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All Journal Sinergi Prosiding Semnastek ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika TELKA - Telekomunikasi, Elektronika, Komputasi dan Kontrol TEKTRIKA - Jurnal Penelitian dan Pengembangan Telekomunikasi, Kendali, Komputer, Elektrik, dan Elektronika Jurnal Teknologi Informasi dan Pendidikan IJAIT (International Journal of Applied Information Technology) JMECS (Journal of Measurements, Electronics, Communications, and Systems) IJITEE (International Journal of Information Technology and Electrical Engineering) Charity : Jurnal Pengabdian Masyarakat Prosiding SNAST ALINIER: Journal of Artificial Intelligence & Applications Jurnal Nasional Teknik Elektro dan Teknologi Informasi SinarFe7 eProceedings of Engineering Journal of Computer Engineering: Progress, Application and Technology Jurnal Rekayasa elektrika Jurnal INFOTEL SNTE Jurnal Nasional Sains dan Teknik
Levy Olivia Nur
Universitas Telkom
Arts Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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PERANCANGAN ANTENA MIKROSTRIP UNTUK MENDEKTEKSI PERUBAHAN GULA DARAH SECARA NON-INOVASIF Putri Indra Wahyuningsih; Levy Olivia Nur; Edwar Edwar
TEKTRIKA Vol 7 No 2 (2022): TEKTRIKA Vol.7 No.2 2022
Publisher : Telkom University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/tektrika.v7i2.5855

Abstract

Monitoring of glucose levels in the blood often using invasive methods. Blood sampling requires the puncture of a needle on the skin which is used for periodic blood tests over a period of time as a monitor for glucose levels in the blood. This method causes pain, discomfort, and has a risk of irritation/infection. Measurements will be made on three concentrations of glucose, namely hypoglycemia, normal glucose, and hyperglycemia. This technique is based on the relationship of permittivity, and the conductivity of the skin associated with glucose levels in the blood. A narrowband microstrip antenna that works at a frequency of 1,27 GHz. From the measurement results on the tested antenna, it can work at a frequency of 1,27 GHz in off-body and on-body conditions. After simulating the antenna with three glucose concentrations, an analysis was obtained, namely the smaller the Return Loss and VSWR values, the greater the concentration of glucose in the blood. Keywords: antenna, microstrip, glucose, blood glucose level (BGL), narrowband
Pengembangan Antena Bowtie 2,1 GHz Terintegrasi Artificial Magnetic Conductor (AMC) untuk Aplikasi Antena Transmitter pada Sistem Ground Penetrating Radar (GPR) Levy Olivia Nur; Raeida Widyananda; Heroe Wijanto
Jurnal Rekayasa Elektrika Vol 16, No 3 (2020)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (999.061 KB) | DOI: 10.17529/jre.v16i3.16742

Abstract

This study presented the development of the bowtie antenna system design as the transmitter in the Ground Penetrating Radar (GPR) system. The Artificial Magnetic Conductor (AMC) reflector was integrated into the antenna system as a ground plane to obtain a high gain, increase bandwidth and produce a low-profile antenna. The antenna is designed to work at a center frequency of 2.1 GHz with a range of 1.6 - 2.6 GHz and has ultrawideband (UWB) characteristics with a fractional bandwidth of ≥ 25%. In addition, the value of late-time ringing must also be reduced to -30 dB to prevent masking effects on the detected object. Antenna modeling and simulation was done to obtain the optimum prototype design. Bowtie antenna realization was carried out using RT Duroid 5880 as a substrate with dielectric constant (εr) = 2.2 and thickness (h) = 1.57 mm. The AMC reflector was fabricated with FR-4 Epoxy substrate with a dielectric constant (εr) = 4.4 and thickness (h) = 1.6 mm. The antenna realization results show that the antenna has bandwidth = 510 MHz, return loss = -15.17 dB and VSWR = 1.15. The AMC integrated bowtie antenna radiation pattern produces a unidirectional pattern with gain = 4.2 dB. However, the ringing level becomes high by -19.18 dB. Further development is needed to achieve ringing level values   that meet the GPR antenna system specifications. 
Design and Realization of Metamaterial Antenna for Enhancement of Antenna Parameters in 5G Frequency Daniel Christian Sianipar; Lutfianne Rafasari; Harfan Hian Ryanu; Bambang Setia Nugroho; Levy Olivia Nur
JMECS (Journal of Measurements, Electronics, Communications, and Systems) Vol 10 No 1 (2023): JMECS
Publisher : Universitas Telkom

