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Title: Dual-band 4G eyewear antenna and SAR implications
Authors: Cihangir, Aykut
Panagamuwa, C.J.
Whittow, W.G.
Jacquemod, Gilles
Gianesello, Frederic
Pilard, Romain
Luxey, Cyril
Keywords: Smart eyewear
Coupling element
Matching network
Cellular network
Issue Date: 2017
Publisher: © IEEE
Citation: CIHANGIR, A. ... et al, 2017. Dual-band 4G eyewear antenna and SAR implications. IEEE Transactions on Antennas and Propagation, 65 (4), pp. 2085-2089.
Abstract: This paper presents low-cost and easy-to-manufacture dual-band antenna solution to achieve cellular 4G (LTE-Advanced) coverage in smart eyewear devices. Coupling element type antenna has been evaluated with appropriate matching networks to cover the target bands of 700-960MHz and 1.7-2.7GHz. To emulate a realistic device, an ABS plastic dielectric frame has been designed and manufactured using 3D printing technology. Simulations for the antenna are carried out in three typical use-case scenarios which are "with user's head", "with head and hand" and "free space". The simulations are validated through S-parameters, efficiency and radiation pattern measurements using fabricated frame and antenna prototype in the presence of head and hand phantoms. The SAR behavior of the antenna designs is also investigated through simulations and measurements. It is demonstrated that SAR values are found to be above the limitations which might be problematic in practical use if the transmit power of the eyewear is not reduced.
Description: (c) 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.
Version: Accepted for publication
DOI: 10.1109/TAP.2017.2670562
URI: https://dspace.lboro.ac.uk/2134/24520
Publisher Link: http://dx.doi.org/10.1109/TAP.2017.2670562
ISSN: 0018-926X
Appears in Collections:Published Articles (Mechanical, Electrical and Manufacturing Engineering)

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