Browsing by Author "Nikolaou, S."
Now showing items 1-8 of 8
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Conference Object
Arbitrary length zero-phase substrate integrated coaxial lines using NRI-TL metamaterials
Quddious, A.; Nikolaou, S.; Antoniades, Marcos A. (Institute of Electrical and Electronics Engineers Inc., 2017)Arbitrary-length zero-degree phase-shifting lines are presented at X-band that are based on negative-refractive-index transmission-line (NRI-TL) metamaterials implemented in substrate integrated coaxial line (SICL) technology. ...
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Conference Object
Bidirectional slot antenna with LP and CP radiation capabilities intended for foliage obstacle detection
Nikolaou, S.; Heracleous, C.; Panayiotou, Christos G.; Milis, M. (2013)
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Conference Object
Conformai wearable monopole antenna backed by a compact EBG structure for body area networks
Antoniades, Marcos A.; Abbasi, M. A. B.; Nikolic, M.; Vryonides, P.; Nikolaou, S. (Institute of Electrical and Electronics Engineers Inc., 2017)A compact planar monopole antenna backed by an electromagnetic bandgap (EBG) structure is presented. The antenna is conformal to the human body and is intended for wearable applications in wireless body area networks. It ...
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Conference Object
Foliage obstacle detection exploiting scattering and depolarization of 2.4 GHz waves used for communication links
Nikolaou, S.; Eracleous, C.; Panayiotou, Christos G.; Milis, M. (2012)
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Conference Object
A high gain EBG backed monopole for MBAN off-body communication
Abbasi, M. A. B.; Nikolaou, S.; Antoniades, Marcos A. (Institute of Electrical and Electronics Engineers Inc., 2016)This paper discusses the use of an EBG array structure as a director for efficient radiation of a printed monopole antenna. A planar monopole printed on a partially grounded substrate is loaded with a 3×2 EBG structure, ...
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Article
Reconfigurable Bandwidth Bandpass Filter with Enhanced Out-of-Band Rejection Using π-Section-Loaded Ring Resonator
Arain, S.; Vryonides, P.; Abbasi, M. A. B.; Quddious, A.; Antoniades, Marcos A.; Nikolaou, S. (2018)A novel ring resonator bandpass filter with reconfigurable bandwidth with central frequency at 2.4 GHz is demonstrated. Theoretical analysis for computing the resonant frequencies is shown, and the design approach of ...
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Article
Simultaneous Wireless Information and Power Transfer in modern communication systems
Krikidis, Ioannis A.; Timotheou, S.; Nikolaou, S.; Zheng, G.; Ng, D. W. K.; Schober, R. (2014)
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Article
Wideband BPF using quadruple-mode ring resonator loaded with short-circuited stubs and Γ-shaped band-stop sections
Arain, S.; Vryonides, P.; Abbasi, M. A. B.; Quddious, A.; Antoniades, Marcos A.; Nikolaou, S. (2017)In this letter, a compact, wideband bandpass filter with 31% 3-dB bandwidth, with very sharp roll-off characteristics, low insertion loss of 0.45 dB, high return loss greater than 25 dB, and improved out-of-band performance, ...