40 results

Silicon-Based 0.450-0.475 THz Series-Fed Double Dielectric Resonator On-Chip Antenna Array Based on Metamaterial Properties for Integrated-Circuits

Conference Proceeding
Alibakhshikenari, M., Virdee, B. S., See, C., Abd-Alhameed, R., Falcone, F., & Limiti, E. (2019)
Silicon-Based 0.450-0.475 THz Series-Fed Double Dielectric Resonator On-Chip Antenna Array Based on Metamaterial Properties for Integrated-Circuits. In 2019 Thirteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials)https://doi.org/10.1109/MetaMaterials.2019.8900949
The antenna array designed to operate over 0.450-0.475 Terahertz comprises two dielectric resonators (DRs) that are stacked vertically on top of each other and placed on the s...

New Approach to Suppress Mutual Coupling Between Longitudinal-Slotted Arrays Based on SIW Antenna Loaded with Metal-Fences Working on VHF/UHF Frequency-Bands: Study, Investigation, and Principle

Conference Proceeding
Alibakhshikenari, M., Virdee, B. S., Khalily, M., See, C. H., Abd-Alhameed, R., Falcone, F., & Limiti, E. (2018)
New Approach to Suppress Mutual Coupling Between Longitudinal-Slotted Arrays Based on SIW Antenna Loaded with Metal-Fences Working on VHF/UHF Frequency-Bands: Study, Investigation, and Principle. https://doi.org/10.23919/APMC.2018.8617580
In this work it is demonstrated that substrate integrated waveguide longitudinal slotted array antenna (SIWLSAA) which is loaded with metal fences exhibits highisolation acros...

A New Waveguide Slot Array Antenna with High Isolation and High Antenna Bandwidth Operation on Ku- and K-bands for Radar and MIMO Systems

Conference Proceeding
Alibakhshikenari, M., Virdee, B. S., See, C. H., Abd-Alhameed, R., Falcone, F., & Limiti, E. (2018)
A New Waveguide Slot Array Antenna with High Isolation and High Antenna Bandwidth Operation on Ku- and K-bands for Radar and MIMO Systems. https://doi.org/10.23919/EuRAD.2018.8546589
In this paper a novel technique is proposed to reduce the mutual coupling between the radiating elements of a waveguide slot array antenna. This is achieved by inserting slots...

Study on Antenna Mutual Coupling Suppression Using Integrated Metasurface Isolator for SAR and MIMO Applications

Conference Proceeding
Alibakhshikenari, M., Virdee, B. S., See, C. H., Abd-Alhameed, R., Falcone, F., Andujar, A., …Limiti, E. (2018)
Study on Antenna Mutual Coupling Suppression Using Integrated Metasurface Isolator for SAR and MIMO Applications. https://doi.org/10.23919/EuMC.2018.8541373
A metasurface based decoupling structure that is composed of a square-wave slot pattern with exaggerated corners that is implemented on a rectangular microstrip provides high-...

Mutual-Coupling Reduction in Metamaterial Substrate Integrated Waveguide Slotted Antenna Arrays Using Metal Fence Isolators for SAR and MIMO Applications

Conference Proceeding
Alibakhshikenari, M., Virdee, B. S., See, C. H., Abd-Alhameed, R., Falcone, F., & Limiti, E. (2018)
Mutual-Coupling Reduction in Metamaterial Substrate Integrated Waveguide Slotted Antenna Arrays Using Metal Fence Isolators for SAR and MIMO Applications. https://doi.org/10.1109/metamaterials.2018.8534166
A new type of mutual coupling reduction technique is applied to metamaterial substrate integrated waveguide (SIW) slotted antenna array. The circular shaped reference SIW ante...

New Approach to Suppress Mutual Coupling Between Longitudinal-Slotted Arrays Based on SIW Antenna Loaded with Metal-Fences Working on VHF/UHF Frequency-Bands: Study, Investigation, and Principle

Conference Proceeding
Alibakhshikenari, M., Virdee, B. S., See, C. H., Abd-Alhameed, R., Falcone, F., & Limiti, E. (2018)
New Approach to Suppress Mutual Coupling Between Longitudinal-Slotted Arrays Based on SIW Antenna Loaded with Metal-Fences Working on VHF/UHF Frequency-Bands: Study, Investigation, and Principle
In this work it is demonstrated that substrate integrated waveguide longitudinal slotted array antenna (SIWLSAA) which is loaded with metal fences exhibits highisolation acros...

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...

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 ...