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101 results

Compact wideband printed MIMO/diversity monopole antenna for GSM/UMTS and LTE applications

Book Chapter
See, C. H., Saleh, A., Alabdullah, A. A., Hameed, K., Abd-Alhameed, R. A., Jones, S., & Majeed, A. H. (2018)
Compact wideband printed MIMO/diversity monopole antenna for GSM/UMTS and LTE applications. In I. Elfergani, A. Hussaini, J. Rodriguez, & R. Abd-Alhameed (Eds.), Antenna Fundamentals for Legacy Mobile Applications and Beyond, 191-209. Springer Verlag. https://doi.org/10.1007/978-3-319-63967-3_10
Over the last decade, significant research effort has been devoted to enhance the isolation between multiple-input-multiple-output (MIMO) antenna elements. This has led to off...

Dual-band planar inverted F-L antenna structure for bluetooth and ZigBee applications

Book Chapter
See, C. H., Oguntala, G. A., Shuaieb, W., Noras, J. M., & Excell, P. S. (2018)
Dual-band planar inverted F-L antenna structure for bluetooth and ZigBee applications. In I. Elfergani, A. Hussaini, J. Rodriguez, & R. Abd-Alhameed (Eds.), Antenna Fundamentals for Legacy Mobile Applications and Beyond, 39-52. Springer Verlag. https://doi.org/10.1007/978-3-319-63967-3_2
This chapter will present and analyse a compact and dual frequency inverted L-F antennas for the operating frequency bands to meet the requirement for IEEE 802.11a/b/g, Blueto...

Calibration model for detection of potential demodulating behaviour in biological media exposed to RF energy

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 sa...

Current technologies and location based services

Conference Proceeding
Ahmad, I., Asif, R., Abd-Alhameed, R., Alhassan, H., Elmegri, F., Noras, J., …Jones, S. (2017)
Current technologies and location based services. https://doi.org/10.1109/itecha.2017.8101958
This paper examines the benefits and drawbacks of these services, reviewing differences in infrastructure, power requirements, sensing devices, and other factors. Technologies...

Direct flux control – sensorless control method of PMSM for all speeds – basics and constraints

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 ...

Link Budget Maximization for a Mobile-Band Subsurface Wireless Sensor in Challenging Water Utility Environments

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 appli...

Miniaturized Balanced Antenna with Integrated Balun for Practical LTE Applications

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...

An Active Microwave Sensor for Near Field Imaging

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 wit...

Structural Health Monitoring Using Textile Reinforcement Structures with Integrated Optical Fiber Sensors

Journal Article
Bremer, K., Weigand, F., Zheng, Y., Alwis, L. S., Helbig, R., & Roth, B. (2017)
Structural Health Monitoring Using Textile Reinforcement Structures with Integrated Optical Fiber Sensors. Sensors, 17(2), 345. https://doi.org/10.3390/s17020345
Optical fiber-based sensors " embedded " in functionalized carbon structures (FCSs) and textile net structures (TNSs) based on alkaline-resistant glass are introduced for the ...

Mathematical Model for Calibration of Potential Detection of Nonlinear Responses in Biological Media Exposed to RF Energy

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 cavi...