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/jmecs.v10i1.5793

Abstract

Technological advancements, particularly in telecommunications, are accelerating. The speed of which data is sent and received is a critical demand in the rapidly expanding telecommunications sector. Fifth - generation (5G) technology necessitates the use of antenna that can effectively send and receive data. This study examines the design and realization of a microstrip antenna that operates at 3.5 GHz utilizing Electromagnetic Band Gap (EBG). The usage of an EBG can optimize antenna quality and dimensions. Based on the simulation results, the original antenna without EBG obtained S11 of -30.76 dB with a Gain of 2.653 dBi at 3.5 GHz. By adding the EBG structure with 4 x 4 configuration, the simulation results show a better S11 of -40.021dB and a higher Gain of 4.229 dBi, at a distance of 5 mm between the antenna and the EBG structure. For the measurement results, this antenna obtained S11 of -33.088 dB with a Gain of 4.3 dBi. In addition, there is a change in the radiation pattern between the Regular Antenna and the Antenna with EBG. In the antenna radiation pattern with EBG the current direction is reflected in phase and result in constructive reflection. Based on the parameters obtained from measurements and simulations, the antenna has achieved the target specification and can be used at a frequency of 3.5 GHz.
Bahasa Inggirs Salwa Salsabila; Rina Pudjiastuti; Levy Olivia Nur; Harfan Hian Ryanu; Bambang Setia Nugroho
JURNAL INFOTEL Vol 15 No 3 (2023): August 2023
Publisher : LPPM INSTITUT TEKNOLOGI TELKOM PURWOKERTO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20895/infotel.v15i3.962

Abstract

Massive MIMO Antenna Design results in a very large antenna size that hinders the design process. The arrangement of Massive MIMO Antennas which consists of many antenna elements is a challenge in the design process due to the limited capability of the simulation software and the complicated process. Thus, a scalability technique is used to predict the specification results produced by a Massive MIMO Antenna array with a certain configuration based on a simple MIMO Antenna array with a 2x2, 4x4, 8x8, 16x16 MIMO element configuration scheme, etc. exponential increments. This research will discuss the scaling process to predict the specifications of a Massive MIMO Antenna array. The designed MIMO antenna arrangement is based on the design of a rectangular antenna with a truncated corner and a circular antenna with an X slot for further design with various types of configurations that work at a frequency of 3.5 GHz.
IDENTIFIKASI KARAKTERISTIK MATERIAL DARI BAHAN BATIK TRADISIONAL INDONESIA Harfan Hian Ryanu; Ummi Jumria; Hawary Siddik; Muhammad Daffa Hamsy; Nabila Rizqa Damayanti; Regita Nurul Fauziah; Bambang Setia Nugroho; Levy Olivia Nur
TEKTRIKA Vol 8 No 1 (2023): TEKTRIKA Vol.8 No.1 2023
Publisher : Telkom University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/tektrika.v8i1.6062

Abstract

Wearable antenna has an important role in WBAN (Wireless Body Area Network) as the main component that supports on-body communication. This study focuses on the characterization of Material Under Test (MUT) from Indonesian traditional batik material using the CSRR (Complementary split ring resonator) sensor extraction method. The frequency response and magnitude of S21 are used to extract the relative permittivity and loss tangent of the material. From all the responses that appear, a simulation and measurement of wearable antennas is carried out with a working frequency of 2.4. GHz. The antenna with the most similar simulation and measurement results is then selected as a candidate for relative permittivity and loss tangent of the material. From all the 6 frequency responses that emerged from CSRR sensor measurements, the relative permittivity value of 2.083 and the loss tangent of 0.144 achieved a good similarity between the measurement and simulation with an accuracy rate of 99.17%. The final design of the proposed wearable antenna is also validated to transmit heart rate data using the ESP32 microcontroller to the internet using a 2.4 GHz frequency Wifi access point. Key Words: Wearable antenna, extraction of material characteristics, wireless body area network (WBAN), CSRR, material under test, vital signs
Pengembangan Antena Bowtie 2,1 GHz Terintegrasi Artificial Magnetic Conductor (AMC) untuk Aplikasi Antena Transmitter pada Sistem Ground Penetrating Radar (GPR) Levy Olivia Nur; Raeida Widyananda; Heroe Wijanto
Jurnal Rekayasa Elektrika Vol 16, No 3 (2020)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17529/jre.v16i3.16742

