Outputs (85)

Minkowski Based Microwave Resonator for Material Detection over Sub-6 GHz 5G Spectrum (2023)
Presentation / Conference Contribution
Anwer, A. I., Alibakhshikenari, . M., Elwi, T., Virdee, B., Kouhalvandi, L., Abdul Hassain, Z. A., Soruri, . M., Tokan, N. T., Ojaroudi Parchin, N., See, C. H., & Livreri, P. (2023, October). Minkowski Based Microwave Resonator for Material Detection over Sub-6 GHz 5G Spectrum. Presented at 2023 2nd International Conference on 6G Networking (6GNet), Paris, France

This paper describes the performance of a low-cost, high-sensitive microwave resonator for 5G modern wireless communication systems operating through sub-6GHz spectrum. Here, the proposed resonator is constructed from a Minkowski fractal open stub th... Read More about Minkowski Based Microwave Resonator for Material Detection over Sub-6 GHz 5G Spectrum.

Generalized Concept and MATLAB Code for Modeling and Analyzing Wideband 90° Stub-Loaded Phase Shifters with Simulation and Experimental Verifications (2023)
Journal Article
M. Alnahwi, F., I. A. Al-Yasir, Y., See, C. H., S. Abdullah, A., & Abd-Alhameed, A. R. A. (2023). Generalized Concept and MATLAB Code for Modeling and Analyzing Wideband 90° Stub-Loaded Phase Shifters with Simulation and Experimental Verifications. Sensors, 23(18), Article 7773. https://doi.org/10.3390/s23187773

In the design of phase shifters, the modeling equations are too complicated and require some approximations to be derived correctly by hand. In response to this problem, this paper presents a generalized concept, algorithm, and MATLAB code that provi... Read More about Generalized Concept and MATLAB Code for Modeling and Analyzing Wideband 90° Stub-Loaded Phase Shifters with Simulation and Experimental Verifications.

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.

Preparation of flexible dielectric nanocomposites using nanocellulose and recycled alum sludge for wearable technology applications (2022)
Journal Article
Sun, D., Saw, L., Onyianta, A., O'Rourke, D., Lu, Z., Wilson, C., See, C. H., Popescu, C., Dorris, M., & Shyha, I. (2022). Preparation of flexible dielectric nanocomposites using nanocellulose and recycled alum sludge for wearable technology applications. Materials, Methods & Technologies, 16, 149-159

With the rapid development of wearable technology, flexible dielectric materials with environmental-friendly, low-cost and high-energy efficiency characteristics are in increasing demand. In this work, a flexible dielectric nanocomposite was develope... Read More about Preparation of flexible dielectric nanocomposites using nanocellulose and recycled alum sludge for wearable technology applications.

Detection of Signals in MC–CDMA Using a Novel Iterative Block Decision Feedback Equalizer (2022)
Journal Article
Bagadi, K., Ravikumar, C., Sathish, K., Alibakhshikenari, M., Virdee, B. S., Kouhalvandi, L., Olan-Nuñez, . K. N., Pau, G., See, C. H., Dayoub, I., Livreri, . P., Aïssa, S., Falcone, F., & Limiti, E. (2022). Detection of Signals in MC–CDMA Using a Novel Iterative Block Decision Feedback Equalizer. IEEE Access, 10, 105674-105684. https://doi.org/10.1109/ACCESS.2022.3211392

This paper presents a technique to mitigate multiple access interference (MAI) in multicarrier code division multiple access (MC-CDMA) wireless communications systems. Although under normal circumstances the MC-CDMA system can achieve high spectral e... Read More about Detection of Signals in MC–CDMA Using a Novel Iterative Block Decision Feedback Equalizer.

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.

