Dr Naser Ojaroudi Parchin's Outputs (91)

A Four Element mm-Wave MIMO Antenna System with Wide-Band and High Isolation Characteristics for 5G Applications (2023)
Journal Article
Munir, M. E., Kiani, S. H., Savci, H. S., Marey, M., Khan, J., Mostafa, H., & Parchin, N. O. (2023). A Four Element mm-Wave MIMO Antenna System with Wide-Band and High Isolation Characteristics for 5G Applications. Micromachines, 14(4), Article 776. https://doi.org/10.3390/mi14040776

In this article, we propose a light weight, low profile Multiple Input Multiple Output (MIMO) antenna system for compact 5th Generation (5G) mmwave devices. Using a RO5880 substrate that is incredibly thin, the suggested antenna is made up of circula... Read More about A Four Element mm-Wave MIMO Antenna System with Wide-Band and High Isolation Characteristics for 5G Applications.

A 1.5 KW L-Band All GaN High-Efficiency Solid State Power Amplifier for Pulsed Applications (2023)
Presentation / Conference Contribution
Abounemra, A. M. E., Parchin, N. O., El-Tager, A. M., Mahdi, M., & Darwish, M. (2023, February). A 1.5 KW L-Band All GaN High-Efficiency Solid State Power Amplifier for Pulsed Applications. Presented at 2023 International Microwave and Antenna Symposium (IMAS), Cairo, Egypt

This paper describes the design and fabrication of a 1500 watts multi-stage L-band RF solid-state power amplifier (SSPA). The basic approach is to use 50-volt Gallium Nitride High Electron Mobility Transistors (GaN-HEMT) for all the stages to ease th... Read More about A 1.5 KW L-Band All GaN High-Efficiency Solid State Power Amplifier for Pulsed Applications.

An efficient antenna system with improved radiation for multi-standard/multi-mode 5G cellular communications (2023)
Journal Article
Parchin, N. O., Mohamed, H. G., Moussa, K. H., See, C. H., Abd-Alhameed, R. A., Alwadai, N. M., & Amar, A. S. I. (2023). An efficient antenna system with improved radiation for multi-standard/multi-mode 5G cellular communications. Scientific Reports, 13, Article 4179. https://doi.org/10.1038/s41598-023-31407-z

This paper introduces a multi-input multiple-output (MIMO) antenna array system that provides improved radiation diversity for multi-standard/multi-mode 5G communications. The introduced MIMO design contains four pairs of miniaturized self-complement... Read More about An efficient antenna system with improved radiation for multi-standard/multi-mode 5G cellular communications.

Eight-Port Modified E-Slot MIMO Antenna Array with Enhanced Isolation for 5G Mobile Phone (2023)
Journal Article
Abubakar, H. S., Zhao, Z., Wang, B., Kiani, S. H., Parchin, N. O., & Hakim, B. (2023). Eight-Port Modified E-Slot MIMO Antenna Array with Enhanced Isolation for 5G Mobile Phone. Electronics, 12(2), Article 316. https://doi.org/10.3390/electronics12020316

An eight-element antenna system operating at sub 6 GHz is presented in this work for a future multiple-input multiple-output (MIMO) system based on a modified E-slot on the ground. The modified E-slot significantly lowers the coupling among the anten... Read More about Eight-Port Modified E-Slot MIMO Antenna Array with Enhanced Isolation for 5G Mobile Phone.

Programmable Beam-Steering Capabilities Based on Graphene Plasmonic THz MIMO Antenna via Reconfigurable Intelligent Surfaces (RIS) for IoT Applications (2022)
Journal Article
Khaleel, S. A., Hamad, E. K. I., Parchin, N. O., & Saleh, M. B. (2022). Programmable Beam-Steering Capabilities Based on Graphene Plasmonic THz MIMO Antenna via Reconfigurable Intelligent Surfaces (RIS) for IoT Applications. Electronics, 12(1), Article 164. https://doi.org/10.3390/electronics12010164

The approaching sixth-generation (6G) communication network will modernize applications and satisfy user demands through implementing a smart and reconfigurable system with a higher data rate and wider bandwidth. The controllable THz waves are highly... Read More about Programmable Beam-Steering Capabilities Based on Graphene Plasmonic THz MIMO Antenna via Reconfigurable Intelligent Surfaces (RIS) for IoT Applications.

