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All Journal International Journal of Electrical and Computer Engineering TELKOMNIKA (Telecommunication Computing Electronics and Control) Bulletin of Electrical Engineering and Informatics Bulletin of Electrical Engineering and Informatics Bulletin of Electrical Engineering and Informatics Indonesian Journal of Electrical Engineering and Computer Science
Zahriladha Zakaria
Universiti Teknikal Malaysia Melaka (UTeM)
Computer Science & IT Electrical & Electronics Engineering Engineering

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Journal : Bulletin of Electrical Engineering and Informatics

 1 
Number of Iteration Analysis for Complex FSS Shape Using GA for Efficient ESG Nornikman Hassan; Zahriladha Zakaria; Badrul Hisham Ahmad; Naim Che Pee; Siti Nadzirah Salleh; Mohamad Zoinol Abidin Abd Aziz; Mohd Fareq Abdul Malek; Mohd Khairy Ismail
Bulletin of Electrical Engineering and Informatics Vol 7, No 4: December 2018
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (506.558 KB) | DOI: 10.11591/eei.v7i4.1354

Abstract

ESG stand for Energy-Saving Glass is a special shielded glass with a metallic oxide layer to abuse undesirable of infrared and ultraviolet radiation into construction assemblies like our home. Firstly, different number of the iteration is the main thing to study a performance of the frequency selective surface shape using genetic algorithm (GA) for efficient energy saving glass (ESG). Three different values for the number of iterations were taken that is 1500, 2000 1nd 5000. Before that, the response of this complex FSS shape on incident electromagnetic wave with different symmetry shape are investigating. Three of them are no symmetrical shape, ¼ symmetrical shape, and 1/8 symmetrical shape. The 1500 number simulation considered about 89.000 per second, compared with 2000 iteration and 5000 iterations had consumed 105.09 per second and 196.00 per second, respectively. For 1/8 symmetry complex FSS shape, it demonstrations the improved performance of transmission loss at 1.2 GHz with - 40 dB. A 2 dB of transmission loss is achieved at WLAN application of 2.45 GHz with 0°, 30°, and 45° incidence angle shows.
Microwave Planar Sensor for Determination of the Permittivity of Dielectric Material Mohd Khairy Ismail; Zahriladha Zakaria; Nornikman Hassan; Sam Weng Yik; Mohd Mawardy Abdullah
Bulletin of Electrical Engineering and Informatics Vol 7, No 4: December 2018
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (748.906 KB) | DOI: 10.11591/eei.v7i4.1355

Abstract

This paper proposed a single port rectangular microwave resonator sensor. This sensor operates at the resonance frequency of 4GHz. The sensor consists of micro-strip transmission line and applied the enhancement method. The enhancement method is able to improve the return loss of the sensor, respectively. Plus, the proposed sensor is designed and fabricated on Roger 5880 substrate. Based on the results, the percentage of error for the proposed rectangular sensor is 0.2% to 8%. The Q-factor of the sensor is 174.
Wideband power amplifier based on Wilkinson power divider for s-band satellite communications Mussa Mabrok; Zahriladha Zakaria; Tole Sutikno; Ammar Alhegazi
Bulletin of Electrical Engineering and Informatics Vol 8, No 4: December 2019
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (631.684 KB) | DOI: 10.11591/eei.v8i4.1552

Abstract

This paper presents design and simulation of wideband power amplifier based on multi-section Wilkinson power divider. Class-A topology and ATF-511P8 transistor have been used. Advanced Design System (ADS) software used to simulate the designed power amplifier. The simulation results show an input return loss (S11)<-10dB, gain (S21)>10 dB over the entire bandwidth, and an output power around 28dBm at the Centre frequency of 3GHz. The designed amplifier is stable over the entire bandwidth (K>1). Inter-modulation distortion is -65.187dBc which is less than -50dBc. The designed amplifier can be used for the microwave applications which include weather radar, satellite communication, wireless networking, mobile, and TV.
Co-Authors A. A. Md Isa A. Ahmad A. R. Othman Abdullah M. Zobilah Adib Othman Adib Othman Ahmed Ismail Abu-Khadrah Ahmed M. Dinar Amirul Aizat Zolkefli Ammar Alhegazi Anwar Faizd Osman Ariffuddin Joret Azahari Salleh Badrul Hisham Ahmad Faza Syahirah Mohd Noor Herwansyah Lago Herwansyah Lago Huda A. Majid Huda A. Majid Imran Mohd Ibrahim Ismail Bin Mohd M . K. Abdulhameed M. K. Abdulhameed Maizatul Alice Meor Said Mohamad Harris Misran Mohamad Zoinol Abidin Abd Aziz Mohd Fareq Abdul Malek Mohd Haizal Jamaluddin Mohd Khairy Ismail Mohd Mawardy Abdullah Mohd Nor Husain Mothana L. Attiah Mowafak K. Mohsen Muhajir Mustapa Muhammad Faiz Liew Abdullah Muhammad Suhaimi Sulong Mussa Mabrok Naim Che Pee Nasrullah Saifullah Noor Azwan Shairi Nornikman Hassan Norshidah Katiran Nur Ishmah Sabirah Shaari Nurhasniza Edward Nursyahirah Mohd Sanusi Rammah A. Alahnomi Rammah A. Alahnomi S. Alani Sajjad Ahmed Sam Weng Yik Sameer Alani Sharif Ahmed Siti Nadzirah Salleh Tole Sutikno Yosza Dasril Yully Erwanti Masrukin Yully Masrukin