A Compact Wideband Circularly Polarized Planar Monopole Antenna with Axial Ratio Bandwidth Entirely Encompassing the Antenna Bandwidth (2022)
Journal Article
Mousa, F. M., Al-Yasir, Y. I. A., Ali, N. T., Gharbia, I., See, C. H., & Abd-Alhameed, R. (2022). A Compact Wideband Circularly Polarized Planar Monopole Antenna with Axial Ratio Bandwidth Entirely Encompassing the Antenna Bandwidth. IEEE Access, 10, 81828-81835. https://doi.org/10.1109/ACCESS.2022.3196610

The antenna presented in this study is a compact wideband monopole with wideband circular polarization that can be used across the whole antenna bandwidth. A rectangular C-shaped patch is partially covered by a ground plane in the proposed planar mon... Read More about A Compact Wideband Circularly Polarized Planar Monopole Antenna with Axial Ratio Bandwidth Entirely Encompassing the Antenna Bandwidth.

Single-Element and MIMO Circularly Polarized Microstrip Antennas with Negligible Back Radiation for 5G Mid-Band Handsets (2022)
Journal Article
Alnahwi, F. M., Al-Yasir, Y. I. A., See, C. H., & Abd-Alhameed, R. A. (2022). Single-Element and MIMO Circularly Polarized Microstrip Antennas with Negligible Back Radiation for 5G Mid-Band Handsets. Sensors, 22(8), Article 3067. https://doi.org/10.3390/s22083067

In this paper, single-element and MIMO microstrip antenna with two pairs of unequal slits is proposed as a circularly polarized antenna with negligible back radiation for 5G mid-band handsets. The unequal pairs of slits are engraved on the antenna pa... Read More about Single-Element and MIMO Circularly Polarized Microstrip Antennas with Negligible Back Radiation for 5G Mid-Band Handsets.

F-Shape Dual-Band MIMO Antenna System for Next- Generation Smartphone Applications (2022)
Presentation / Conference Contribution
Ullah, A., Parchin, N. O., Mannan, W., Al-Yasir, I. A., See, C. H., Hu, Y. F., & Abd-Alhameed, R. A. (2021, September). F-Shape Dual-Band MIMO Antenna System for Next- Generation Smartphone Applications. Presented at 2nd International Multi-disciplinary Conference-Integrated Sciences and Technologies Conference, Sakarya, Turkey [Online]

In this paper, a new F-shape 6-element dual-band multiple-input multiple-output (MIMO) antenna operating in a 5G band for smartphone mobile is presented. The antenna contains six antenna elements covering a dual-frequency range including 3.42-3.77 GH... Read More about F-Shape Dual-Band MIMO Antenna System for Next- Generation Smartphone Applications.

A New Optimization Algorithm Based on the Fungi Kingdom Expansion Behavior for Antenna Applications (2021)
Journal Article
Alnahwi, F. M., Yasir, I. A., Sattar, D., Ali, R. S., See, C. H., & Abd-Alhameed, R. A. (2021). A New Optimization Algorithm Based on the Fungi Kingdom Expansion Behavior for Antenna Applications. Electronics, 10(17), Article 2057. https://doi.org/10.3390/electronics10172057

This paper presents a new optimization algorithm based on the behavior of the fungi kingdom expansion (FKE) to optimize the radiation pattern of the array antenna. The immobile mass expansion of the fungi is mimicked in this work as a chaotic behavio... Read More about A New Optimization Algorithm Based on the Fungi Kingdom Expansion Behavior for Antenna Applications.

Improved Adaptive Impedance Matching for RF Front-End Systems of Wireless Transceivers (2020)
Journal Article
Alibakhshikenari, M., Virdee, B. S., Shukla, . P., See, C. H., Abd-Alhameed, R., Falcone, F., & Limiti, . E. (2020). Improved Adaptive Impedance Matching for RF Front-End Systems of Wireless Transceivers. Scientific Reports, 10(1), Article 14065 (2020). https://doi.org/10.1038/s41598-020-71056-0

In this paper an automatic adaptive antenna impedance tuning algorithm is presented that is based on quantum inspired genetic optimization technique. The proposed automatic quantum genetic algorithm (AQGA) is used to find the optimum solution for a l... Read More about Improved Adaptive Impedance Matching for RF Front-End Systems of Wireless Transceivers.