Four-Element/Eight-Port MIMO Antenna System with Diversity and Desirable Radiation for Sub 6 GHz Modern 5G Smartphones (2022)
Journal Article
Parchin, N. O., Amar, A. S., Darwish, M., Moussa, K. H., See, C. H., Abd-Alhameed, R. A., Alwadai, N. M., & Mohamed, H. G. (2022). Four-Element/Eight-Port MIMO Antenna System with Diversity and Desirable Radiation for Sub 6 GHz Modern 5G Smartphones. IEEE Access, 10, 133037-133051. https://doi.org/10.1109/access.2022.3227199

In this manuscript, a multiple-input multiple-output (MIMO) antenna array system with identical compact antenna elements providing wide radiation and diversity function is introduced for sub 6 GHz fifth-generation (5G) cellular applications. The intr... Read More about Four-Element/Eight-Port MIMO Antenna System with Diversity and Desirable Radiation for Sub 6 GHz Modern 5G Smartphones.

Circuit Modelling of Broadband Antenna Using Vector Fitting and Foster Form Approaches for IoT Applications (2022)
Journal Article
Ez-zaki, F., Belaid, K. A., Ahmad, S., Belahrach, H., Ghammaz, A., Al-Gburi, A. J. A., & Parachin, N. O. (2022). Circuit Modelling of Broadband Antenna Using Vector Fitting and Foster Form Approaches for IoT Applications. Electronics, 11(22), Article 3724. https://doi.org/10.3390/electronics11223724

Computation of the broadband antenna impedance behavior requires the wideband lumped equivalent circuit. This work aims to provide a comprehensive study of broadband antenna equivalent circuit models over broad frequency ranges for Internet of Things... Read More about Circuit Modelling of Broadband Antenna Using Vector Fitting and Foster Form Approaches for IoT Applications.

Design of a Tri-Band Wearable Antenna for Millimeter-Wave 5G Applications (2022)
Journal Article
Ahmad, S., Boubakar, H., Naseer, S., Alim, M. E., Sheikh, Y. A., Ghaffar, A., Al-Gburi, A. J. A., & Parchin, N. O. (2022). Design of a Tri-Band Wearable Antenna for Millimeter-Wave 5G Applications. Sensors, 22(20), Article 8012. https://doi.org/10.3390/s22208012

A printed monopole antenna for millimeter-wave applications in the 5G frequency region is described in this research. As a result, the proposed antenna resonates in three frequency bands that are designated for 5G communication systems, including 28... Read More about Design of a Tri-Band Wearable Antenna for Millimeter-Wave 5G Applications.

A Deployable and Cost-Effective Kirigami Antenna for Sub-6 GHz MIMO Applications (2022)
Journal Article
Kiani, S. H., Marey, M., Rafique, U., Shah, S. I. H., Bashir, M. A., Mostafa, H., Wong, S.-W., & Parchin, N. O. (2022). A Deployable and Cost-Effective Kirigami Antenna for Sub-6 GHz MIMO Applications. Micromachines, 13(10), Article 1735. https://doi.org/10.3390/mi13101735

In this work, a low-cost, deployable, integratable, and easy-to-fabricate multiple-input multiple-output (MIMO) Kirigami antenna is proposed for sub-6 GHz applications. The proposed MIMO antenna is inspired by Kirigami art, which consists of four rad... Read More about A Deployable and Cost-Effective Kirigami Antenna for Sub-6 GHz MIMO Applications.

Eight-Element Antenna Array with Improved Radiation Performances for 5G Hand-Portable Devices (2022)
Journal Article
Ullah, A., Ojaroudi Parchin, N., Amar, A. S. I., & Abd-Alhameed, R. A. (2022). Eight-Element Antenna Array with Improved Radiation Performances for 5G Hand-Portable Devices. Electronics, 11(18), Article 2962. https://doi.org/10.3390/electronics11182962

This study aims to introduce a new phased array design with improved radiation properties for future cellular networks. The procedure of the array design is simple and has been accomplished on a low-cost substrate material while offering several inte... Read More about Eight-Element Antenna Array with Improved Radiation Performances for 5G Hand-Portable Devices.

