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All Outputs (170)

Dual-Band and Wide Band Tuning Antennas for Mobile and Wireless Communications (2011)
Presentation / Conference Contribution
E.Elfergani, I., Abd-Alhameed, R. A., Hwang See, C., Hraga, H. I., Sadeghpour, T., Alhaddad, A., & Excell, P. (2011). Dual-Band and Wide Band Tuning Antennas for Mobile and Wireless Communications.

Two tunable PIFA antennas are presented. The first is a dual-band handset antenna with tuning introduced across the slot using either a lumped capacitor or a varactor diode. Suitable tunability is initially established and tested for two resonant fre... Read More about Dual-Band and Wide Band Tuning Antennas for Mobile and Wireless Communications.

A compact size reconfigurable PIFA antenna for use in mobile handset (2011)
Presentation / Conference Contribution
Elfergani, I. T. E., Abd-Alhameed, R. A., See, C. H., Sadeghpour, T., Dama, Y., Jones, J., & Excell, P. S. (2011). A compact size reconfigurable PIFA antenna for use in mobile handset. . https://doi.org/10.1109/ursigass.2011.6050320

A planar inverted-F type reconfigurable antenna with slot is presented. The antenna can cover frequency bands which include Digital Cellular Service (DCS: 1710-1880 MHz), Personal Communication Service (PCS: 1850-1990 MHz), and Universal Mobile Telec... Read More about A compact size reconfigurable PIFA antenna for use in mobile handset.

Dual-bands four-element antenna array design for MIMO application (2011)
Presentation / Conference Contribution
Abidin, Z., Abd-Alhameed, R., Ma, Y., Ramli, R., & See, C. (2011). Dual-bands four-element antenna array design for MIMO application.

A compact of 4 x 4 crescent antennas operating on dual-band frequency in Multiple-Input Multiple-Output (MIMO) application technology, printed on a relatively low dielectric constant substrate is presented. In order to enhance the mutual coupling, th... Read More about Dual-bands four-element antenna array design for MIMO application.

A Compact Tuneable PIFLA Notched Ultra-Wideband Antenna for Wireless Applications (2011)
Presentation / Conference Contribution
Elfergani, I., Abd-Alhameed, R., See, C., Hraga, H., & Ramli, K. (2011). A Compact Tuneable PIFLA Notched Ultra-Wideband Antenna for Wireless Applications.

This paper proposes a compact PIFLA ultra-wideband (UWB) antenna with a tuneable band-notched response from 3.2 to 4.5 GHz. Tuning of the rejected frequency is realised by loading an embedded resonant slot with lumped capacitors (equivalent to varact... Read More about A Compact Tuneable PIFLA Notched Ultra-Wideband Antenna for Wireless Applications.

A Dual-Band Frequency Tunable Planar Inverted F Antenna (2011)
Presentation / Conference Contribution
Elfergani, I., Hussaini, A. S., Abd-Alhameed, R., See, C., Hraga, H., Bin-Melha, M., …Rodriguez, J. (2011). A Dual-Band Frequency Tunable Planar Inverted F Antenna.

The design process of dual-band reconfigurable PIFA antenna is introduced and investigated. The design procedure is based on loading a lumped capacitor (or varactor) at one fixed location along a slot of the radiator. The changes in first and second... Read More about A Dual-Band Frequency Tunable Planar Inverted F Antenna.

PIFA Antenna for UWB Applications with WLAN Band Rejection Using Spiral Slots (2011)
Presentation / Conference Contribution
Hraga, H., See, C., Abd-Alhameed, R., Zhou, D., Adnan, S., Elfergani, I., …Excell, P. (2011). PIFA Antenna for UWB Applications with WLAN Band Rejection Using Spiral Slots.

This paper presents a band-suppressed PIFA antenna for UWB application using spiral slot. The modeling of the antenna geometry structures and the optimisation of the full antenna assembly was carried out in the frequency and time domains using Ansoft... Read More about PIFA Antenna for UWB Applications with WLAN Band Rejection Using Spiral Slots.

Harmonic-suppression Using Adaptive Surface Meshing and Genetic Algorithms (2011)
Presentation / Conference Contribution
Bin-Melha, M., Abd-Alhameed, R., Zhou, D., Zainal-Abdin, Z., See, C., Elfergani, I., & Excell, P. (2011). Harmonic-suppression Using Adaptive Surface Meshing and Genetic Algorithms.