High Performance Metasurface-Based On-Chip Antenna for Terahertz Integrated Circuits (2020)
Presentation / Conference Contribution
Alibakhshikenari, M., Virdee, B. S., See, C. H., A. Abd-Alhameed, R., Falcone, F., & Limiti, E. (2020, July). High Performance Metasurface-Based On-Chip Antenna for Terahertz Integrated Circuits. Presented at 2020 Third International Workshop on Mobile Terahertz Systems (IWMTS), Essen, Germany

This paper presents a simple prototype of a metasurface-based on-chip antenna operating in 0.3-0.32 THz. The proposed structure is constructed from two layers of polyimide-substrates with thickness of 0.1mm that sandwich a middle metallic ground-plan... Read More about High Performance Metasurface-Based On-Chip Antenna for Terahertz Integrated Circuits.

Study on Improvement of the Performance Parameters of a Novel 0.41-0.47 THz On-Chip Antenna Based on Metasurface Concept Realized on 50um GaAs-Layer (2020)
Journal Article
Alibakhshikenari, M., Virdee, B. S., See, C. H., Shukla, P., Salekzamankhani, S., Abd-Alhameed, R., Falcone, F., & Limiti, E. (2020). Study on Improvement of the Performance Parameters of a Novel 0.41-0.47 THz On-Chip Antenna Based on Metasurface Concept Realized on 50um GaAs-Layer. Scientific Reports, 10(1), Article 11034. https://doi.org/10.1038/s41598-020-68105-z

A feasibility study is presented on the performance parameters of a novel on-chip antenna based on metasurface technology at terahertz band. The proposed metasurface on-chip antenna is constructed on an electrically thin high-permittivity gallium ars... Read More about Study on Improvement of the Performance Parameters of a Novel 0.41-0.47 THz On-Chip Antenna Based on Metasurface Concept Realized on 50um GaAs-Layer.

Mutual Coupling Reduction of Dual-Band Uni-Planar MIMO System Using Neutralization Line Technique (2020)
Journal Article
Saleh, A. M., Nagem, T. A., Abd-Alhameed, R., Noras, J., & See, C. H. (2020). Mutual Coupling Reduction of Dual-Band Uni-Planar MIMO System Using Neutralization Line Technique. The Applied Computational Electromagnetics Society Journal, 35(2), 176-186

This paper presents a low–profile dual-band (2×2) MIMO antenna that works at 2.4GHz, 5.2GHz and 5.8GHz for wireless local area networks (WLAN) applications. A neutralization line technique for enhancing the isolation is used by introducing strip line... Read More about Mutual Coupling Reduction of Dual-Band Uni-Planar MIMO System Using Neutralization Line Technique.

Isolation Enhancement of Densely Packed Array Antennas with Periodic MTM-Photonic Bandgap for SAR and MIMO Systems (2019)
Journal Article
Alibakhshikenari, M., Virdee, B. S., Shukla, P., See, C. H., Abd-Alhameed, R., Falcone, F., Quazzane, K., & Limiti, E. (2020). Isolation Enhancement of Densely Packed Array Antennas with Periodic MTM-Photonic Bandgap for SAR and MIMO Systems. IET microwaves, antennas & propagation, 14(3), 183-188. https://doi.org/10.1049/iet-map.2019.0362

A metamaterial photonic bandgap (MTM-PBG) periodic structure is used as a decoupling frame to improve the isolation between transmit–receive (T/R) sections of densely packed array antenna in synthetic aperture radar (SAR) and multiple-input multiple-... Read More about Isolation Enhancement of Densely Packed Array Antennas with Periodic MTM-Photonic Bandgap for SAR and MIMO Systems.

Expanding the portfolio of tribo-positive materials: aniline formaldehyde condensates for high charge density triboelectric nanogenerators (2019)
Journal Article
Zhao, P., Soin, N., Kumar, A., Shi, L., Guan, S., Tsonos, C., Yu, Z., Ray, S. C., McLaughlin, J. A., Zhu, Z., Zhou, E., Geng, J., See, C. H., & Luo, J. (2020). Expanding the portfolio of tribo-positive materials: aniline formaldehyde condensates for high charge density triboelectric nanogenerators. Nano Energy, 67, Article 104291. https://doi.org/10.1016/j.nanoen.2019.104291

The rapid uptake of energy harvesting triboelectric nanogenerators (TENGs) for self-powered electronics requires the development of high-performance tribo-materials capable of providing large power outputs. This work reports on the synthesis and use... Read More about Expanding the portfolio of tribo-positive materials: aniline formaldehyde condensates for high charge density triboelectric nanogenerators.

