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All Journal Perfecting a Video Game with Game Metrics Bulletin of Electrical Engineering and Informatics
Fahad Taha Al-Dhief
Universiti Teknologi Malaysia
Computer Science & IT Electrical & Electronics Engineering

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Smartphone’s off grid communication network by using Arduino microcontroller and microstrip antenna Yaqdhan Mahmood Hussain; H. O. Hanoosh; Z. Zakaria; Fahad Taha Al-Dhief; Murtaja Ali Saare; Mustafa Muhammad Jawad; Alaa Hamza Omran; Ali Abdulateef Abdulbari
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 19, No 4: August 2021
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v19i4.15949

Abstract

After a major disaster, the present communication system fails in providing the services in the affected area. No means of communication proves to be more dangerous as the rescue and relief operations become more difficult. Our current research is about establishing a network in such a disaster-prone area, which would facilitate to communicate and carry out the rescue missions. This research project used Java to create a fire-chat application and used it with the smartphone android system. It used Bluetooth model HC-05 linked with Arduino UNO by the SPI interface to connect Arduino with the smartphone. The FR-model HCW69 connected with Arduino by using UART to transceiver the message. The microstrip antenna 915 MHz connected with the FR-model HCW69 to give us more distance. The maximum effective range of the transceiver was 1 kilometer, to communicate by forming a mesh network. This application is helpful in the case when the smartphone is out of service; it (smartphone) can be communicated connected to the other nearby users with a message.
High gain antenna at 915 MHz for off grid wireless networks Hussam Hamid Keriee; Mohamad Kamal A. Rahim; Nawres Abbas Nayyef; Zahriladha Zakaria; Ahmed Jamal Abdullah Al- Gburi; Fahad Taha Al-Dhief; Mustafa M. Jawad
Bulletin of Electrical Engineering and Informatics Vol 9, No 6: December 2020
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v9i6.2192

Abstract

This paper presents a high gain antenna for off-grid wireless networks at 915 MHz. The requirements for compact size and high gain antenna are needed in the industrial, scientific and medical (ISM) band for better performance and coverage. Hence, microstrip planar substrate is proposed to overcome the size challenges. The proposed antenna is designed based on rectangular patch with air gap technique. The proposed antenna is optimized using computer simulation technology software (CST) and fabricated on low profile FR-4 substrate. The measured performance agreed well with the simulated one. The reflection of less than -10 dB is obtained with high gain of 6.928 dB at desired frequency. Overall, this antenna can be a good candidate for the off-grid wireless network applications. 
Design and characterization substrate integrated waveguide antenna for WBANS application Mustafa Mohammed Jawad Abed; Nik Noordini Nik Abd Malik; Noor Asniza Murad; Mona Riza Mohd Esa; Mohd Riduan Ahmad; Ola Hussein Abed Al Radh; Ali Abdulateef Abdulbari; Yaqdhan Mahmood Hussein; Fahad Taha Al-Dhief
Bulletin of Electrical Engineering and Informatics Vol 11, No 3: June 2022
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v11i3.3492

Abstract

Millimetre-wave frequencies are defined as one of the front-runner contenders for body-centric wireless communication. In this study, low-profile antenna with the substrate integrated waveguide (SIW) has been proposed that operate in the band of the millimetre-wave frequency that has been centred at 60 GHz. The proposed antenna has been implemented with the use of the FR4 substrate with εr and tangent loss of 4.3 and 0.025, respectively. The substrate height and size are 1.5875 mm and 20 mm x 20 mm, respectively. The performance of the antenna is evaluated in off-body (free space) and on-body (human voxel model), through simulation. The proposed antenna has an ultra-wideband (UWB) and a specific absorption rate the maximal (SAR) for (10 g) is 0.0344815 W/kg and for (1 g) is 0.0184723 W/kg. It achieves 74% and 63% efficiency in the off and on-body scenario, respectively. The small antenna with the exceptional matching of impedance, low SAR, broad bandwidth, and good efficiency, a good voltage standing wave ratio good (VSWR), and good front-to-back ratio (FBR). As a result, its characteristics make it one of the best potential candidates for the simultaneous transmission and reception of data at (mm-wave) band for WBAN applications.
Co-Authors Ahmed Jamal Abdullah Al- Gburi Alaa Hamza Omran Ali Abdulateef Abdulbari H. O. Hanoosh Hussam Hamid Keriee Mohamad Kamal A. Rahim Mohd Riduan Ahmad Mona Riza Mohd Esa Murtaja Ali Saare Mustafa M. Jawad Mustafa Mohammed Jawad Abed Mustafa Muhammad Jawad Nawres Abbas Nayyef Nik Noordini Nik Abd Malik Noor Asniza Murad Ola Hussein Abed Al Radh Yaqdhan Mahmood Hussain Yaqdhan Mahmood Hussein Z. Zakaria Zahriladha Zakaria