A Compact Sub-GHz Wide Tunable Antenna Design for IoT Applications
This work presents a compact meandered loop slot-line 5G antenna for Internet of Things (IoT) applications. Recently, sub-gigahertz (sub-GHz) IoT technology is widely spreading. It enables long-range communications with low power consumption. The proposed antenna structure is optimized to operate at...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-03-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/11/7/1074 |
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| author | Rifaqat Hussain Saad I. Alhuwaimel Abdullah M. Algarni Khaled Aljaloud Niamat Hussain |
| author_facet | Rifaqat Hussain Saad I. Alhuwaimel Abdullah M. Algarni Khaled Aljaloud Niamat Hussain |
| author_sort | Rifaqat Hussain |
| collection | DOAJ |
| description | This work presents a compact meandered loop slot-line 5G antenna for Internet of Things (IoT) applications. Recently, sub-gigahertz (sub-GHz) IoT technology is widely spreading. It enables long-range communications with low power consumption. The proposed antenna structure is optimized to operate at sub-GHz bands without any additional complex biasing circuitry or antenna structure. A miniaturized design was achieved by a meandered structured loop slot-line that is loaded reactively with a varactor diode. Wideband frequency reconfigurability (FR) was achieved by the use of the varactor diode. The proposed antenna resonates over the frequency band of 758–1034 MHz with a minimum bandwidth of 17 MHz over the entire frequency band. The RO4350 substrate with dimensions of 0.18<i>λ<sub>g</sub></i> × 0.13<i>λ<sub>g</sub></i> mm<sup>2</sup> is used to design the proposed antenna design. The efficiency and gain values varied from 54–67% and 0.86–1.8 dBi. Compact planar structure, narrow-band operation (suitable for NB-IoT) and simple biasing circuitry, which allows for sub-GHz operation, are unique and attractive features of the design. |
| first_indexed | 2024-03-09T11:57:13Z |
| format | Article |
| id | doaj.art-139d13bc68ee4a6d8037bb2cc320884d |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-09T11:57:13Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-139d13bc68ee4a6d8037bb2cc320884d2023-11-30T23:07:01ZengMDPI AGElectronics2079-92922022-03-01117107410.3390/electronics11071074A Compact Sub-GHz Wide Tunable Antenna Design for IoT ApplicationsRifaqat Hussain0Saad I. Alhuwaimel1Abdullah M. Algarni2Khaled Aljaloud3Niamat Hussain4Electrical Engineering Department, King Fahd University for Petroleum and Minerals (KFUPM), Dhahran 31261, Saudi ArabiaKing Abdulaziz City for Science and Technology, Riyadh 12354, Saudi ArabiaElectrical Engineering Department, King Fahd University for Petroleum and Minerals (KFUPM), Dhahran 31261, Saudi ArabiaCollege of Engineering, Muzahimiyah Branch, King Saud University, P.O. Box 2454, Riyadh 11451, Saudi ArabiaDepartment of Smart Device Engineering, School of Intelligent Mechatronics Engineering, Sejong University, Seoul 05006, KoreaThis work presents a compact meandered loop slot-line 5G antenna for Internet of Things (IoT) applications. Recently, sub-gigahertz (sub-GHz) IoT technology is widely spreading. It enables long-range communications with low power consumption. The proposed antenna structure is optimized to operate at sub-GHz bands without any additional complex biasing circuitry or antenna structure. A miniaturized design was achieved by a meandered structured loop slot-line that is loaded reactively with a varactor diode. Wideband frequency reconfigurability (FR) was achieved by the use of the varactor diode. The proposed antenna resonates over the frequency band of 758–1034 MHz with a minimum bandwidth of 17 MHz over the entire frequency band. The RO4350 substrate with dimensions of 0.18<i>λ<sub>g</sub></i> × 0.13<i>λ<sub>g</sub></i> mm<sup>2</sup> is used to design the proposed antenna design. The efficiency and gain values varied from 54–67% and 0.86–1.8 dBi. Compact planar structure, narrow-band operation (suitable for NB-IoT) and simple biasing circuitry, which allows for sub-GHz operation, are unique and attractive features of the design.https://www.mdpi.com/2079-9292/11/7/1074sub-GHzmeandered loopfrequency agileIoT antenna5G antenna |
| spellingShingle | Rifaqat Hussain Saad I. Alhuwaimel Abdullah M. Algarni Khaled Aljaloud Niamat Hussain A Compact Sub-GHz Wide Tunable Antenna Design for IoT Applications Electronics sub-GHz meandered loop frequency agile IoT antenna 5G antenna |
| title | A Compact Sub-GHz Wide Tunable Antenna Design for IoT Applications |
| title_full | A Compact Sub-GHz Wide Tunable Antenna Design for IoT Applications |
| title_fullStr | A Compact Sub-GHz Wide Tunable Antenna Design for IoT Applications |
| title_full_unstemmed | A Compact Sub-GHz Wide Tunable Antenna Design for IoT Applications |
| title_short | A Compact Sub-GHz Wide Tunable Antenna Design for IoT Applications |
| title_sort | compact sub ghz wide tunable antenna design for iot applications |
| topic | sub-GHz meandered loop frequency agile IoT antenna 5G antenna |
| url | https://www.mdpi.com/2079-9292/11/7/1074 |
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