A New Multiple Slot Antenna System for Sub 6 GHz Smartphones (2022)
Presentation / Conference Contribution
Parchin, N. O., Amar, A. S., Darwish, M., See, C. H., Abd-Alhameed, R. A., Almslmany, A., & El-Hennawy, H. (2022, July). A New Multiple Slot Antenna System for Sub 6 GHz Smartphones. Presented at 2022 International Telecommunications Conference (ITC-Egypt), Alexandria, Egypt

This work presents a sub-6 GHz multiple-input multiple-output (MIMO) antenna array with sufficient characteristics for mobile phone applications. At the four corners of the mobile phone mainboard, there are eight compact hook-shaped slot antennas mou... Read More about A New Multiple Slot Antenna System for Sub 6 GHz Smartphones.

Super-Wideband and Highly-Miniaturized Phased Array for MM-Wave Smartphone Applications (2022)
Presentation / Conference Contribution
Amar, A. S., Darwish, M., Parchin, N. O., See, C. H., Ghareeb, M. F., Abd-Alhameed, R. A., & El-Hennawy, H. (2022, July). Super-Wideband and Highly-Miniaturized Phased Array for MM-Wave Smartphone Applications. Presented at 2022 International Telecommunications Conference (ITC-Egypt), Alexandria, Egypt

This paper aims to investigate of new phased array design and its radiation characteristics with highly-miniaturized and super-wideband (SWB) properties. The procedure of the phased array design is simple and can be directly performed on a single-lay... Read More about Super-Wideband and Highly-Miniaturized Phased Array for MM-Wave Smartphone Applications.

Vertically-Polarized/End-Fire Phased Array with Folded-Slot Resonators for Cellular Communications (2022)
Presentation / Conference Contribution
Parchin, N. O., Amar, A. S., Abdel-Rahman, A. S., Adel, A., See, C. H., Abdul-Al, M., & Abd-Alhameed, R. A. (2022, July). Vertically-Polarized/End-Fire Phased Array with Folded-Slot Resonators for Cellular Communications. Presented at 2022 International Telecommunications Conference (ITC-Egypt), Alexandria, Egypt

This study aims to introduce a new phased array design with end-fire and vertically-polarized radiation for future cellular networks. The procedure of the array design is simple, accomplished on a single layer substrate material. Its schematic involv... Read More about Vertically-Polarized/End-Fire Phased Array with Folded-Slot Resonators for Cellular Communications.

Low-Profile MM-Wave PIFA Array with Omni-Directional and Full-Coverage Radiations (2022)
Presentation / Conference Contribution
Ullah, A., Parchin, N. O., Santos, H. M. D., See, C. H., & Abd-Alhameed, R. A. (2022, June). Low-Profile MM-Wave PIFA Array with Omni-Directional and Full-Coverage Radiations. Presented at 2022 IEEE Wireless Antenna and Microwave Symposium (WAMS), Rourkela, India

This manuscript studies the design and radiation characteristics of a new phased array with highly-miniaturized broadband and omnidirectional radiation properties. The procedure of the phased array design is simple and can be easily accomplished on a... Read More about Low-Profile MM-Wave PIFA Array with Omni-Directional and Full-Coverage Radiations.

Gain Enhancement of Diversity Slot Antenna Using FSS with Metamaterial Unit Cells for UWB Systems (2022)
Presentation / Conference Contribution
Parchin, N. O., Ullah, A., Santos, H. M. D., See, C. H., & Abd-Alhameed, R. A. (2022, June). Gain Enhancement of Diversity Slot Antenna Using FSS with Metamaterial Unit Cells for UWB Systems. Presented at 2022 IEEE Wireless Antenna and Microwave Symposium (WAMS), Rourkela, India

This study represents the design of a dual-port/diversity antenna with enhanced gain property ultra-wideband (UWB) systems. It contains a small-size open-ended slot resonator fed by a pair of semi-arc feed-lines providing radiation/polarization diver... Read More about Gain Enhancement of Diversity Slot Antenna Using FSS with Metamaterial Unit Cells for UWB Systems.

