saleh omar - Academia.edu (original) (raw)

Papers by saleh omar

International Journal of Electrical and Computer Engineering (IJECE), 2024

This paper presents a new rectenna system that combine a patch antenna with a solar cell to captu... more This paper presents a new rectenna system that combine a patch antenna with a solar cell to capture energy from both radio frequency (RF) signals and sunlight. The patch antenna collects RF signals, while the solar cell converts sunlight into electricity. This integration offers a sustainable energy solution for internet of things (IoT) sensors or drones. The antenna's performance at 26 GHz demonstrates impressive metrics, including a -68 dB S11 reflection, 700 MHz bandwidth, 6.25 dBi gain, 49.8 Ω impedance, and 42.25% RF-DC conversion efficiency. The "solar rectenna" integrates both technologies, driving technological advancement and fostering sustainability in wireless communication.

International journal of computer science and mobile computing, Oct 29, 2023

In this paper, a 4G and 5G microstrip patch antenna (MSPA) design and performance analysis for fi... more In this paper, a 4G and 5G microstrip patch antenna (MSPA) design and performance analysis for fifth-generation communication systems is presented. The antenna is designed using FR-4 substrate material with thickness of 1.1 mm, and dielectric constant (εr) of 4.3.This antenna is previewed to operate at 4.2 GHz for 4G and this will also be used with 28 GHz for 5G. Analysis was conducted using CST (Computer Simulation Technology) simulator. The simulation results are shown for these frequencies. This is explained including their respective bandwidths, HPBWs and gains. Tested antenna shows a good gain of 4.38dBi at 4G frequency of 5GHz and an excellent gain of 7.85dBi for 5G frequency at 27GHz. Results are enabling this antenna for 4G and 5G network mobile application.

International journal of computer science and mobile computing, Dec 29, 2023

International Journal of Computer Science and Mobile Computing (IJCSMC), 2023

The paper provides an overview of Frequency Selective Surface (FSS) technology for 5G antenna des... more The paper provides an overview of Frequency Selective Surface (FSS) technology for 5G antenna design. It covers the concept of FSS technology, 5G technology, the importance of antenna design in 5G, advantages and limitations of FSS-based antennas, and design considerations. The paper also discusses fabrication techniques, simulation tools, applications, and case studies of FSS-based antennas for 5G. It concludes with a comparison of FSS-based antennas with other technologies and potential future directions for FSS technology. FSS is a periodic structure that filters specific frequencies while allowing others to pass through, and it can be implemented using various materials and designs.
The aim of this paper is to provide an overview of the state of the art in Frequency Selective Surface (FSS) technology for 5G antenna design. The report begins with an introduction to the concept of FSS technology, followed by an overview of 5G technology, the importance of antenna design in 5G, the advantages and limitations of FSS-based antennas and design considerations for FSS-based antennas. The report then discusses fabrication techniques and simulation tools for FSS-based antenna design, as well as applications and case studies of FSS-based antennas for 5G. Finally, the paper concludes with a comparison of FSS-based antennas with other antenna technologies, and potential future directions for FSS technology.

International Journal of Computer Science and Mobile Computing (IJCSMC), 2023

In this paper, a 4G and 5G microstrip patch antenna (MSPA) design and performance analysis for fi... more In this paper, a 4G and 5G microstrip patch antenna (MSPA) design and performance analysis for fifth-generation communication systems is presented. The antenna is designed using FR-4 substrate material with thickness of 1.1 mm, and dielectric constant (εr) of 4.3.This antenna is previewed to operate at 4.2 GHz for 4G and this will also be used with 28 GHz for 5G. Analysis was conducted using CST (Computer Simulation Technology) simulator. The simulation results are shown for these frequencies. This is explained including their respective bandwidths, HPBWs and gains. Tested antenna shows a good gain of 4.38dBi at 4G frequency of 5GHz and an excellent gain of 7.85dBi for 5G frequency at 27GHz. Results are enabling this antenna for 4G and 5G network mobile application.

In this paper the microwave absorbing properties of multiband Salisbury screen absorber design wh... more In this paper the microwave absorbing properties of multiband Salisbury screen absorber design which is constructed using multi-layer FSS is investigated. The multiband properties are obtained by exploiting the phase change offered by the cross dipole FSS. Hence, the details phase characteristic are important to achieve multi-band characteristics. The structure exhibits triple operating band where the-10 dB reflectivity bandwidth of a Salisbury screen operating at normal incidence is 38.1%, 12.1% and 17.2% at the resonant frequencies of 6.56 GHz, 9.1 GHz and 13.0 GHz respectively. Reflectivity predictions for normal incidence are shown to be in close agreement with bistatic measured results over the frequency range 8-12 GHz.