A novel design strategy for microstrip harmonic-suppression antennas is presented. The computational method is based on an integral equation solver using adaptive surface meshing driven by a genetic algorithm. Two examples are illustrated, all involv... Read More about Harmonic-suppression Using Adaptive Surface Meshing and Genetic Algorithms.

Frequency Tuned Planar Inverted F Antenna with L Shaped Slit Design for Wide Frequency Range (2011)
Presentation / Conference Contribution
Elfergani, I., Hussaini, A. S., Abd-Alhameed, R., See, C., Abusitta, M. M., Hraga, H., …Rodriguez, J. (2011). Frequency Tuned Planar Inverted F Antenna with L Shaped Slit Design for Wide Frequency Range.

A frequency tuned antenna has been designed to meet the coverage requirements of the DCS, PCS, UMTS and WLAN bands. The antenna consists of a main patch, and a planar inverted L (PIL) slot. The radiator patch is fed, and shorted, using simple feed li... Read More about Frequency Tuned Planar Inverted F Antenna with L Shaped Slit Design for Wide Frequency Range.

The Compact Design of Dual-Band and Wideband Planar Inverted F-L-Antennas for WLAN and UWB Applications (2011)
Presentation / Conference Contribution
Hraga, H., See, C. H., Abd-Alhameed, R., Adnan, S., Elfergani, I., & Elmegri, F. E. (2011). The Compact Design of Dual-Band and Wideband Planar Inverted F-L-Antennas for WLAN and UWB Applications.

Two miniature low profile PIFLA antennas with a compact volume size of 30 mm x 15 mm x 8 mm has presented in this paper. By applying the magnetic wall concept a reduced size dual-band and a wideband half PIFLAs for WLAN (2.4 GHz/5.2 GHz) and UWB appl... Read More about The Compact Design of Dual-Band and Wideband Planar Inverted F-L-Antennas for WLAN and UWB Applications.

Compact Tunable Microstrip F-Slot antenna for Mobile Handset Applications (2011)
Presentation / Conference Contribution
Elfergani, I., Abd-Alhameed, R. A., See, C. H., Abidin, Z., Hraga, H., & Excell, P. (2011). Compact Tunable Microstrip F-Slot antenna for Mobile Handset Applications.

This paper presents a design for a single-feed, compact, tunable microstrip F- slot antenna capable of achieving high tuning ranges without using any matching networks. An F shaped slot embedded in a patch is used to generate resonant frequencies. Th... Read More about Compact Tunable Microstrip F-Slot antenna for Mobile Handset Applications.

A capacitively loaded antenna for use in mobile handsets (2010)
Presentation / Conference Contribution
Elfergani, I., Abd-Alhameed, R., See, C., Child, M., & Excell, P. (2010). A capacitively loaded antenna for use in mobile handsets. . https://doi.org/10.1109/lapc.2010.5666208

A tuneable slotted patch antenna design is presented and verified for use in the DCS, PCS and UMTS bands. The tuning circuit consists of two varactor diodes, with some passive components, and is integrated fully with the radiator patch, with the vara... Read More about A capacitively loaded antenna for use in mobile handsets.

Design of a planar inverted F-L antenna (PIFLA) for lower-band UWB applications (2010)
Presentation / Conference Contribution
Hraga, H., See, C., Abd-Alhameed, R., Jones, S., Child, M., Elfergani, I., & Excell, P. (2010). Design of a planar inverted F-L antenna (PIFLA) for lower-band UWB applications. . https://doi.org/10.1109/lapc.2010.5666202

This paper examines the case for an ultrawideband planar inverted-F-L-antenna design intended for use in the lower sub-band. The antenna construction is based on the conventional inverted F, and inverted L as its feed element, and parasitic element,... Read More about Design of a planar inverted F-L antenna (PIFLA) for lower-band UWB applications.

