Impedance Enhancement of Textile Grounded Loop Antenna Using High-Impedance Surface (HIS) for Healthcare Applications
In this paper, impedance matching enhancement of a grounded wearable low-profile loop antenna is investigated using a high-impedance surface (HIS) structure. The wearable loop antenna along with the HIS structure is maintained low-profile, making it a suitable candidate for healthcare applications....
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-07-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/20/14/3809 |
| _version_ | 1797563083382587392 |
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| author | Mohammed M. Bait-Suwailam Isidoro I. Labiano Akram Alomainy |
| author_facet | Mohammed M. Bait-Suwailam Isidoro I. Labiano Akram Alomainy |
| author_sort | Mohammed M. Bait-Suwailam |
| collection | DOAJ |
| description | In this paper, impedance matching enhancement of a grounded wearable low-profile loop antenna is investigated using a high-impedance surface (HIS) structure. The wearable loop antenna along with the HIS structure is maintained low-profile, making it a suitable candidate for healthcare applications. The paper starts with investigating, both numerically and experimentally, the effects of several textile parameters on the performance of the wearable loop antenna. The application of impedance enhancement of wearable grounded loop antenna with HIS structure is then demonstrated. Numerical full-wave simulations are presented and validated with measured results. Unlike the grounded wearable loop antenna alone with its degraded performance, the wearable loop antenna with HIS structure showed better matching performance improvement at the 2.45 GHz-band. The computed overall far-field properties of the wearable loop antenna with HIS structure shows good performance, with a maximum gain of 6.19 dBi. The effects of bending the wearable loop antenna structure with and without HIS structure as well as when in close proximity to a modeled human arm are also investigated, where good performance was achieved for the case of the wearable antenna with the HIS structure. |
| first_indexed | 2024-03-10T18:37:33Z |
| format | Article |
| id | doaj.art-77cff9e0a7e94291bfd35a6cc68f58ae |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T18:37:33Z |
| publishDate | 2020-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-77cff9e0a7e94291bfd35a6cc68f58ae2023-11-20T06:08:05ZengMDPI AGSensors1424-82202020-07-012014380910.3390/s20143809Impedance Enhancement of Textile Grounded Loop Antenna Using High-Impedance Surface (HIS) for Healthcare ApplicationsMohammed M. Bait-Suwailam0Isidoro I. Labiano1Akram Alomainy2Department of ECE, Sultan Qaboos University, Muscat 123, OmanDepartment of EECS, Queen Mary University of London, London E1 4NS, UKDepartment of EECS, Queen Mary University of London, London E1 4NS, UKIn this paper, impedance matching enhancement of a grounded wearable low-profile loop antenna is investigated using a high-impedance surface (HIS) structure. The wearable loop antenna along with the HIS structure is maintained low-profile, making it a suitable candidate for healthcare applications. The paper starts with investigating, both numerically and experimentally, the effects of several textile parameters on the performance of the wearable loop antenna. The application of impedance enhancement of wearable grounded loop antenna with HIS structure is then demonstrated. Numerical full-wave simulations are presented and validated with measured results. Unlike the grounded wearable loop antenna alone with its degraded performance, the wearable loop antenna with HIS structure showed better matching performance improvement at the 2.45 GHz-band. The computed overall far-field properties of the wearable loop antenna with HIS structure shows good performance, with a maximum gain of 6.19 dBi. The effects of bending the wearable loop antenna structure with and without HIS structure as well as when in close proximity to a modeled human arm are also investigated, where good performance was achieved for the case of the wearable antenna with the HIS structure.https://www.mdpi.com/1424-8220/20/14/3809high-impedance surfaceloop antennatextile sensorwearable sensor |
| spellingShingle | Mohammed M. Bait-Suwailam Isidoro I. Labiano Akram Alomainy Impedance Enhancement of Textile Grounded Loop Antenna Using High-Impedance Surface (HIS) for Healthcare Applications Sensors high-impedance surface loop antenna textile sensor wearable sensor |
| title | Impedance Enhancement of Textile Grounded Loop Antenna Using High-Impedance Surface (HIS) for Healthcare Applications |
| title_full | Impedance Enhancement of Textile Grounded Loop Antenna Using High-Impedance Surface (HIS) for Healthcare Applications |
| title_fullStr | Impedance Enhancement of Textile Grounded Loop Antenna Using High-Impedance Surface (HIS) for Healthcare Applications |
| title_full_unstemmed | Impedance Enhancement of Textile Grounded Loop Antenna Using High-Impedance Surface (HIS) for Healthcare Applications |
| title_short | Impedance Enhancement of Textile Grounded Loop Antenna Using High-Impedance Surface (HIS) for Healthcare Applications |
| title_sort | impedance enhancement of textile grounded loop antenna using high impedance surface his for healthcare applications |
| topic | high-impedance surface loop antenna textile sensor wearable sensor |
| url | https://www.mdpi.com/1424-8220/20/14/3809 |
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