International Journal of Electrical and Computer Engineering (IJECE), 2024

This paper presents a new rectenna system that combine a patch antenna with a solar cell to captu... more This paper presents a new rectenna system that combine a patch antenna with a solar cell to capture energy from both radio frequency (RF) signals and sunlight. The patch antenna collects RF signals, while the solar cell converts sunlight into electricity. This integration offers a sustainable energy solution for internet of things (IoT) sensors or drones. The antenna's performance at 26 GHz demonstrates impressive metrics, including a -68 dB S11 reflection, 700 MHz bandwidth, 6.25 dBi gain, 49.8 Ω impedance, and 42.25% RF-DC conversion efficiency. The "solar rectenna" integrates both technologies, driving technological advancement and fostering sustainability in wireless communication.

International journal of computer science and mobile computing, Oct 29, 2023

In this paper, a 4G and 5G microstrip patch antenna (MSPA) design and performance analysis for fi... more In this paper, a 4G and 5G microstrip patch antenna (MSPA) design and performance analysis for fifth-generation communication systems is presented. The antenna is designed using FR-4 substrate material with thickness of 1.1 mm, and dielectric constant (εr) of 4.3.This antenna is previewed to operate at 4.2 GHz for 4G and this will also be used with 28 GHz for 5G. Analysis was conducted using CST (Computer Simulation Technology) simulator. The simulation results are shown for these frequencies. This is explained including their respective bandwidths, HPBWs and gains. Tested antenna shows a good gain of 4.38dBi at 4G frequency of 5GHz and an excellent gain of 7.85dBi for 5G frequency at 27GHz. Results are enabling this antenna for 4G and 5G network mobile application.

International journal of computer science and mobile computing, Dec 29, 2023

International Journal of Computer Science and Mobile Computing (IJCSMC), 2023

The paper provides an overview of Frequency Selective Surface (FSS) technology for 5G antenna des... more The paper provides an overview of Frequency Selective Surface (FSS) technology for 5G antenna design. It covers the concept of FSS technology, 5G technology, the importance of antenna design in 5G, advantages and limitations of FSS-based antennas, and design considerations. The paper also discusses fabrication techniques, simulation tools, applications, and case studies of FSS-based antennas for 5G. It concludes with a comparison of FSS-based antennas with other technologies and potential future directions for FSS technology. FSS is a periodic structure that filters specific frequencies while allowing others to pass through, and it can be implemented using various materials and designs.
The aim of this paper is to provide an overview of the state of the art in Frequency Selective Surface (FSS) technology for 5G antenna design. The report begins with an introduction to the concept of FSS technology, followed by an overview of 5G technology, the importance of antenna design in 5G, the advantages and limitations of FSS-based antennas and design considerations for FSS-based antennas. The report then discusses fabrication techniques and simulation tools for FSS-based antenna design, as well as applications and case studies of FSS-based antennas for 5G. Finally, the paper concludes with a comparison of FSS-based antennas with other antenna technologies, and potential future directions for FSS technology.

International Journal of Computer Science and Mobile Computing (IJCSMC), 2023

In this paper, a 4G and 5G microstrip patch antenna (MSPA) design and performance analysis for fi... more In this paper, a 4G and 5G microstrip patch antenna (MSPA) design and performance analysis for fifth-generation communication systems is presented. The antenna is designed using FR-4 substrate material with thickness of 1.1 mm, and dielectric constant (εr) of 4.3.This antenna is previewed to operate at 4.2 GHz for 4G and this will also be used with 28 GHz for 5G. Analysis was conducted using CST (Computer Simulation Technology) simulator. The simulation results are shown for these frequencies. This is explained including their respective bandwidths, HPBWs and gains. Tested antenna shows a good gain of 4.38dBi at 4G frequency of 5GHz and an excellent gain of 7.85dBi for 5G frequency at 27GHz. Results are enabling this antenna for 4G and 5G network mobile application.

In this paper the microwave absorbing properties of multiband Salisbury screen absorber design wh... more In this paper the microwave absorbing properties of multiband Salisbury screen absorber design which is constructed using multi-layer FSS is investigated. The multiband properties are obtained by exploiting the phase change offered by the cross dipole FSS. Hence, the details phase characteristic are important to achieve multi-band characteristics. The structure exhibits triple operating band where the-10 dB reflectivity bandwidth of a Salisbury screen operating at normal incidence is 38.1%, 12.1% and 17.2% at the resonant frequencies of 6.56 GHz, 9.1 GHz and 13.0 GHz respectively. Reflectivity predictions for normal incidence are shown to be in close agreement with bistatic measured results over the frequency range 8-12 GHz.