Outputs (76)

Compact wideband balanced antenna for mobile handsets (2010)
Journal Article
Zhou, D., Abd-Alhameed, R., See, C. H., Alhaddad, A., & Excell, P. (2010). Compact wideband balanced antenna for mobile handsets. IET microwaves, antennas & propagation, 4(5), 600-608. https://doi.org/10.1049/iet-map.2009.0153

A novel miniature balanced mobile handset antenna is presented in this study, which covers digital communication system (DCS) (1710-1880 MHz), personal communication system (PCS) (1850-1990 MHz), universal mobile telecommunications system (UMTS) (192... Read More about Compact wideband balanced antenna for mobile handsets.

Wideband balanced folded dipole antenna with a dual-arm monopole structure for mobile handsets (2010)
Journal Article
Zhou, D., Abd-Alhameed, R., See, C. H., & Excell, P. (2010). Wideband balanced folded dipole antenna with a dual-arm monopole structure for mobile handsets. IET microwaves, antennas & propagation, 4(2), 240-246. https://doi.org/10.1049/iet-map.2008.0412

In this study, a balanced antenna for mobile handset applications with enhanced bandwidth performance, covering the bands from 1.8 to 2.45 GHz, is investigated. The antenna is a slot planar dipole with folded structure and a dual-arm on each half. Th... Read More about Wideband balanced folded dipole antenna with a dual-arm monopole structure for mobile handsets.

A Crescent-Shaped Multiband Planar Monopole Antenna for Mobile Wireless Applications (2010)
Journal Article
See, C. H., Abd-Alhameed, R. A., Zhou, D., Lee, T. H., & Excell, P. S. (2010). A Crescent-Shaped Multiband Planar Monopole Antenna for Mobile Wireless Applications. IEEE Antennas and Wireless Propagation Letters, 9, 152-155. https://doi.org/10.1109/lawp.2010.2044741

A planar multiband monopole antenna is presented for mobile wireless applications. The antenna is constructed from a crescent-shaped radiator patch, microstrip feed line, and defected ground structure (DGS). Theoretical and experimental characteristi... Read More about A Crescent-Shaped Multiband Planar Monopole Antenna for Mobile Wireless Applications.

Ultra-wideband planar inverted FF antenna (2010)
Journal Article
See, C. H., Abd-Alhameed, R., Zhou, D., Hraga, H., Excell, P., & Child, M. (2010). Ultra-wideband planar inverted FF antenna. Electronics Letters, 46(8), 549-550. https://doi.org/10.1049/el.2010.3131

A novel, miniaturised, planar inverted FF antenna (PIFFA) assembly is presented. The antenna design electromagnetically couples two PIFA antennas on an air substrate, and employs a broadband rectangular plate feeding mechanism to achieve an ultra-wid... Read More about Ultra-wideband planar inverted FF antenna.

Design of Dual-Band Quadrifilar Spiral Antennas For Satellite-Mobile Handsets (2010)
Journal Article
Zhou, D., Abd-Alhameed, R. A., See, C. H., & Excell, P. S. (2010). Design of Dual-Band Quadrifilar Spiral Antennas For Satellite-Mobile Handsets. Microwave and Optical Technology Letters, 52(4), 987-990. https://doi.org/10.1002/mop.25090

A novel quadrifilar spiral antenna is proposed for use in personal communications mobile terminals exploiting the “big low earth orbit” (big‐LEO) satellite system (uplink 1.61–1.63 GHz; downlink 2.48–2.5 GHz). Feeding of the antenna from the outer pe... Read More about Design of Dual-Band Quadrifilar Spiral Antennas For Satellite-Mobile Handsets.

Design of Wideband Balanced Folded-Arms Dipole Antenna for Mobile Handsets (2009)
Journal Article
Zhou, D., Abd-Alhameed, R. A., See, C. H., & Excell, P. S. (2009). Design of Wideband Balanced Folded-Arms Dipole Antenna for Mobile Handsets. Electromagnetics, 29(8), 641-651. https://doi.org/10.1080/02726340903287406

Investigations of a wideband balanced antenna for mobile handsets covering three bands—GSM1800, GSM1900, and UMTS—are presented. Balanced antennas have advantages in handset applications as they are less affected by juxtaposition with human tissue th... Read More about Design of Wideband Balanced Folded-Arms Dipole Antenna for Mobile Handsets.

Quadrifilar Helical Antenna Design for Satellite-Mobile Handsets Using Genetic Algorithms (2009)
Journal Article
Zhou, D., See, C., Alhameed, R., Excell, P., Khalil, K., Hu, Y., & McEwan, N. (2009). Quadrifilar Helical Antenna Design for Satellite-Mobile Handsets Using Genetic Algorithms. Microwave and Optical Technology Letters, 51(11), 2668-2671. https://doi.org/10.1002/mop.24694

A circularly polarized quadrifilar helical antenna, operated at 2.4 GHz and intended for applications in satellite mobile communications, is designed using genetic algorithms (GA). The antenna was firstly considered as a test on an infinite ground pl... Read More about Quadrifilar Helical Antenna Design for Satellite-Mobile Handsets Using Genetic Algorithms.

A Wire-Grid Adaptive Meshing Program for Microstrip Patch Antenna Designs Using a Genetic Algorithm (2009)
Journal Article
Abd-Alhameed, R., Zhou, D., See, C., & Excel, P. (2009). A Wire-Grid Adaptive Meshing Program for Microstrip Patch Antenna Designs Using a Genetic Algorithm. IEEE Antennas and Propagation Magazine, 51(1), 147-151. https://doi.org/10.1109/MAP.2009.4939045

A program to adaptively generate equivalent wire-grid structures for electromagnetic simulation of two-dimensional structures has been developed. The main purpose of this program is to simulate planar microstrip-patch antenna designs, using the numer... Read More about A Wire-Grid Adaptive Meshing Program for Microstrip Patch Antenna Designs Using a Genetic Algorithm.

