Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Yee Loon Sum"'
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 16, Iss 10, Pp 627-638 (2022)
Abstract In an urban built city environment, the performance of electromagnetic (EM) wave propagation through building materials poses a new set of challenges to radio frequency engineers in the prediction of the 5G‐network coverage planning. We pr
Externí odkaz:
https://doaj.org/article/35c1c38be6844ad2b6b4d61e33ccbd01
Publikováno v:
Sensors, Vol 23, Iss 20, p 8624 (2023)
Recent advances in embedded antenna and sensor technologies for 5G communications have galvanized a response toward the investigation of their electromagnetic performance for urban contexts and civil engineering applications. This article quantitativ
Externí odkaz:
https://doaj.org/article/aee9d417b24f4920999cc14605204e20
Publikováno v:
The Journal of Engineering (2017)
In many planar antenna array designs, impedance transformers are required to interconnect the elements to ensure that their impedances are matched. However, impedance transformers take up space and reduce area utilisation. If each element is electric
Externí odkaz:
https://doaj.org/article/62540ee182e145f29ff47c538e6ee7ae
Efforts are currently underway to improve the performance of small electric antennas and resonator-based antennas embedded in the civil infrastructure. One of the main limitations of these small antennas is that they have narrow bandwidths which limi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5033a6cc0ba37b8065a8affbb646d7db
https://hdl.handle.net/10356/162476
https://hdl.handle.net/10356/162476
Publikováno v:
The Journal of Engineering (2017)
In many planar antenna array designs, impedance transformers are required to interconnect the elements to ensure that their impedances are matched. However, impedance transformers take up space and reduce area utilisation. If each element is electric
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0896b69c161dd8a707468f6e6f62413
https://doi.org/10.1049/joe.2017.0015
https://doi.org/10.1049/joe.2017.0015
Autor:
Yee Loon Sum
Globally, governments are building smarter, greener and more sustainable buildings with the help of technological innovations. Deploying embedded WSN in buildings is one of the promising technologies that enables such a vision. However, such sensors
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3a76cd79c279ebd886c9be09004f161
https://doi.org/10.32657/10220/48427
https://doi.org/10.32657/10220/48427
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
Scientific Reports
Scientific Reports
Small resonator antennas, such as metaresonator antennas, have narrow bandwidths, which limits their effective range of frequencies. When they are used as embedded antennas in building materials, their performance is affected more than other types of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ee12d8ae86d18e1dfa5f13d1cc71c3f
https://doi.org/10.1038/s41598-017-15289-6
https://doi.org/10.1038/s41598-017-15289-6
Autor:
Szu-Cheng Chien, Boon-Hee Soong, S. H. Chew, Yiu Wing Edwin Chan, Yee Loon Sum, King Jet Tseng, N. H. Ardiyanto
Publikováno v:
2015 IEEE International Telecommunications Energy Conference (INTELEC).
With the recent focus on DC power distribution in the built environment due to ease of integration of DC energy sources such as solar photovoltaic and battery energy storage, the Extra Low Voltage DC (ELVDC) power distribution system suitable for hig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::efbfe2d9481f5e7d837ca2307d9ddda6
https://doi.org/10.1109/intlec.2015.7572300
https://doi.org/10.1109/intlec.2015.7572300
Publikováno v:
2015 IEEE International Telecommunications Energy Conference (INTELEC).
Typical low cost light sensors used in modern day buildings have an error of up to 40%. To achieve intelligent lighting control for intelligent energy management, illuminance sensor nodes need to have less than 5% error. In order to realize such sens
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a74d6161cebf867ecd955b890cf1c6ea
https://doi.org/10.1109/intlec.2015.7572465
https://doi.org/10.1109/intlec.2015.7572465