All Outputs (128)

A 1 x 8 Linear Ultra-Wideband Phased Array With Connected Dipoles and Hyperbolic Microstrip Baluns (2018)
Journal Article
He, R., Zhang, H., See, C. H., Su, Y., Ma, Y., Kong, D., Zhu, X., & Abd-Alhameed, R. (2018). A 1 x 8 Linear Ultra-Wideband Phased Array With Connected Dipoles and Hyperbolic Microstrip Baluns. IEEE Access, 6, 52953-52968. https://doi.org/10.1109/access.2018.2868779

A 1×8 linear single polarized ultra-wideband connected dipole phased array with wide angle scan range is proposed. The dipoles in the array are connected with each other in E-plane to improve the impedance matching on the low end of the frequency ban... Read More about A 1 x 8 Linear Ultra-Wideband Phased Array With Connected Dipoles and Hyperbolic Microstrip Baluns.

Wideband printed monopole antenna for application in wireless communication systems (2018)
Journal Article
Alibakhshikenari, M., Virdee, B. S., See, C. H., Abd-Alhameed, R., Ali, A., Falcone, F., & Limiti, E. (2018). Wideband printed monopole antenna for application in wireless communication systems. IET microwaves, antennas & propagation, 12(7), 1222-1230. https://doi.org/10.1049/iet-map.2017.0894

Empirical results of an electrically small printed monopole antenna is described with fractional bandwidth of 185% (115 MHz–2.90 GHz) for return-loss better than 10 dB, peak gain and radiation efficiency at 1.45 GHz of 2.35 dBi and 78.8%, respectivel... Read More about Wideband printed monopole antenna for application in wireless communication systems.

Meta-surface wall suppression of mutual coupling between microstrip patch antenna arrays for THz-band applications (2018)
Journal Article
Alibakhshikenari, M., Virdee, B., Shukla, P., See, C., Abd-Alhameed, R., Falcone, F., & Limiti, E. (2018). Meta-surface wall suppression of mutual coupling between microstrip patch antenna arrays for THz-band applications. Progress In Electromagnetics Research Letters, 75, 105-111. https://doi.org/10.2528/pierl18021908

This paper presents a novel 2D meta-surface wall to increase the isolation between microstrip patch radiators in an antenna array that is operating in the teraherz (THz) band of 139-141 GHz for applications including communications, medical and secur... Read More about Meta-surface wall suppression of mutual coupling between microstrip patch antenna arrays for THz-band applications.

Calibration model for detection of potential demodulating behaviour in biological media exposed to RF energy (2017)
Journal Article
See, C. H., Abd-Alhameed, R. A., Ghani, A., Ali, N. T., Excell, P. S., McEwan, N. J., & Balzano, Q. (2017). Calibration model for detection of potential demodulating behaviour in biological media exposed to RF energy. IET Science, Measurements and Technology, 11(7), 900-906. https://doi.org/10.1049/iet-smt.2017.0105

Potential demodulating ability in biological tissue exposed to radio-frequency (RF) signals intrinsically requires an unsymmetrical diode-like non-linear response in tissue samples. This may be investigated by observing possible generation of the sec... Read More about Calibration model for detection of potential demodulating behaviour in biological media exposed to RF energy.

Direct flux control – sensorless control method of PMSM for all speeds – basics and constraints (2017)
Journal Article
Müller, T., See, C. H., Ghani, A., Bati, A., & Thiemann, P. (2017). Direct flux control – sensorless control method of PMSM for all speeds – basics and constraints. Electronics Letters, 53(16), 1110-1111. https://doi.org/10.1049/el.2017.1772

The limitations of sensorless control of permanent magnet synchronous machines (PMSMs) are discussed and a viable solution is proposed. The main concept of sensorless control of drives relies on additional information given by the machine during its... Read More about Direct flux control – sensorless control method of PMSM for all speeds – basics and constraints.

Link Budget Maximization for a Mobile-Band Subsurface Wireless Sensor in Challenging Water Utility Environments (2017)
Journal Article
See, C. H., Abd-Alhameed, R. A., Atojoko, A. A., McEwan, N. J., & Excell, P. S. (2018). Link Budget Maximization for a Mobile-Band Subsurface Wireless Sensor in Challenging Water Utility Environments. IEEE Transactions on Industrial Electronics, 65(1), 616-625. https://doi.org/10.1109/tie.2017.2719602

A subsurface chamber transceiver system and associated propagation channel link budget considerations for an underground wireless sensor system (UWSS) are presented: the application was a sewerage system for a water utility company. The UWSS operates... Read More about Link Budget Maximization for a Mobile-Band Subsurface Wireless Sensor in Challenging Water Utility Environments.

Miniaturized Balanced Antenna with Integrated Balun for Practical LTE Applications (2017)
Journal Article
Elfergani, I. T. E., Rodriguez, J., Abdussalam, F. M., See, C. H., & Abd-Alhameed, R. A. (2017). Miniaturized Balanced Antenna with Integrated Balun for Practical LTE Applications. Radioengineering, 26(2), 444-452. https://doi.org/10.13164/re.2017.0444

A design of dual-band balanced antenna structure operating in the 700 and 2600MHz LTE bands is studied and investigated. The overall dimensions of the radiator are 50 × 18 × 7 mm3 allowing it to be easily concealed within mobile handsets. A broad-ban... Read More about Miniaturized Balanced Antenna with Integrated Balun for Practical LTE Applications.

