Compact EBG-Backed Planar Monopole for BAN Wearable Applications
Date
2017Source
IEEE Transactions on Antennas and PropagationVolume
65Issue
2Pages
453-463Google Scholar check
Keyword(s):
Metadata
Show full item recordAbstract
This paper presents a planar monopole backed with a 2 × 1 array of electromagnetic bandgap (EBG) structures. The reflection phase of a single EBG unit cell has been studied and exploited toward efficient radiation of a planar monopole antenna, intended for wearable applications. The shape of the EBG unit cell and the gap between the ground and the EBG layer are adjusted so that the antenna operates at 2.45 GHz. The proposed antenna retains its impedance matching when placed directly upon a living human subject with an impedance bandwidth of 5%, while it exhibits a measured gain of 6.88 dBi. A novel equivalent array model is presented to qualitatively explain the reported radiation mechanism of the EBG-backed monopole. The proposed antenna is fabricated on a 68 × 38 × 1.57 mm3 board of semiflexible RT/duroid 5880 substrate. Detailed analysis and measurements are presented for various cases when the antenna is subjected to structural deformation and human body loading, and in all cases, the EBG-backed monopole antenna retains its high performance. The reported efficient and robust radiation performance with very low specific absorption rate, compact size, and high gain make the proposed antenna a superior candidate for most wearable applications used for off-body communication. © 2016 IEEE.
Collections
Cite as
Related items
Showing items related by title, author, creator and subject.
-
Conference Object
Antenna selection in the full-duplex multi-antenna relay channel
Suraweera, H. A.; Krikidis, Ioannis A.; Yuen, C. (2013)
-
Conference Object
Design of PCB leaky-wave antennas for Wide angle beam steering
Neophytou, Kyriakos; Iezekiel, Stavros; Steeg, Matthias; Stöhr, Andreas (2018)A PCB based leaky-wave antenna (LWA) design for wide angle beam steering is presented. This design employs longitudinal slots inserted into a substrate-integrated waveguide for operation in the mm-wave V-band. It is optimized ...
-
Article
Retrodirective Large Antenna Energy Beamforming in Backscatter Multi-User Networks
Krikidis, Ioannis (2018)In this letter, we study a new technique for energy beamforming (EB) in multi-user networks, which combines large antenna retrodirectivity at the transmitter side with signal backscattering at the energy receivers. The ...