Abstract

This study presented the development of the bowtie antenna system design as the transmitter in the Ground Penetrating Radar (GPR) system. The Artificial Magnetic Conductor (AMC) reflector was integrated into the antenna system as a ground plane to obtain a high gain, increase bandwidth and produce a low-profile antenna. The antenna is designed to work at a center frequency of 2.1 GHz with a range of 1.6 - 2.6 GHz and has ultrawideband (UWB) characteristics with a fractional bandwidth of ≥ 25%. In addition, the value of late-time ringing must also be reduced to -30 dB to prevent masking effects on the detected object. Antenna modeling and simulation was done to obtain the optimum prototype design. Bowtie antenna realization was carried out using RT Duroid 5880 as a substrate with dielectric constant (εr) = 2.2 and thickness (h) = 1.57 mm. The AMC reflector was fabricated with FR-4 Epoxy substrate with a dielectric constant (εr) = 4.4 and thickness (h) = 1.6 mm. The antenna realization results show that the antenna has bandwidth = 510 MHz, return loss = -15.17 dB and VSWR = 1.15. The AMC integrated bowtie antenna radiation pattern produces a unidirectional pattern with gain = 4.2 dB. However, the ringing level becomes high by -19.18 dB. Further development is needed to achieve ringing level values   that meet the GPR antenna system specifications. 
IDENTIFIKASI KARAKTERISTIK MATERIAL DARI BAHAN BATIK TRADISIONAL INDONESIA Ryanu, Harfan Hian; Jumria, Ummi; Siddik, Hawary; Hamsy, Muhammad Daffa; Damayanti, Nabila Rizqa; Fauziah, Regita Nurul; Nugroho, Bambang Setia; Nur, Levy Olivia
TEKTRIKA Vol 8 No 1 (2023): TEKTRIKA Vol.8 No.1 2023
Publisher : Telkom University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/tektrika.v8i1.6062

Abstract

Wearable antenna has an important role in WBAN (Wireless Body Area Network) as the main component that supports on-body communication. This study focuses on the characterization of Material Under Test (MUT) from Indonesian traditional batik material using the CSRR (Complementary split ring resonator) sensor extraction method. The frequency response and magnitude of S21 are used to extract the relative permittivity and loss tangent of the material. From all the responses that appear, a simulation and measurement of wearable antennas is carried out with a working frequency of 2.4. GHz. The antenna with the most similar simulation and measurement results is then selected as a candidate for relative permittivity and loss tangent of the material. From all the 6 frequency responses that emerged from CSRR sensor measurements, the relative permittivity value of 2.083 and the loss tangent of 0.144 achieved a good similarity between the measurement and simulation with an accuracy rate of 99.17%. The final design of the proposed wearable antenna is also validated to transmit heart rate data using the ESP32 microcontroller to the internet using a 2.4 GHz frequency Wifi access point. Key Words: Wearable antenna, extraction of material characteristics, wireless body area network (WBAN), CSRR, material under test, vital signs
Perancangan Antena Metamaterial Patch Circular Untuk Teknologi 5G Dengan CSRR Pada Frekuensi 3.5 GHz Tri Cahyani, Kenita; Olivia Nur, Levy; Hian Ryanu, Harfan
ALINIER: Journal of Artificial Intelligence & Applications Vol. 4 No. 1 (2023): ALINIER Journal of Artificial Intelligence & Applications
Publisher : Program Studi Teknik Elektro S1 ITN Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/alinier.v4i1.6029

Abstract

The development of 5G technology at this time has a much faster speed, capacity and latency in accessing data compared to 4G technology. 5G technology has several components that are influential in the application of 5G technology, one of which is the antenna. Microstrip antennas are antennas that have simple materials, smaller antenna dimensions, so that production costs are cheaper, affordable and the performance of microstrip antennas is quite good. Microstrip antenna has several drawbacks, namely low gain and not wide bandwidth. In this study a circular patch microstrip antenna was designed using FR-4 material using a relative dielectric constant of 4.4, a loss tangent of 0.02 and a substrate thickness of 1.6 mm. The microstrip antenna that will be added to the groundplane section uses a metamaterial structure, namely the Complementary Split-Ring Resonator (CSRR) which operates at a frequency of 3.5 GHz. The addition of the CSRR metamaterial structure aims to increase antenna bandwidth and miniaturization. The simulation results of a microstrip antenna without CSRR can work at a frequency of 3.5 GHz with a return loss of -15.71 dB, a VSWR of 1.39, a gain of 2.121 dBi, a bandwidth of 120 MHz and the resulting radiation pattern is unidirectional. While the antenna that has been added CSRR at a frequency of 3.5 GHz has a return loss of -19.50 dB, a VSWR of 1.23, a gain of 1.454 dBi, a bandwidth of 410 MHz, the resulting radiation pattern is bidirectional and the antenna undergoes miniaturization at a groundplane width of 18%. That way the antenna using the CSRR method can increase bandwidth and miniaturization.
The Wearable Band with Electromagnetic Band Gap Antenna for Heart Rate Detection System Sitepu, Karolina; Hafizha, Syahna; Riansyah, Aldi; Salim, Akhmad Raihan; Prabowo, Vinsensius Sigit Widhi; Nur, Levy Olivia; Ryanu, Harfan Hian
JMECS (Journal of Measurements, Electronics, Communications, and Systems) Vol. 11 No. 1 (2024): JMECS
Publisher : Universitas Telkom

