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All Journal Indonesian Journal of Electrical Engineering and Computer Science Jurnal Informatika Dan Tekonologi Komputer (JITEK)
Afina Lina Nurlaili
Universitas Pembangunan Nasional Veteran Jawa Timur
Computer Science & IT Education Other

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Sectoral dual-polarized MIMO antenna for 5G-NR band N77 base station Muhsin Muhsin; Afina Lina Nurlaili; Aulia Saharani; Indah Rahmawti Utami
Indonesian Journal of Electrical Engineering and Computer Science Vol 21, No 3: March 2021
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v21.i3.pp1611-1621

Abstract

Massive internet of things (IoT) in 5G has many advantages as a future technology. It brings some challenges such as a lot of devices need massive connection. In this case, multiple-input multiple-output (MIMO) systems offer high performance and capacity of communications. There is a challenge of correlation between antennas in MIMO. This paper proposes three-sectors MIMO base station antenna for 5G-New Radio (5G-NR) band N77 with dual polarized configuration to reduce the correlation. The proposed antenna has a maximum coupling of -16.90 dB and correlation below 0.01. The obtained bit error rate (BER) performance is very close to non-correlated antennas with bandwidth of 1.87 GHz. It means that the proposed antenna has been well designed.
PENGUJIAN USER ACCEPTANCE TEST PADA APLIKASI BANGBELI: (STUDI KASUS: PT. DOA ANAK DIGITAL) I Dewa Gde Satria Pramana Erlangga; Sugiarto Sugiarto; Afina Lina Nurlaili
Jurnal Informatika Dan Tekonologi Komputer (JITEK) Vol. 3 No. 3 (2023): November : Jurnal Informatika dan Tekonologi Komputer
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jitek.v3i3.2003

Abstract

The development of the Bangbeli application is one of the efforts to increase the number of users. However, to ensure that these changes and additions meet the users' needs, user validation is required to verify that the developed application meets the defined business requirements and functionalities, thereby providing benefits to both the company and end users. User acceptance testing aims to determine the respondents' feedback on a system that has been created. The results of this testing yield the user acceptance test results, which consist of three aspects: design interface, user-friendliness, and efficiency. The agreement percentages for each aspect are 69.64%, 71.12%, and 68.76% respectively.
Co-Authors Aulia Saharani I Dewa Gde Satria Pramana Erlangga Indah Rahmawti Utami Muhsin Sugiarto Sugiarto