Microscopic Biological Cell Level Model Using Modified Finite-difference Time-domain at Mobile Radio Frequencies (2008)
Journal Article
See, C., Abd-Alhameed, R., Excell, P., & Zhou, D. (2008). Microscopic Biological Cell Level Model Using Modified Finite-difference Time-domain at Mobile Radio Frequencies. Progress In Electromagnetics Research Letters, 4(1), 6-10

The paper demonstrates the modelling of the interaction mechanism between the biological tissues and electromagnetic field at mobile communication frequency ranges. The implementing of modified FDTD numerical method using frequency scaled FDTD with F... Read More about Microscopic Biological Cell Level Model Using Modified Finite-difference Time-domain at Mobile Radio Frequencies.

Dual-Frequency Planar Inverted F-L-Antenna (PIFLA) for WLAN and Short Range Communication Systems (2008)
Journal Article
See, C. H., Abd-Alhameed, R. A., Zhou, D., & Excell, P. S. (2008). Dual-Frequency Planar Inverted F-L-Antenna (PIFLA) for WLAN and Short Range Communication Systems. IEEE Transactions on Antennas and Propagation, 56(10), 3318-3320. https://doi.org/10.1109/tap.2008.929537

The design and analysis is presented of a low profile and dual- frequency inverted L-F antenna for WLAN and short range wireless communications, providing a compromise between size reduction and attainable bandwidth. The optimum (minimized) volume of... Read More about Dual-Frequency Planar Inverted F-L-Antenna (PIFLA) for WLAN and Short Range Communication Systems.

Measure The Range of Sensor Network (2008)
Journal Article
See, C., Abd-Alhameed, R., Zhou, D., Hu, Y., & Horoshenkov, K. (2008). Measure The Range of Sensor Network. Microwaves & RF, 54(10), 69-76

These experiments considered the practical transmission distances between wireless sensors and their base stations under different environmental conditions and with different antennas.

Internal triple-band folded planar antenna design for third generation mobile handsets (2008)
Journal Article
See, C., Abd-Alhameed, R., Excell, P., McEwan, N., & Gardiner, J. (2008). Internal triple-band folded planar antenna design for third generation mobile handsets. IET microwaves, antennas & propagation, 2(7), 718-724. https://doi.org/10.1049/iet-map%3A20070356

A novel internal triple-band folded planar antenna for mobile handsets is introduced, formed by modifying the geometry of a rectangular patch antenna to include a shorting pin, folded sides, a shorted microstrip stub and a notch. The size of the ante... Read More about Internal triple-band folded planar antenna design for third generation mobile handsets.

Wideband Loaded Wire Bow-tie Antenna for Near Field Imaging Using Genetic Algorithms (2008)
Journal Article
Chung, S., Abd-Alhameed, R., See, C., & Excell, P. (2008). Wideband Loaded Wire Bow-tie Antenna for Near Field Imaging Using Genetic Algorithms. Progress In Electromagnetics Research Letters, 4, 591-595. https://doi.org/10.2529/piers080116072623

The potentially broad application area in engineering design using Genetic Algorithm (GA) has been widely adopted by many researchers due to its high consistency and accuracy. Presented here is the initial design of a wideband non-dispersive wire bow... Read More about Wideband Loaded Wire Bow-tie Antenna for Near Field Imaging Using Genetic Algorithms.

Design of Multiband Balanced Folded Dipole Antenna Based on a Dual-arm Structure for Mobile Handsets (2008)
Journal Article
Zhou, D., Abd-Alhameed, R., See, C., & Excell, P. (2008). Design of Multiband Balanced Folded Dipole Antenna Based on a Dual-arm Structure for Mobile Handsets. Progress In Electromagnetics Research Letters, 4, 821-824. https://doi.org/10.2529/piers071221132026

In this paper, a balanced antenna for mobile handset applications with enhanced bandwidth performance, that covers four bands (GSM1800, GSM1900, UMTS and 2.4-GHz WLAN), is investigated. The antenna is a slot planar dipole with folded structure and a... Read More about Design of Multiband Balanced Folded Dipole Antenna Based on a Dual-arm Structure for Mobile Handsets.

Design An Integrated Oscillator/Antenna (2008)
Journal Article
Abd-Alhameed, R., Zhou, D., See, C., Excell, P., Ghorbani, A., & McEwan, N. (2008). Design An Integrated Oscillator/Antenna. Microwaves & RF, 47(3), 59-66

This design tightly integrated an active oscillator with a microstrip patch antenna for miniaturization in WLAN, Bluetooth, and other 2.45-GHz systems.

Computation of Electromagnetic Fields in Assemblages of Biological Cells Using a Modified Finite-Difference Time-Domain Scheme (2007)
Journal Article
See, C. H., Abd-Alhameed, R. A., & Excell, P. S. (2007). Computation of Electromagnetic Fields in Assemblages of Biological Cells Using a Modified Finite-Difference Time-Domain Scheme. IEEE Transactions on Microwave Theory and Techniques, 55(9), 1986-1994. https://doi.org/10.1109/tmtt.2007.904064

When modeling objects that are small compared with the wavelength, e.g., biological cells at radio frequencies, the standard finite-difference time-domain (FDTD) method requires extremely small time-step sizes, which may lead to excessive computation... Read More about Computation of Electromagnetic Fields in Assemblages of Biological Cells Using a Modified Finite-Difference Time-Domain Scheme.