Conical beam monopole antenna design for Chinese area positioning system
Journal Article
Pang, F., Ai, G., Yin, J., Ma, Y., Hu, C., Cui, J., …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 platfo...
Single-Element and MIMO Circularly Polarized Microstrip Antennas with Negligible Back Radiation for 5G Mid-Band Handsets
Journal Article
Alnahwi, F. M., Al-Yasir, Y. I. A., See, C. H., & Abd-Alhameed, R. A. (2022)
Single-Element and MIMO Circularly Polarized Microstrip Antennas with Negligible Back Radiation for 5G Mid-Band Handsets. Sensors, 22(8), Article 3067. https://doi.org/10.3390/s22083067
In this paper, single-element and MIMO microstrip antenna with two pairs of unequal slits is proposed as a circularly polarized antenna with negligible back radiation for 5G m...
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...
The influence of particle geometry and the intermediate stress ratio on the shear behavior of granular materials
Journal Article
Xie, Y. H., Yang, Z. X., Barreto, D., & Jiang, M. D. (2017)
The influence of particle geometry and the intermediate stress ratio on the shear behavior of granular materials. Granular Matter, 19(2), 34-48. https://doi.org/10.1007/s10035-017-0723-8
The behavior of granular materials is very complex in nature and depends on particle shape, stress path, fabric, density, particle size distribution, amongst others. This pape...
Particle loss and volume change on dissolution: experimental results and analysis of particle size and amount effects
Journal Article
McDougall, J., Kelly, D., & Barreto, D. (2013)
Particle loss and volume change on dissolution: experimental results and analysis of particle size and amount effects. Acta geotechnica, 8(6), 619-627. https://doi.org/10.1007/s11440-013-0212-0
Soil particles may be lost through dissolution, degradation or erosion. Regardless of the process of loss, there follows a change in soil structure both in terms of phase comp...
Fast imaging Microlenses
Journal Article
Binnie, T. D. (1994)
Fast imaging Microlenses. Applied Optics, 33(7), 1170-1175. https://doi.org/10.1364/ao.33.001170
A new type of imaging microlens, primarily for use with solid-state image-capture systems such as a charge coupled device (CCD) or metal oxide semiconductor array sensors, is ...
Tailoring of electromagnetic waves by metasurfaces
Conference Proceeding
Spada, L. L., & Hao, Y. (2017)
Tailoring of electromagnetic waves by metasurfaces. In 2017 11th European Conference on Antennas and Propagation (EUCAP)https://doi.org/10.23919/EuCAP.2017.7928143
In the last few years, non-homogeneous metasurfaces captured huge interest in tailoring electromagnetic waves, ranging from microwave to optical frequencies. Several technolog...
Micromechanical insight into the undrained instability of granular materials: deformation characteristics of geomaterials.
Conference Proceeding
Barreto, D., Prada-Sarmiento, L. F., & Ramos-Cañón, A. M. (2015)
Micromechanical insight into the undrained instability of granular materials: deformation characteristics of geomaterials. In V. A. Rinaldi, M. E. Zeballos, & J. J. Clariá (Eds.), Deformation Characteristics of Geomaterials (655-662). https://doi.org/10.3233/978-1-61499-601-9-655
There is no agreement between experimental researchers whether the point where a granular material responds with a large change of stresses, strains or excess pore water press...
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 compact and broadband balun design for LTE applications
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 ...