Novel Wideband Harmonic Suppression Antenna Designed using Adaptive meshing and Genetic Algorithms (2010)
Presentation / Conference Contribution
Zhou, D., Abd-Alhameed, R., See, C., & Excell, P. (2010, September). Novel Wideband Harmonic Suppression Antenna Designed using Adaptive meshing and Genetic Algorithms. Presented at 2010 Asia-Pacific Radio Science Conference (AP-RASC'10), Toyama, Japan

Microstrip patch antennas with harmonic suppression are designed and optimised, using a genetic algorithm and applying a novel adaptive meshing program to generate a wire-grid simulation. A coaxially-fed air-dielectric patch antenna design with a fol... Read More about Novel Wideband Harmonic Suppression Antenna Designed using Adaptive meshing and Genetic Algorithms.

Design of Planar Double Inverted-F Antenna for Ultra-Wideband Applications (2010)
Presentation / Conference Contribution
See, C., Abd-Alhameed, R., Zhou, D., & Excell, P. (2010, September). Design of Planar Double Inverted-F Antenna for Ultra-Wideband Applications. Presented at 2010 Asia-Pacific Radio Science Conference (AP-RASC'10), Toyama, Japan

A novel miniaturized planar double inverted-F antenna is presented. The antenna design is based on the electromagnetic coupling of two air dielectric PIFA antennas, combined with a broadband rectangular plate feed structure to achieve ultra-wideband... Read More about Design of Planar Double Inverted-F Antenna for Ultra-Wideband Applications.

Small Wideband Antenna For GSM And WLAN Applications (2010)
Presentation / Conference Contribution
Hraga, H., See, C., Abd-Alhameed, R., Zhou, D., Adnan, S., Elfergani, I., & Excell, P. (2010). Small Wideband Antenna For GSM And WLAN Applications.

In this paper, a small printed antenna for mobile handset and WLAN applications is presented and discussed. The proposed antenna is a printed crescent shape monopole which is mounted on top of a defected ground plane. A 50 ohms microstrip line is use... Read More about Small Wideband Antenna For GSM And WLAN Applications.

Miniature dual-frequency half planar inverted F-L-antenna for WLAN/cellular applications (2009)
Presentation / Conference Contribution
See, C., Abd-Alhameed, R., Zhou, D., Elkhazmi, E., Abusitta, M., Ramli, K., & Excell, P. (2009, December). Miniature dual-frequency half planar inverted F-L-antenna for WLAN/cellular applications. Presented at 2009 Asia Pacific Microwave Conference - (APMC 2009), Singapore, Singapore

A reduced size miniature dual-bands planar inverted F-L antenna for WLAN and cellular applications is achieved by applying the magnetic wall concept. The proposed antenna provides a 12% and 9.3% bandwidth at S₁₁ < -10 dB for 2.5 GHz and 5.2 GHz WLAN... Read More about Miniature dual-frequency half planar inverted F-L-antenna for WLAN/cellular applications.

Precise computation of the induced fields inside biological cell tissue using floquet boundary and subgridding quasi-static FDTD method (2009)
Presentation / Conference Contribution
Ramli, K., Abd-Alhameed, R., See, C., Zhou, D., Elkhazmi, E., & Excell, P. (2009, December). Precise computation of the induced fields inside biological cell tissue using floquet boundary and subgridding quasi-static FDTD method. Presented at 2009 Asia Pacific Microwave Conference - (APMC 2009), Singapore, Singapore

This paper demonstrates the detailed electromagnetic modelling of biological cell structures by using modified subgridding FDTD techniques. This is done by incorporating a quasi-static FDTD solution, Floquet periodic boundary conditions and modified... Read More about Precise computation of the induced fields inside biological cell tissue using floquet boundary and subgridding quasi-static FDTD method.

A Zigbee based wireless sensor network for sewerage monitoring (2009)
Presentation / Conference Contribution
See, C., Horoshenkov, K., Tait, S., Abd-Alhameed, R., Hu, Y., Elkhazmi, E., & Gardiner, J. (2009, December). A Zigbee based wireless sensor network for sewerage monitoring. Presented at 2009 Asia Pacific Microwave Conference - (APMC 2009), Singapore, Singapore

Blockages in sewers are major causes of both sewer flooding and pollution. Water companies which fail to tackle this problem face hefty fines and high operational costs if they unsuccessful to provide a practical solution to prevent flooding. As a re... Read More about A Zigbee based wireless sensor network for sewerage monitoring.