Journal
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
Volume 57, Issue 4, Pages 875-884Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAP.2009.2014588
Keywords
Body-centric wireless network; body-worn antenna; radio propagation; transient domain; ultrawideband (UWB)
Funding
- Engineering and Physical Sciences Research Council [EP/E030270/1] Funding Source: researchfish
- EPSRC [EP/E030270/1] Funding Source: UKRI
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This paper presents transient characterization of ultrawideband (UWB) body-worn antennas and on-body radio propagation channels for body-centric wireless communications. A novel miniaturized CPW-fed tapered slot antenna is proposed and used for transient measurements of UWB radio channels for body area network (BAN) and personal area network (PAN) scenarios. Unlike conventional UWB CPW-fed antennas, the proposed antenna employs two diverging tapered slots to provide smooth and stable impedance matching. Fidelity analysis is applied to evaluate the time-domain bbehaviorof body-worn antennas and it is found that average fidelity obtained is 88% and 86% for the conventional coplanar waveguide fed antenna and the tapered slot antenna, respectively. However, the tapered slot antenna shows a significant size reduction and hence is suited for body-centric wireless communications.
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