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Dual-Polarized Highly Folded Bowtie Antenna with Slotted Self-Grounded Structure for Sub-6 GHz 5G Applications (2021)
Journal Article
Alibakhshikenari, M., Virdee, B. S., See, C. H., Shukla, P., Mansouri Moghaddam, S., Uz Zaman, A., Shafqaat, S., Akinsolu, M. O., Liu, B., Yang, J., Abd-Alhameed, R., Falcone, F., & Limiti, E. (2022). Dual-Polarized Highly Folded Bowtie Antenna with Slotted Self-Grounded Structure for Sub-6 GHz 5G Applications. IEEE Transactions on Antennas and Propagation, 70(4), 3028-3033. https://doi.org/10.1109/TAP.2021.3118784

In this paper, a novel dual-polarized highly-folded self-grounded Bowtie antenna that is excited through I-shaped slots is proposed for applications in sub-6GHz 5G multiple-input-multiple-output (MIMO) antenna systems. The antenna consists of two pai... Read More about Dual-Polarized Highly Folded Bowtie Antenna with Slotted Self-Grounded Structure for Sub-6 GHz 5G 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.

Optimum Power Transfer in RF Front End Systems Using Adaptive Impedance Matching Technique (2021)
Journal Article
Alibakhshikenari, M., Virdee, B. S., Azpilicueta, L., See, C. H., Abd-Alhameed, R., Althuwayb, A. A., Falcone, F., Huynen, I., Denidni, T. A., & Limiti, E. (2021). Optimum Power Transfer in RF Front End Systems Using Adaptive Impedance Matching Technique. Scientific Reports, 11, Article 11825 (2021). https://doi.org/10.1038/s41598-021-91355-4

Matching the antenna’s impedance to the RF-front-end of a wireless communications system is challenging as the impedance varies with its surround environment. Autonomously matching the antenna to the RF-front-end is therefore essential to optimize po... Read More about Optimum Power Transfer in RF Front End Systems Using Adaptive Impedance Matching Technique.

High-Isolation Antenna Array Using SIW and Realized with a Graphene Layer for Sub-Terahertz Wireless Applications (2021)
Journal Article
Alibakhshikenari, M., Virdee, B. S., Salekzamankhani, S., Aïssa, S., See, C. H., Soin, N., Fishlock, S. J., Althuwayb, A. A., Abd-Alhameed, R., Huynen, I., Mclaughlin, J. A., Falcone, F., & Limiti, E. (2021). High-Isolation Antenna Array Using SIW and Realized with a Graphene Layer for Sub-Terahertz Wireless Applications. Scientific Reports, 11, Article 10218 (2021). https://doi.org/10.1038/s41598-021-87712-y

This paper presents the results of a study on developing an effective technique to increase the performance characteristics of array antennas for sub-THz integrated circuit applications. This is an essential to compensate the limited power of sub-THz... Read More about High-Isolation Antenna Array Using SIW and Realized with a Graphene Layer for Sub-Terahertz Wireless Applications.

Impedance Bandwidth Improvement of a Planar Antenna Based on Metamaterial-Inspired T-Matching Network (2021)
Journal Article
Alibakhshikenari, M., Virdee, B. S., Shukla, P., Wang, Y., Azpilicueta, L., Naser-Moghadasi, M., See, C. H., Elfergani, I., Zebiri, C., Abd-Alhameed, R. A., Huynen, I., Rodriguez, J., Denidni, T. A., Falcone, F., & Limiti, E. (2021). Impedance Bandwidth Improvement of a Planar Antenna Based on Metamaterial-Inspired T-Matching Network. IEEE Access, 9, 67916-67927. https://doi.org/10.1109/access.2021.3076975

In this paper a metamaterial-inspired T-matching network is directly imbedded inside the feedline of a microstrip antenna to realize optimum power transfer between the front-end of an RF wireless transceiver and the antenna. The proposed T-matching n... Read More about Impedance Bandwidth Improvement of a Planar Antenna Based on Metamaterial-Inspired T-Matching Network.

Bandwidth and Gain Enhancement of Composite Right Left Handed Metamaterial Transmission Line Planar Antenna Employing a Non Foster Impedance Matching Circuit Board (2021)
Journal Article
Alibakhshikenari, M., Virdee, B. S., Althuwayb, . A., Azpilicueta, L., Parchin, N., See, C. H., Abd-Alhameed, R., Falcone, F., Huynen, I., Denidni, T., & Limiti, E. (2021). Bandwidth and Gain Enhancement of Composite Right Left Handed Metamaterial Transmission Line Planar Antenna Employing a Non Foster Impedance Matching Circuit Board. Scientific Reports, 11, Article 7472 (2021). https://doi.org/10.1038/s41598-021-86973-x

Via-less Electromagnetic Band-Gap-Enabled Antenna based on Textile Material for Wearable Applications (2021)
Journal Article
Elamin, N., Zubair, . M., Ashyap, A. I., Dahlan, S. H., Abidin, Z., See, C. H., Fadhali, A., Mukred, J. A. A., Salehv, . G., & Esmail, . B. F. (2021). Via-less Electromagnetic Band-Gap-Enabled Antenna based on Textile Material for Wearable Applications. PLOS ONE, 16(1), Article e0246057. https://doi.org/10.1371/journal.pone.0246057

A compact fabric antenna structure integrated with a miniature electromagnetic band-gap structures (EBGs) covering the desired frequency spectrum between 2.36 GHz and 2.40 GHz of the Medical Wireless Body Networks (MBANs), is introduced. To satisfy t... Read More about Via-less Electromagnetic Band-Gap-Enabled Antenna based on Textile Material for Wearable Applications.

