Browsing by Subject "Antennas"
Now showing items 21-23 of 23
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Conference Object
Recovering from the selective forwarding attack in WSNs - Enhancing the recovery benefits of blacklisting and rerouting using directional antennas
(Institute of Electrical and Electronics Engineers Inc., 2014)Wireless sensor networks (WSNs) face a number of security challenges that can compromise their operation. A typical security attack that can be launched by an adversary, in order to affect the network's communication, is ...
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Conference Object
Selected antenna applications of Negative-Refractive-Index Transmission-Line (NRI-TL) metamaterials
(2006)Metamaterials (MM) that exhibit a simultaneously negative electric permittivity E and magnetic permeability μ, and thus a negative refractive index (NRI), have recently attracted considerable attention in the electromagnetics ...
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Conference Object
A zero beam-squinting leaky-wave antenna using NRI-TL metamaterials
(Institute of Electrical and Electronics Engineers Inc., 2015)A planar zero beam-squinting leaky-wave antenna is proposed at 5 GHz, consisting of a periodic arrangement of negative-refractive-index transmission-line (NRI-TL) metamaterial unit cells. The antenna is centre-fed through ...