An Active Microwave Sensor for Near Field Imaging (2017)
Journal Article
Mirza, A. F., See, C. H., Danjuma, I. M., Asif, R., Abd-Alhameed, R. A., Noras, J. M., …Excell, P. S. (2017). An Active Microwave Sensor for Near Field Imaging. IEEE Sensors Journal, 17(9), 2749-2757. https://doi.org/10.1109/jsen.2017.2673961

Near field imaging using microwaves in medical applications is of great current interest for its capability and accuracy in identifying features of interest, in comparison with other known screening tools. This paper documents microwave imaging exper... Read More about An Active Microwave Sensor for Near Field Imaging.

Mathematical Model for Calibration of Potential Detection of Nonlinear Responses in Biological Media Exposed to RF Energy (2017)
Journal Article
See, C. H., Abd-Alhameed, R. A., Mirza, A. F., McEwan, N. J., Excell, P. S., & Balzano, Q. (2017). Mathematical Model for Calibration of Potential Detection of Nonlinear Responses in Biological Media Exposed to RF Energy. The Applied Computational Electromagnetics Society Journal, 32(1), 1-7

An efficient way to test for potential unsymmetrical nonlinear responses in biological tissue samples exposed to a microwave signal is to observe the second harmonic in a cavity resonant at the two frequencies, with collocated antinodes. Such a respo... Read More about Mathematical Model for Calibration of Potential Detection of Nonlinear Responses in Biological Media Exposed to RF Energy.

Conical beam monopole antenna design for Chinese area positioning system (2016)
Journal Article
Pang, F., Ai, G., Yin, J., Ma, Y., Hu, C., Cui, J., Ma, L., See, C. H., & Abd-Alhameed, R. A. (2016). Conical beam monopole antenna design for Chinese area positioning system. Progress in Electromagnetics Research C: PIER C, 68, 193-200. https://doi.org/10.2528/pierc16083005

This article describes the operational principle of the satellite-based Chinese Area Positioning System (CAPS) and proposes a monopole antenna for a large anchored buoy platform in harsh marine environment. The proposed antenna is highly omnidirectio... Read More about Conical beam monopole antenna design for Chinese area positioning system.

A compact and broadband balun design for LTE applications (2016)
Journal Article
Elfergani, I. T. E., Hussaini, A. S., Rodriguez, J., Ali, A. H., See, C. H., & Abd-Alhameed, R. A. (2016). A compact and broadband balun design for LTE applications. Progress in electromagnetics research B: PIER B, 67, 85-95. https://doi.org/10.2528/pierc16071805

In this paper, a compact wideband planar balun is studied and investigated. The proposed balun comprises a broadband Wilkinson divider followed by non-coupled lines to attain wideband 180° phase shift. Due to the inherent broadband characteristics of... Read More about A compact and broadband balun design for LTE applications.

A novel method for rapid inspection of sewer networks: combining acoustic and optical means (2015)
Journal Article
Plihal, H., Kretschmer, F., Ali, M. T. B., See, C. H., Romanova, A., Horoshenkov, K. V., & Ertl, T. (2016). A novel method for rapid inspection of sewer networks: combining acoustic and optical means. Urban Water Journal, 13(1), 3-14. https://doi.org/10.1080/1573062x.2015.1076857

Operation and maintenance of the public sewer system represent key tasks for an operator. Condition assessment is usually conducted by conventional closed circuit television (CCTV) inspection. However, alternative tools such as manhole-zoom cameras (... Read More about A novel method for rapid inspection of sewer networks: combining acoustic and optical means.

Compact and closely spaced tunable printed F-slot multiple-input–multiple-output antenna system for portable wireless applications with efficient diversity (2014)
Journal Article
Elfergani, I. T., Hussaini, A. S., Rodriguez, J., Abd-Alhameed, R. A., See, C. H., Jan, N., Zhu, S., & McEwan, N. J. (2014). Compact and closely spaced tunable printed F-slot multiple-input–multiple-output antenna system for portable wireless applications with efficient diversity. IET Science, Measurements and Technology, 8(6), 359-369. https://doi.org/10.1049/iet-smt.2013.0276

In this work, miniaturised tunable two-antenna multiple-input–multiple-output (MIMO) systems composed of printed F-slot shaped are developed to operate in the global positioning system (GPS), personal communication system (PCS), distributed control s... Read More about Compact and closely spaced tunable printed F-slot multiple-input–multiple-output antenna system for portable wireless applications with efficient diversity.