An Acoustic Sensor for Combined Sewer Overflow (CSO) Screen Condition Monitoring in a Drainage Infrastructure (2021)
Journal Article
See, C. H., Horoshenkov, K. V., Bin Ali, . M. T., & Tait, S. J. (2021). An Acoustic Sensor for Combined Sewer Overflow (CSO) Screen Condition Monitoring in a Drainage Infrastructure. Sensors, 21(2), Article 404. https://doi.org/10.3390/s21020404

Combined sewer overflow structures (CSO) play an important role in sewer networks. When the local capacity of a sewer system is exceeded during intense rainfall events, they act as a “safety valve” and discharge excess rainfall run-off and wastewater... Read More about An Acoustic Sensor for Combined Sewer Overflow (CSO) Screen Condition Monitoring in a Drainage Infrastructure.

Singular Integral Formulations for Electrodynamic Analysis of Metamaterial-Inspired Antenna Array (2020)
Journal Article
Alibakhshikenari, M., Virdee, B. S., Aïssa, S., See, C. H., Althuwayb, A. A., Abd-Alhameed, R., Huynen, I., Falcone, F., & Limiti, E. (2021). Singular Integral Formulations for Electrodynamic Analysis of Metamaterial-Inspired Antenna Array. IEEE Antennas and Wireless Propagation Letters, 20(2), 179-183. https://doi.org/10.1109/lawp.2020.3043380

In this paper, a set of singular integral formulations are derived to calculate the surface impedance matrix on the antenna array elements. The proposed mathematical model enables electrodynamic analysis of antenna arrays designed using metamaterial-... Read More about Singular Integral Formulations for Electrodynamic Analysis of Metamaterial-Inspired Antenna Array.

Study on On-Chip Antenna Design Based on Metamaterial-Inspired and Substrate Integrated Waveguide Properties for Millimetre-Wave and THz Integrated-Circuit Applications (2020)
Journal Article
Alibakhshikenari, M., Virdee, B., Althuwayb, A., Aissa, S., See, C. H., Abd-Alhameed, R., Falcone, F., & Limiti, E. (2021). Study on On-Chip Antenna Design Based on Metamaterial-Inspired and Substrate Integrated Waveguide Properties for Millimetre-Wave and THz Integrated-Circuit Applications. Journal of Infrared, Millimeter and Terahertz Waves, 42, 17-28. https://doi.org/10.1007/s10762-020-00753-8

This paper presents the results of a study on improving the performance parameters such as the impedance bandwidth, radiation gain and efficiency, as well as suppressing substrate loss of an innovative antenna for on-chip implementation for millimetr... Read More about Study on On-Chip Antenna Design Based on Metamaterial-Inspired and Substrate Integrated Waveguide Properties for Millimetre-Wave and THz Integrated-Circuit Applications.

A Comprehensive Survey on “Various Decoupling Mechanisms With Focus on Metamaterial and Metasurface Principles Applicable to SAR and MIMO Antenna Systems” (2020)
Journal Article
Althuwayb, A. A., Alibakhshikenari, M., Babaeian, F., Virdee, B. S., Aïssa, S., Azpilicueta, L., See, C. H., Huynen, I., Abd-Alhameed, R. A., Falcone, F., & Limiti, E. (2020). A Comprehensive Survey on “Various Decoupling Mechanisms With Focus on Metamaterial and Metasurface Principles Applicable to SAR and MIMO Antenna Systems”. IEEE Access, 8, 192965-193004. https://doi.org/10.1109/access.2020.3032826

Nowadays synthetic aperture radar (SAR) and multiple-input-multiple-output (MIMO) antenna systems with the capability to radiate waves in more than one pattern and polarization are playing a key role in modern telecommunication and radar systems. Thi... Read More about A Comprehensive Survey on “Various Decoupling Mechanisms With Focus on Metamaterial and Metasurface Principles Applicable to SAR and MIMO Antenna Systems”.

