Ali, M;
Batchelor, JC;
Ullah, I;
Gomes, NJ;
(2022)
Ultra-thin EBG backed flexible antenna for 24 GHz ISM band WBAN.
In:
AMTA 2022 - Proceedings: 2022 Antenna Measurement Techniques Association Symposium.
IEEE: Denver, CO, USA.
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Abstract
An ultra-thin, electromagnetic bandgap (EBG) backed antenna is presented for 24 GHz ISM band wearable applications. The antenna is a slotted bow-tie, with an overall dimension of 0.91λ0 × 0.84 λ0 × 0.01 λ0 , backed by a 5 × 5 element 0.01λ0 thick EBG structure; it is manufactured on a flexible substrate (ϵr = 2.2). The performance of the EBG-backed antenna in terms of reflection coefficient and free-space radiation patterns is investigated in scenarios with and without structural bending. It is shown that the integration of the EBG enhances the antenna's front-lobe gain by 2.6 dB, decreases back-lobe radiation by 12.2 dB, and decreases the specific absorption rate (SAR (1 g)) from > 28 W/kg to <1.93 W/kg, significantly reducing potential harm to the human body. Furthermore, the results show the performance of the EBG-backed antenna is highly insensitive to body proximity, and that its performance is preserved when bent along either axis.
Type: | Proceedings paper |
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Title: | Ultra-thin EBG backed flexible antenna for 24 GHz ISM band WBAN |
Event: | 2022 Antenna Measurement Techniques Association Symposium (AMTA) |
Dates: | 9 Oct 2022 - 14 Oct 2022 |
ISBN-13: | 9781736235140 |
Open access status: | An open access version is available from UCL Discovery |
DOI: | 10.23919/AMTA55213.2022.9954953 |
Publisher version: | https://doi.org/10.23919/AMTA55213.2022.9954953 |
Language: | English |
Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
Keywords: | Slot antenna, EBG, AMC, ultra-thin, 24 GHz ISM, WBAN |
UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
URI: | https://discovery.ucl.ac.uk/id/eprint/10189715 |
1. | United States | 3 |
2. | Russian Federation | 2 |
3. | Egypt | 2 |
4. | United Kingdom | 1 |
5. | Finland | 1 |
6. | South Africa | 1 |
7. | France | 1 |
8. | Poland | 1 |
9. | China | 1 |
10. | Spain | 1 |
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