Browsing by Author "Ullah, Naveed"
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16-elements helical antenna system integration with a solar cell powered IoT collector
Ullah, Naveed; Tekin, Ahmet (IEEE, 2019)An 868MHz-915MHz 16-elements helical wire antenna array design with a solar-cell integration is presented. Each element is designed to be omni-directional with the corresponding tuning stubs and ground substrate. This is ... -
Comments on “A set square design metamaterial absorber for X band applications”
Ur Rahman, S.; Ullah, H.; Cao, Q.; Kabir Khan, M.; Ullah, Naveed (Taylor & Francis, 2021-05-24)In a recently published paper, Chetan Barde et al. [Barde C, Choubey A, Sinha R. A set square design metamaterial absorber for X-band applications. J Electromagn Waves Appl. 2019:1–14.] have proposed a wideband metamaterial ... -
High gain, low radar cross-section, and left hand circularly polarized antenna array based on metamaterial inspired elements
Rahman, S. U.; Cao, Q. S.; Khan, Z.; Deng, H.; Ullah, Naveed (Wiley, 2021-05)In this research work, a wideband metamaterial-inspired circularly polarized antenna array is designed. The designed antenna array has a low radar cross-section (RCS) but high gain. The basic element of the planar array ... -
Omni-directional wideband antenna array with solar cells
Ullah, Naveed; Tekin, Ahmet (SciELO - Scientific Electronic Library Online, 2021-03)Distributed sensor networks are becoming more and more widespread due to their substantial benefits to our daily lives. These sensors, in most cases, are distributed in nature and even may require mobility. This, in turn, ...
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