroid 5880 dengan konstanta dielektrik 2,2. Patch yang digunakan adalah rectangular dengan penambahan slot pada patch tersebut untuk meningkatkan bandwidth antena. Pada penelitian ini kinerja antena MIMO yang didapatkan telah mencapai target, di mana besar isolation loss antena sebesar -63,16 dB sehingga didapatkan nilai koefisien korelasi sebesar 3,97 x 10-7 , dan diversity gain sebesar 10 dB.
Antena Mikrostrip Triple-Band untuk Aplikasi LTE dan L-Band Radar Hilyawan, Mohamad Reynaldy; Alam, Syah; Surjati, Indra
Jurnal Telematika Vol. 18 No. 1 (2023)
Publisher : Yayasan Petra Harapan Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61769/telematika.v18i1.554

Abstract

In this research, microstrip antenna design is carried out using the inset and slot methods. This research proposes a microstrip antenna with three working frequencies, namely 1.3 GHz for radar applications and 1.8 and 2.6 GHz for 4G LTE applications. To fulfill the proposal, the type of substrate used is FR4 with a value of 4.3 for ɛr and 1.6 millimeters for h. This research resulted in the initial design of a dual-band microstrip antenna that works at frequencies of 1.8 and 2.6 GHz for 4G LTE applications. Furthermore, the proposed T-slot and U-slot methods are added to generate a resonant frequency at 1.3 GHz for radar applications. The return loss results in the inset method are -20.76 dB at 1.79 GHz and -20.20 dB at 2.60 GHz. The addition of T-slot with fixed inset parameters results in -11.66 dB at 1.37 GHz, -17.31 dB at 1.95 GHz, and -20.56 dB at 2.59 GHz, then the addition of inverted U-slot results in -33.49 dB at 1.30 GHz, -22.13 dB at 1.80 GHz and -21.36 dB at 2.59 GHz. The simulation results obtained bandwidth of the working frequency at the third iteration are 1.04%, 2.22% and 1.18%. This research is simulated and designed with Simulator software. This research can be recommended as a radar and LTE communication system.
Co-Authors A.A. Ketut Agung Cahyawan W Agung Prabowo Alfian Noor Faiq Alga Maulana, Gusti Anindito, Atria Dian Widi Astuti, Budi Irawan Prima Putra, Dian Widi Astuti, Djoko Hartanto Doris, Muhamad Eko Rahardjo Eko Tjipto Rahardjo Endah Setyaningsih F.X. Sigit Wijono Gagarin Irianto, Chairul Gunawan Tjahjadi Hendri Septiana Henry Chandra Herbowo Hardianto Hermawan, Stevanie Hilyawan, Mohamad Reynaldy Iznih Iznih, Iznih Kuswanto, Hery Lydia Sari Marlin Malluka marlina, Pipit Dewi Miranti Miranti Muhammad Ilham Oky Danubrata PUDJI ASTUTI Putranto, Agam R. Deiny Mardian Wijayapraja Rastanto Hadinegoro Reynaldhy Hilyawan, Muhammad Rizka, Nadia Media Sanaz, Zikra Aulia Saragi, Simon Jansen Sari, Fitri Kurnia Setiawan, Tata Sunarto Sunarto Suryadi Suryadi swasono adi, Tri Syah Alam Syah Alam TANUWIJAYA, JUSTIN Teguh Firmansyah Vaswani, Rakesh Wayoi, Cahya Muzaki Yuli Kurnia Ningsih Yuli Kurnia Ningsih, Yuli Zahriladha Zakaria