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39 results

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...

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...

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 ...

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...

Broadband dual planar inverted F-antenna for wireless local area networks/worldwide interoperability for microwave access and lower-band ultra wideband wireless applications

Journal Article
See, C. H., Abd-Alhameed, R., Zhou, D., Hraga, H., & Excell, P. (2011)
Broadband dual planar inverted F-antenna for wireless local area networks/worldwide interoperability for microwave access and lower-band ultra wideband wireless applications. IET microwaves, antennas & propagation, 5(6), 644-650. https://doi.org/10.1049/iet-map.2010.0135
An extension of the planar inverted F-antenna (PIFA) concept is proposed, combining two such antennas (one of them fed parasitically) to extend the usable bandwidth to cover t...

Wideband Printed MIMO/Diversity Monopole Antenna for WiFi/WiMAX Applications

Journal Article
See, C. H., Abd-Alhameed, R. A., Abidin, Z. Z., McEwan, N. J., & Excell, P. S. (2012)
Wideband Printed MIMO/Diversity Monopole Antenna for WiFi/WiMAX Applications. IEEE Transactions on Antennas and Propagation, 60(4), 2028-2035. https://doi.org/10.1109/tap.2012.2186247
A novel printed diversity monopole antenna is presented for WiFi/WiMAX applications. The antenna comprises two crescent shaped radiators placed symmetrically with respect to a...

A Low Power Wireless Sensor Network for Gully Pot Monitoring in Urban Catchments

Journal Article
See, C. H., Horoshenkov, K., abd-alhmeed, R. A., Hu, Y., & Tait, S. (2012)
A Low Power Wireless Sensor Network for Gully Pot Monitoring in Urban Catchments. IEEE Sensors Journal, 12(5), 1545-1553. https://doi.org/10.1109/jsen.2011.2174354
Sewer and gully blockages are the main cause of residential sewer flooding in the U.K. A low-cost and power efficient wireless sensor mesh networking communication system has ...

A frequency tunable PIFA design for handset applications

Journal Article
Hwang See, C., Elfergani, I. E., Abd-Alhameed, R., Bin-Melha, M., Zhou, D., Child, M., & Excell, P. S. (2012)
A frequency tunable PIFA design for handset applications. Lecture Notes in Computer Science, 77, 688-693. https://doi.org/10.1007/978-3-642-35155-6_57
A frequency tunable planar inverted F antenna (PIFA) is presented for use in the following bands: DCS, PCS, and UMTS. Initially, the tuning was achieved by placing a lumped ca...

A Compact Design of Tunable Band-Notched Ultra-Wide Band Antenna

Journal Article
See, C. H., Elfergani, I. E. E., Abd-Alhameed, R. A., Jones, S., & Excell, P. S. (2012)
A Compact Design of Tunable Band-Notched Ultra-Wide Band Antenna. Microwave and Optical Technology Letters, 54(7), 1642-1644. https://doi.org/10.1002/mop.26907
In this letter, a compact ultrawideband planar inverted F‐L antenna with a tunable band‐notched response is presented. Tuning of the rejected frequency bands is realized by lo...

Planar monopole antennas for new generation mobile and lower band ultra-wide band applications

Journal Article
See, C., Abd-Alhameed, R., Jones, S., Zhou, D., McEwan, N., Excell, P., …Noras, J. (2012)
Planar monopole antennas for new generation mobile and lower band ultra-wide band applications. IET microwaves, antennas & propagation, 6(11), 1207-1214. https://doi.org/10.1049/iet-map.2012.0086
This study presents two multiband planar printed monopole antennas with an optimised size of 57 × 37.5 × 0.8 mm³ for mobile/wireless and low-band ultra-wide band (UWB) ap...