A Compact mmWave MIMO Antenna for Future Wireless Networks (2022)
Journal Article
Khan, M. I., Khan, S., Kiani, S. H., Ojaroudi Parchin, N., Mahmood, K., Rafique, U., & Qadir, M. M. (2022). A Compact mmWave MIMO Antenna for Future Wireless Networks. Electronics, 11(15), Article 2450. https://doi.org/10.3390/electronics11152450

This article presents a four-element multiple-input multiple-output (MIMO) antenna design for next-generation millimeter-wave (mmWave) communication systems. The single antenna element of the MIMO systems consists of a T-shaped and plow-shaped patch... Read More about A Compact mmWave MIMO Antenna for Future Wireless Networks.

New Method to Implement and Analysis of Medical System in Real Time (2022)
Journal Article
Abd Elgawad, Y. Z., Youssef, M. I., Nasser, T. M., Almslmany, A., S. I. Amar, A., Mohamed, A. A., Parchin, N. O., Abd-Alhameed, R. A., Mohamed, H. G., & Moussa, K. H. (2022). New Method to Implement and Analysis of Medical System in Real Time. Healthcare, 10(7), Article 1357. https://doi.org/10.3390/healthcare10071357

The use of information technology and technological medical devices has contributed significantly to the transformation of healthcare. Despite that, many problems have arisen in diagnosing or predicting diseases, either as a result of human errors or... Read More about New Method to Implement and Analysis of Medical System in Real Time.

MTM-Inspired Graphene-Based THz MIMO Antenna Configurations Using Characteristic Mode Analysis for 6G/IoT Applications (2022)
Journal Article
Khaleel, S. A., Hamad, E. K. I., Parchin, N. O., & Saleh, M. B. (2022). MTM-Inspired Graphene-Based THz MIMO Antenna Configurations Using Characteristic Mode Analysis for 6G/IoT Applications. Electronics, 11(14), Article 2152. https://doi.org/10.3390/electronics11142152

6G wireless communications will be immersed in the future with different applications. It is expected to support all IoT services and satellite communications, and it is expected to support artificial intelligence (AI) and machine learning (ML). The... Read More about MTM-Inspired Graphene-Based THz MIMO Antenna Configurations Using Characteristic Mode Analysis for 6G/IoT Applications.

A New Beamforming Approach Using 60 GHz Antenna Arrays for Multi-Beams 5G Applications (2022)
Journal Article
Al-Sadoon, M. A. G., Patwary, M. N., Zahedi, Y., Parchin, N. O., Aldelemy, A., & Abd-Alhameed, R. A. (2022). A New Beamforming Approach Using 60 GHz Antenna Arrays for Multi-Beams 5G Applications. Electronics, 11(11), Article 1739. https://doi.org/10.3390/electronics11111739

Recent studies and research have centred on new solutions in different elements and stages to the increasing energy and data rate demands for the fifth generation and beyond (B5G). Based on a new-efficient digital beamforming approach for 5G wireless... Read More about A New Beamforming Approach Using 60 GHz Antenna Arrays for Multi-Beams 5G Applications.

A New mmWave Antenna Array with Wideband Characteristics for Next Generation Communication Systems (2022)
Journal Article
Munir, M. E., Al Harbi, A. G., Kiani, S. H., Marey, M., Parchin, N. O., Mostafa, H., Iqbal, J., Abbas Khan, M., See, C. H., & Abd-Alhameed, R. A. (2022). A New mmWave Antenna Array with Wideband Characteristics for Next Generation Communication Systems. Electronics, 11(10), Article 1560. https://doi.org/10.3390/electronics11101560

This paper presents a planar multi-circular loop antenna with wide impedance bandwidth for next generation mm-wave systems. The proposed antenna comprises three circular rings with a partial ground plane having a square slot. The resonating structure... Read More about A New mmWave Antenna Array with Wideband Characteristics for Next Generation Communication Systems.