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All Journal Jurnal Ilmiah Poli Rekayasa RESISTOR (Elektronika Kendali Telekomunikasi Tenaga Listrik Komputer) International Journal of Wireless And Multimedia Communications
Nursal, Firdaus
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Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Materials Science & Nanotechnology

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Perancangan Antena Ultra Wideband Multiple-Input Multiple-Output 4x4 Dengan Polarization Diversity Yuhanef, Afrizal; Nursal, Firdaus; Saputri, Trianti Indra
RESISTOR (Elektronika Kendali Telekomunikasi Tenaga Listrik Komputer) Vol 7, No 1 (2024): RESISTOR (Elektronika Kendali Telekomunikasi Tenaga Listrik Komputer)
Publisher : Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/resistor.7.1.1-10

Abstract

Antena UWB-MIMO menjadi solusi yang potensial dalam menghadirkan komunikasi nirkabel yang unggul. Antena UWB MIMO merupakan antena yang dapat menyediakan kapasitas bandwidth yang luas, kecepatan data yang tinggi, dan kualitas kanal transmisi yang optimal. Dalam komunikasi nirkabel, sifat-sifat antena yang diperlukan meliputi ukuran yang lebih kecil, pola radiasi omnidirectional, dan kemampuan untuk berintegrasi dengan perangkat lain. Oleh karena itu, tantangan utama dalam merancang antena UWB MIMO adalah bagaimana mencapai desain antena yang lebih kecil dan mewujudkan pola radiasi omnidirectional untuk setiap elemen antena UWB-MIMO. Pada penelitian ini dirancang antena UWB MIMO modifikasi dengan bahan FR-4 memiliki ukuran yang sangat kecil yaitu 39 mm x 39 mm x 1,6 mm. Antena dibuat dengan bentuk ground parsial dan masing-masing elemen saling tegak lurus dengan Polarization Diversity.  Antena ini memperoleh bandwidth yang luas yaitu 2,1-12.7 GHz, VSWR < 2, rentangan gain pada 2,3-3,5 dBi, isolasi yang optimal -15 dB, envelop correlation coefficient (ECC< 0,007) dan pola radiasi omnidirectional di setiap element antena.
ANTENA MIMO-UWB 4X4 DUAL BANDS NOTCHED DENGAN MENGGUNAKAN METODE EBG DAN SLITS Jamil, Wahdina; Nursal, Firdaus; yulindon, Yulindon
Jurnal Ilmiah Poli Rekayasa Vol 19, No 1 (2023): Oktober
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jipr.19.1.342

Abstract

In this paper, a Multiple-Input-Multiple-Output (MIMO) antenna that can work in Ultra-Wideband (UWB) technology is presented. The antenna can work in frequencies of 3.1-10.6 GHz, has dual bands notched, and in small dimensions at once. The antenna is made in size 34 x 34 x 1.6 mm using a 4-element planar monopole antenna with L-shape and C-shape slits on the radiator. This antenna research was designed and simulated using CST Studio Suite 2019. The design results were fabricated for testing through a Vector Network Analyzer and Anechoic Chamber. The ground plane on the rhombic slot-shaped antenna by utilizing the slot on the antenna radiator produces notched bands from simulations at 3.39-3.64 GHz (WiMAX) and 4.57-5.82 GHz (WLAN). The fabricated antenna has a bandwidth impedance value through S11
Multi-band MIMO Antenna with Square-Ring Slots for 5G Services Syaza Ibra Harlin; Nursal, Firdaus; Yolanda, Amelia
International Journal of Wireless And Multimedia Communications Vol. 2 No. 2 (2025): International Journal of Wireless And Multimedia Communications
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62671/jowim.v2i2.143

Abstract

Mobile communications technology is evolving rapidly with the introduction of 5G networks, which offer high speeds, low latency, and greater network capacity. To support these services, antennas that can operate optimally in a wide frequency range are required. The objective of this research is to design and analyze a multi-band square-ring slot MIMO antenna operating at frequencies of 2.6 GHz, 3.6 GHz, and 5.25 GHz. The antenna design is performed using CST Studio Suite 2019 software, and the simulation results are compared with the measurement results after fabrication. The antenna structure utilizes a microstrip design with an FR-4 substrate, optimizing parameters such as slot dimensions, feed line positioning, and element spacing to achieve the desired performance. The results show that the designed antenna has a return loss of < -10 dB, VSWR values in the acceptable range (1 ≤ VSWR ≤ 2), mutual coupling isolation below -20 dB, and ECC < 0.05, indicating good MIMO performance. In addition, the antenna exhibits an omnidirectional radiation pattern, a gain of more than 4 dBi with a maximum of 5.25 dBi at 2.6 GHz, and a wide bandwidth suitable for 5G applications. Although there are differences between simulated and measured results due to environmental factors and manufacturing tolerances, the antenna performance remains within acceptable limits. This research proves that the multi-band MIMO design with a square-ring slot can be an effective and practical solution to enhance 5G service quality, offering advantages for future wireless communication systems.
Co-Authors Afrizal Yuhanef Amelia Yolanda Jamil, Wahdina Saputri, Trianti Indra Syaza Ibra Harlin Yulindon