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All Journal NIKe Jurnal Ilmiah Perikanan dan Kelautan | Fisheries and Marine Scientific Journal Jurnal Teknologi Elekterika
Rauf, Yuliana
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Agriculture, Biological Sciences & Forestry Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Environmental Science Social Sciences

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Morfologi dan Morfometrik Jenis Ikan Gobi di Danau Limboto Rauf, Yuliana; Sahami, Femy Mahmud; Kadim, Miftahul Khair
The NIKe Journal VOLUME 12 ISSUE 1 | MARCH 2024
Publisher : Faculty of Fishery and Marine Sciences - Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/nj.v12i1.24803

Abstract

This research aims to determine the morphological and morphometric characteristics of goby fish species in Lake Limboto, Gorontalo Regency. Sampling was carried out at 3 (three) fishing boat landing locations on Lake Limboto, namely in Huntu Village, Bua Village and Iluta Village. Sampling was carried out from April to June 2021. The samples collected were all types of gobies caught by fishermen in Lake Limboto. All samples were observed and grouped based on their morphological similarities and then morphometric measurements were carried out using the ImageJ application. The results of the research showed that in Lake Limboto there were 3 groups of gobies found, morphologically namely manggabai (Glossogobius) there were 3 groups, Hulu'u (Ophieleotris) 3 groups and tola-tola/gabus (Channa) only 1 group, and morphometrically the manggabai group has distinguishing characteristics in the form of body height and anal fin length, Hulu'u's distinguishing characteristics are eye diameter and tail fin length, while tola/tola/gabus are not compared.
Design of Microstrip Antenna Array for 5G Communication Systems Mimsyad, Muhammad; Rauf, Awaluddin; Rauf, Yuliana
Jurnal Teknologi Elekterika Vol. 22 No. 1 (2025)
Publisher : Jurusan Teknik Elektro Politeknik Negeri Ujung Pandang

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Abstract

For the time being, the fifth generation (5G) communication system has been realized in many countries and the number of 5G subscribers is very large. Unlike previous generations that only focused on improving network capacity, the 5G communication systems extends telecommunication services from humans to objects (things), and also from consumers to industries. This enables a wide range of services from conventional mobile broadband to industry 4.0, virtual reality (VR), Internet of Things (IoT), and automatic driving. The values ​​of 5G services and applications greatly support the mobility and flexibility of today's customers such as remote surgery in hospitals, online education, driverless vehicles, unmanned delivery, robots, smart healthcare, industrial automation. This study presents the design and realization of a 4×4 rectangular microstrip antenna array. This antenna can be applied to support 5G communication. The antenna array configuration is arranged uniformly. For antenna excitation, an inset feed transmission line is employed to each antenna element. The antenna array has been validated and works at a frequency of 2.3 GHz, with an HPBW of 30° in the E-plane. Meanwhile, based on measurements, the gain and bandwidth values ​​are 13.51 dBi and 100 MHz respectively.
Co-Authors Awaluddin Rauf, Awaluddin Femy Mahmud Sahami Miftahul Khair Kadim, Miftahul Khair Mimsyad, Muhammad