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All Journal International Journal of Electrical and Computer Engineering
Shamsudin, Mustaqim Hakimi
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Computer Science & IT Electrical & Electronics Engineering

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Influence analysis of director’s elements on the circular Yagi disc antenna performance at 1.8 GHz Shamsudin, Mustaqim Hakimi; Ibrahim, Imran Mohd; Al-Gburi, Ahmed Jamal Abdullah; Purnamirza, Teddy
International Journal of Electrical and Computer Engineering (IJECE) Vol 13, No 6: December 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v13i6.pp6426-6434

Abstract

This paper aims to investigate and design a Yagi disc antenna with a variable number of director elements for Band 3 in fourth-generation long term evolution (4G LTE) mobile applications. The array technique was introduced by increasing the number of director elements to achieve superior results and better performance, such as higher gain and lower return loss. Initially, the simulated results of return loss and gain with one director element were -19.02 dB and 8.51 dBi, respectively. Then, by increasing the number of directors to three and five elements, the antenna’s performance improved significantly from -32.44 to -42.68 dB for return loss and from 8.51 to 11.17 dBi for gain, respectively. The simulated circular Yagi disc antenna provided a response in the range of 1.78 to 1.82 GHz. Therefore, a model was fabricated and tested to validate the antenna design. The measured results matched well with the simulated ones. By increasing the number of director elements, the measurement results of gain and return loss at a frequency of 1.8 GHz also showed improvement from 7.70 to 11.09 dBi and from -27.31 to -32.91 dB, respectively. Meanwhile, the measured antenna provided a wider bandwidth in the range of 1.72-1.82 GHz.
Co-Authors Al-Gburi, Ahmed Jamal Abdullah Ibrahim, Imran Mohd Teddy Purnamirza