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/jmecs.v11i1.7662

Abstract

Wearable antennas are antennas that can be applied to the human body and are made of flexible materials, making them ideal for healthcare technology. The quality of the signal received by the antenna directly affects the accuracy of heart rate detection If the antenna measurements indicate strong, clear signal reception, the heart rate monitor can accurately detect and interpret heartbeats. In this study, a planar monopole antenna was designed and developed using a circular patch with Ultra Wide Band (UWB) characteristics. The FR-4 and copper were utilized for the substrate and the ground plane and patch, respectively. Simulations and measurements were conducted at 2.4 GHz and 5 GHz. The antenna with the added EBG structure showed improved performance compared to the conventional antenna, exhibiting better S11 and VSWR values. Additionally, all radiation patterns were unidirectional.  Applying this antenna to transmit heart rate measurements results in an accuracy of  94.34% compared to conventional onsite heart rate measurement. This study demonstrates that the wearable band provides real-time heart rate monitoring, while the EBG antenna enhances sensitivity and accuracy in detecting heart rate. This research can be enhanced by optimizing the EBG design and conducting additional trials to ensure the device performs well for a variety of users.
Perancangan dan Realisasi Antena Mikrostrip Fraktal KÓ§ch untuk Aplikasi TV Digital di Dalam Ruangan ANGGELINA, IRSANDI; YUNITA, TRASMA; NUR, LEVY OLIVIA
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 8, No 1: Published January 2020
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v8i1.16