Silicon-Based 0.450-0.475 THz Series-Fed Double Dielectric Resonator On-Chip Antenna Array Based on Metamaterial Properties for Integrated-Circuits (2019)
Presentation / Conference Contribution
Alibakhshikenari, M., Virdee, B. S., See, C., Abd-Alhameed, R., Falcone, F., & Limiti, E. (2019, September). Silicon-Based 0.450-0.475 THz Series-Fed Double Dielectric Resonator On-Chip Antenna Array Based on Metamaterial Properties for Integrated-Circuits. Presented at 13th International Congress on Artificial Materials for Novel Wave Phenomena – Metamaterials, Rome, Italy

The antenna array designed to operate over 0.450-0.475 Terahertz comprises two dielectric resonators (DRs) that are stacked vertically on top of each other and placed on the surface of the slot antenna fabricated on a silicon substrate using standard... Read More about Silicon-Based 0.450-0.475 THz Series-Fed Double Dielectric Resonator On-Chip Antenna Array Based on Metamaterial Properties for Integrated-Circuits.

High-Performance 50μm Silicon-Based On-Chip Antenna with High Port-To-Port Isolation Implemented by Metamaterial and SIW Concepts for THz Integrated Systems (2019)
Presentation / Conference Contribution
Alibakhshikenari, M., Virdee, B. S., See, C., Abd-Alhameed, R., Falcone, F., & Limiti, E. (2019, September). High-Performance 50μm Silicon-Based On-Chip Antenna with High Port-To-Port Isolation Implemented by Metamaterial and SIW Concepts for THz Integrated Systems. Presented at 13th International Congress on Artificial Materials for Novel Wave Phenomena – Metamaterials, Rome, Italy

A novel 50μm Silicon-based on-chip antenna is presented that combines metamaterial (MTM) and substrate integrated waveguide (SIW) technologies for integration in THz circuits operating from 0.28 to 0.30 THz. The antenna structure comprises a square p... Read More about High-Performance 50μm Silicon-Based On-Chip Antenna with High Port-To-Port Isolation Implemented by Metamaterial and SIW Concepts for THz Integrated Systems.

Antenna for Ultra-Wideband Applications with Non-Uniform Defected Ground Plane and Offset Aperture-Coupled Cylindrical Dielectric Resonators (2019)
Journal Article
Zebiri, C., Sayad, D., Elfergani, I., Kosha, J., Mshwat, W., See, C. H., Lashab, M., Rodriguez, J., Sayidmarie, K. H., Obeidat, H., & Abd-Alhameed, R. (2019). Antenna for Ultra-Wideband Applications with Non-Uniform Defected Ground Plane and Offset Aperture-Coupled Cylindrical Dielectric Resonators. IEEE Access, 7, 166776-166787. https://doi.org/10.1109/ACCESS.2019.2949527

A new compact Cylindrical Dielectric Resonator Antenna (CDRA) with a defected ground for ultra-wideband applications is presented. The structure is based on two cylindrical dielectric resonators asymmetrically located with respect to the center of an... Read More about Antenna for Ultra-Wideband Applications with Non-Uniform Defected Ground Plane and Offset Aperture-Coupled Cylindrical Dielectric Resonators.

Design of mobile band subsurface antenna for drainage infrastructure monitoring (2019)
Journal Article
See, C. H., Kosha, J., Mshwat, W. A., Abd-Alhameed, R. A., Ong, F. L., McEwan, N. J., & Excell, P. S. (2019). Design of mobile band subsurface antenna for drainage infrastructure monitoring. IET microwaves, antennas & propagation, 13(13), 2380-2385. https://doi.org/10.1049/iet-map.2019.0243

This paper presents an underground subsurface wireless sensor for drainage infrastructure water level monitoring. It operates from 800 to 2170 MHz to cover the required GSM850/900, GSM1800/1900 and UMTS bands. The system consists of a wideband antenn... Read More about Design of mobile band subsurface antenna for drainage infrastructure monitoring.