A Low Power Sigma-Delta Modulator with Hybrid Architecture (2020)
Journal Article
An, S., Xia, S., Ma, Y., Ghani, A., See, C. H., Abd-Alhameed, R. A., Niu, C. F., & Yang, R. (2020). A Low Power Sigma-Delta Modulator with Hybrid Architecture. Sensors, 20(18), Article 5309. https://doi.org/10.3390/s20185309

Analogue-to-digital converters (ADC) using oversampling technology and Σ-∆ modulation mechanism are widely applied in digital audio systems. This paper presents an audio modulator with high accuracy and low power consumption by using discrete second-... Read More about A Low Power Sigma-Delta Modulator with Hybrid Architecture.

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.

Compact Wideband MIMO Diversity Antenna for Mobile Applications Using Multi-Layered Structure (2020)
Journal Article
Arabi, O., See, C. H., Ullah, A., Ali, N., Liu, B., Abd-Alhameed, R., McEwan, N. J., & Excell, P. S. (2020). Compact Wideband MIMO Diversity Antenna for Mobile Applications Using Multi-Layered Structure. Electronics, 9(8), Article 1307. https://doi.org/10.3390/electronics9081307

A closely packed wideband multiple-input multiple-output (MIMO)/diversity antenna (of two ports) with a small size of less than 18.5 mm by 18.5 mm is proposed for mobile communication applications. The antenna can be orthogonally configured for corne... Read More about Compact Wideband MIMO Diversity Antenna for Mobile Applications Using Multi-Layered Structure.

A Comprehensive Survey of “Metamaterial Transmission-Line Based Antennas: Design, Challenges, and Applications” (2020)
Journal Article
Alibakhshikenari, M., Virdee, B. S., Azpilicueta, L., Naser-Moghadasi, M., Akinsolu, M. O., See, C. H., Liu, B., Abd-Alhameed, R. A., Falcone, F., Huynen, I., Denidni, T. A., & Limiti, E. (2020). A Comprehensive Survey of “Metamaterial Transmission-Line Based Antennas: Design, Challenges, and Applications”. IEEE Access, 8, 144778-144808. https://doi.org/10.1109/ACCESS.2020.3013698

In this review paper, a comprehensive study on the concept, theory, and applications of composite right/left-handed transmission lines (CRLH-TLs) by considering their use in antenna system designs have been provided. It is shown that CRLH-TLs with ne... Read More about A Comprehensive Survey of “Metamaterial Transmission-Line Based Antennas: Design, Challenges, and Applications”.

High-Gain On-Chip Antenna Design on Silicon Layer With Aperture Excitation for Terahertz Applications (2020)
Journal Article
Alibakhshikenari, M., Virdee, B. S., Khalily, M., See, C. H., Abd-Alhameed, R., Falcone, F., Denidni, T. A., & Limiti, E. (2020). High-Gain On-Chip Antenna Design on Silicon Layer With Aperture Excitation for Terahertz Applications. IEEE Antennas and Wireless Propagation Letters, 19(9), 1576-1580. https://doi.org/10.1109/LAWP.2020.3010865

This article investigates the feasibility of designing a high-gain on-chip antenna on silicon technology for sub-terahertz applications over a wide frequency range. High-gain is achieved by exciting the antenna using an aperture fed mechanism to coup... Read More about High-Gain On-Chip Antenna Design on Silicon Layer With Aperture Excitation for Terahertz Applications.

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.

A 10:1 Bandwidth Cryogenic Quadruple-Ridged Flared Horn Design for Reflector Antennas in Radio Astronomy (2020)
Journal Article
Ma, Y., See, C. H., Pang, F., Wu, D., Liu, D., Abidin, Z. Z., Keates, S., Peng, B., & Abd-Alhameed, R. A. (2020). A 10:1 Bandwidth Cryogenic Quadruple-Ridged Flared Horn Design for Reflector Antennas in Radio Astronomy. IEEE Access, 8, 81101-81115. https://doi.org/10.1109/ACCESS.2020.2991350

A two port 2.4 to 24 GHz cryogenic Quadruple-Ridged Flared Horn (QRFH) Feed with 10:1 impedance bandwidth is selected for presentation and investigation in this paper. The antenna geometry is formed by using simulation-based optimization which s... Read More about A 10:1 Bandwidth Cryogenic Quadruple-Ridged Flared Horn Design for Reflector Antennas in Radio Astronomy.

Design and Optimization of a Slotted Monopole Antenna for Ultra-Wide Band Body Centric Imaging Applications (2020)
Journal Article
Danjuma, I. M., Akinsolu, M. O., See, C. H., Abd-Alhameed, R. A., & Liu, B. (2020). Design and Optimization of a Slotted Monopole Antenna for Ultra-Wide Band Body Centric Imaging Applications. IEEE Journal of Electromagnetics, RF and Microwaves in Medicine and Biology, 4(2), 140-147. https://doi.org/10.1109/JERM.2020.2984910

This paper presents a cost-efficient design, optimization and physical implementation of a compact slotted ultra-wideband (UWB) monopole antenna for body-centric imaging applications. The proposed antenna is initially modelled and designed with the a... Read More about Design and Optimization of a Slotted Monopole Antenna for Ultra-Wide Band Body Centric Imaging Applications.