Abstract

ABSTRAK Siaran TV digital umumnya menggunakan antena tipe Yagi dan Kubikal yang berukuran besar sehingga tidak fleksibel digunakan di dalam ruangan. Penelitian ini merancang dan merealisasikan antena mikrostrip miniaturisasi fraktal Köch agar dimensi antena lebih kecil dan bandwidth lebih besar sehingga cocok digunakan di dalam ruangan. Miniaturisasi antena berupa fraktal Köch iterasi-1 pada patch dan teknik slot iterasi-2 pada ground plane menggunakan pencatuan mikrostrip proximity coupled feed pada alokasi frekuensi TV digital Indonesia 478 – 694 MHz dengan bandwidth 216 MHz. Antena dirancang pada software perancang antena, direalisasikan, diukur, dan diaplikasikan pada TV digital. Hasil simulasi antena menunjukkan bandwidth yang lebih besar dari spesifikasi yaitu 245,99 MHz pada rentang frekuensi 477,81 – 723,8 MHz. Return loss dan gain untuk direalisasikan sebesar -16,67 dB dan 3,085 dB pada frekuensi tengah 586 MHz. Pola radiasi berbentuk bidirectional dan polarisasi berbentuk linier. Panjang dan lebar antena hasil realisasi 17,33 cm X 17,33 cm. Kata Kunci: TV digital, antena, mikrostrip, Fraktal, Köch ABSTRACT Digital TV broadcasting generally uses large Yagi and Cubical type antennas, so it is not flexible to be used indoor. This study designs and applies miniaturization of Köch fractal microstrip antennas to obtain smaller dimensions and larger bandwidth. The miniaturization of antenna are Köch fractal iteration-1 on patch and iteration-2 slot technique on ground plane using proximity coupled feed at frequency allocation 478 – 694 MHz and the bandwidth is 216 MHz. The antenna was designed in software and developed, measured, and applied to digital TV. Antenna simulation results show a greater bandwidth than specification, 245.99 MHz, at the frequency range of 477.81 – 723.8 MHz. Return loss and gain simulation results that meet the specifications to be applied to digital TV antennas are -16.67 and 3.085 dB at 586 MHz center frequency. The radiation pattern is bidirectional and polarization is linear. The length and width dimensions of the antenna is 17.33 cm × 17.33 cm. Keywords: TV digital, antenna, microstrip, Fractal, Köch
Co-Authors A, Ikhwanul Arif Qhalbina Aan Sahat M P Turnip Achmad Ali Muayyadi Achmad Munir Achmad Munir Adha Suhariyono Adit Kurniawan Ahmed, Raka Abid Kholish Aisyah Novfitri Ajie, Lenggana Bayu Aksanul Amin Alhafizh, Dzaki Aloysius Adya Pramudita Alvian Raharjo Aji Amanda Nurul Islam Ali Analisa Nadhira Lestari Anastasia Vera Ruth ANGGELINA, IRSANDI Annam, Imam Chairul Annisa Safira Rachman Arfan Ridwan Hartawan Arfan Ridwan Hartawan Arif, Ikhwanul Ash-Shiddiq, Haniifah Arif Austin Bengeth I. Tambunan Auzano Rabyndra Zhafiri Bagus Aditya Bambang Setia Nugroho Bengawan Alfaresi Budi Syihabuddin Damayanti, Nabila Rizqa Daniel Christian Sianipar Darmawan, Raihan Putra Degit Refniawan Dwi Banyu Prawito Dwiyanto Dwiyanto, Dwiyanto Dzecky Dzackwan Hady Edwar EDWAR EDWAR EDWAR Fadiel, M. Gani Fajar Gunawan FARDAN FARDAN Fauziah, Regita Nurul Fikana, Zahara Nur Ghazwa Azizul Asdhar Gilang Dewangga Gilda Priscilla Gina Hapshah Arrahmah Gurning, Shanty Ezra Rianauli Hafizha, Syahna Hafshin Habibie Tanjung Hamsy, Muhammad Daffa Haniifah Arif Ash-Shiddiq Harfan Hian Ryanu Hawary Siddik Hendro Fransniko Situmeang Heroe Wijanto Hsb, Umar Muaz`zad I Made Santanu Wiryawan Ikbar, Naufal Ikhwan Muzzaki Iman Hedi Santoso Irhamni, Robby Iwan Iwut Tritoasmoro Izzan Radhi Mafazi Jamal, Muh. Arham Jones A.S., Kevin Jumria, Ummi Karimafikri, Aisha Aulia Kevin, Raymondus Khairani, Hania Silva Khoirul Anwar Lazuardi Rea Rizkina Liska Ammai Lumbantobing, Ferdi Kurniawan Lutfianne Rafasari M Eiqko Eiqko M Fitriansyah Eka Putra M. Maulana Nugraha Macho Revelino Siahaan Maesharoh, M Imas Masna, Haris Azmil Maulani, Azka Mochamad Ryan Fajar Nurdin Muhammad Agy Ramdhan Muhammad Daffa Hamsy Muhammad Fadhil Muhammad Fathan Hizbuddin Muhammad Rustiyarso Nabila Rizqa Damayanti Nabilah, Nisrina Nachwan Mufti A Nawawi, Zainudin Ngurah Pratyusa Dharma Cretrya Nopian Teguh Susyanto Nopian Teguh Susyanto Nugroho, S.T., M.T, Dr. Bambang Setia Nurhaliza, Salwa Pandu Andika Darmawan Paramitha, Camilla Pradnya Phaksi Ghagono Awang Murti Prasetya, Rizky Aris Putra, Ari Yanuar Putri Indra Wahyuningsih Putri Indra Wahyuningsih Radial Anwar, Radial Raeida Widyananda Raihan Anshari Raihan, Mochamad Alif Raihan, Muhammad Wildan Rasheed Abdurrahman Mulyadi Rasheed Abdurrahman Mulyadi Rayhan Almahdy Regita Nurul Fauziah Rendy Anugerah Reza Firsandaya Malik Reza Firsandaya Malik Riansyah, Aldi Rina Pudji Astuti Ruben Samuel Marojahan Purba Sahara, Ghehena Latipah Adha Salim, Akhmad Raihan Salsabila, Salwa Salwa Salsabila Saputra, Yusuf Eka Sarbrani, Athalah Rafif Irsyach Sendyartha, Aurellia Fieldza Sevierda Raniprima Siddik, Hawary Sitepu, Karolina Sitorus, Saidhatul Munawaroh Sudung Parjuangan Parhusip Sugihartono Sugihartono Susanto, Rizky Bayu Susilawati Susilawati Tarigan, Stepen Martinus Tri Cahyani, Kenita Ummi Jumria Vinsensius Sigit Widhi Prabowo Wenda Adi Irawan Winala, Isra Putri Windi Andaresta Nurul Hakim Wirahilm, Muhammad Fuad Yannisa, Alfia Zahra YUNITA, TRASMA Yussi Perdana Saputera Yustina Wahyu Andika Yustina Wahyu Andika Yuyu Wahyu Yuyu Wahyu Yuyu Wahyu Zainudin Nawawi Zuchra Latifah Zulfi Zulfi