Printed monopole antenna with tunable band-notched characteristic for use in mobile and ultra-wide band applications: A Tunable Band-Notched Monopole Antenna (2014)
Journal Article
Elfergani, I. T. E., Hussaini, A. S., See, C. H., Abd-Alhameed, R. A., McEwan, N. J., Zhu, S., Rodriguez, J., & Clarke, R. W. (2015). Printed monopole antenna with tunable band-notched characteristic for use in mobile and ultra-wide band applications: A Tunable Band-Notched Monopole Antenna. International Journal of RF and Microwave Computer-Aided Engineering, 25(5), 403-412. https://doi.org/10.1002/mmce.20874

A tunable band-notch printed monopole antenna is presented, exhibiting a wide impedance bandwidth from 1.5 to 5.5 GHz with good impedance matching (VSWR 2) and a tunable rejected frequency band from 2.38 to 3.87 GHz. The bandnotching is achieved by... Read More about Printed monopole antenna with tunable band-notched characteristic for use in mobile and ultra-wide band applications: A Tunable Band-Notched Monopole Antenna.

Step forward to map fully parallel energy efficient cortical columns on field programmable gate arrays (2014)
Journal Article
Ghani, A., See, C. H., & Usman Ali, S. M. U. (2014). Step forward to map fully parallel energy efficient cortical columns on field programmable gate arrays. IET Science, Measurements and Technology, 8(6), 432-440. https://doi.org/10.1049/iet-smt.2014.0004

This study presents energy and area-efficient hardware architectures to map fully parallel cortical columns on reconfigurable platform - field programmable gate arrays (FPGAs). An area-efficient architecture is proposed at the system level and benchm... Read More about Step forward to map fully parallel energy efficient cortical columns on field programmable gate arrays.

Wideband tunable PIFA antenna with loaded slot structure for mobile handset and LTE applications (2014)
Journal Article
Elfergani, I., Hussaini, A. S., Rodriguez, J., See, C. H., & Abd-Alhameed, R. (2014). Wideband tunable PIFA antenna with loaded slot structure for mobile handset and LTE applications. Radioengineering, 23(1), 345-355

A compact planar inverted F antenna (PIFA) with a tunable frequency response is presented. Tuning of the resonant frequency is realized by loading a varactor on an embedded slot of the proposed antenna structure without further optimizing other anten... Read More about Wideband tunable PIFA antenna with loaded slot structure for mobile handset and LTE applications.

Ultra-Wideband Dual-Polarized Patch Antenna With Four Capacitively Coupled Feeds (2014)
Journal Article
Zhu, F., Gao, S., Ho, A. T. S., Abd-Alhameed, R. A., See, C. H., Brown, T. W. C., Li, J., Wei, G., & Xu, J. (2014). Ultra-Wideband Dual-Polarized Patch Antenna With Four Capacitively Coupled Feeds. IEEE Transactions on Antennas and Propagation, 62(5), 2440-2449. https://doi.org/10.1109/tap.2014.2308524

A novel dual-polarized patch antenna for ultra-wideband (UWB) applications is presented. The antenna consists of a square patch and four capacitively coupled feeds to enhance the impedance bandwidth. Each feed is formed by a vertical isosceles tr... Read More about Ultra-Wideband Dual-Polarized Patch Antenna With Four Capacitively Coupled Feeds.

Statistical analysis of refractivity gradient and β₀ parameter in the Gulf Region. (2013)
Journal Article
AbouAlmal, A., Abd-Alhameed, R. A., Al-Ansari, K., AlAhmad, H., See, C. H., Jones, S. M. R., & Noras, J. M. (2013). Statistical analysis of refractivity gradient and β₀ parameter in the Gulf Region. IEEE Transactions on Antennas and Propagation, 61(12), 6250-6254. https://doi.org/10.1109/tap.2013.2279999

In this communication, nine years of local radiosonde meteorological data, from 1997 to 2005, have been used to calculate the vertical refractivity gradient, ΔΝ, in the lowest atmospheric layer above the ground surface. The values obtained are used t... Read More about Statistical analysis of refractivity gradient and β₀ parameter in the Gulf Region..

Hybrid computational scheme for antenna-human body interaction. (2013)
Journal Article
Ramli, K., Abd-Alhameed, R., See, C., Excell, P., & Noras, J. (2013). Hybrid computational scheme for antenna-human body interaction. Progress in electromagnetics research B: PIER B, 133, 117-136

A new hybrid method of moments (MoM)/finite-difference time-domain (FDTD), with a sub-gridded finite-difference time-domain (SGFDTD) approach is presented. The method overcomes the drawbacks of homogeneous MoM and FDTD simulations, and so permits acc... Read More about Hybrid computational scheme for antenna-human body interaction..

Improved Grating Monopole antenna with zigzag for DVB-T application (2013)
Journal Article
Zebiri, C., Ney, M., Abd-Alhameed, R. A., Benabdelaziz, F., Lashab, M., & See, C. H. (2013). Improved Grating Monopole antenna with zigzag for DVB-T application. Progress In Electromagnetics Research Letters, 41, 39-49. https://doi.org/10.2528/PIERL13050107

This work presents a novel broadband monopole antenna for digital video broadcasting-terrestrial (DVB-T) application. The proposed antenna consists of a grating zigzag patch and a concave rectangular ground plane. The zigzag patch is used to enable t... Read More about Improved Grating Monopole antenna with zigzag for DVB-T application.