Compact single‐varactor diode frequency‐reconfigurable microstrip patch antenna
Abstract A single‐varactor frequency‐reconfigurable microstrip patch antenna is presented. The antenna comprises a symmetrical arrangement of four metallised patches coupled and interconnected via slots and metallic bars, respectively. The antenna structure is excited through a single feed probe con...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-07-01
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| Series: | IET Microwaves, Antennas & Propagation |
| Online Access: | https://doi.org/10.1049/mia2.12117 |
| _version_ | 1798036621221691392 |
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| author | Mahmoud Al Ahmad Saifudeen Kabeer Ala Abu Sanad Lillian J. A. Olule |
| author_facet | Mahmoud Al Ahmad Saifudeen Kabeer Ala Abu Sanad Lillian J. A. Olule |
| author_sort | Mahmoud Al Ahmad |
| collection | DOAJ |
| description | Abstract A single‐varactor frequency‐reconfigurable microstrip patch antenna is presented. The antenna comprises a symmetrical arrangement of four metallised patches coupled and interconnected via slots and metallic bars, respectively. The antenna structure is excited through a single feed probe connected to one of the patches. To achieve a compact size of 22 × 21 × 1.57 mm, a shorting pin is placed close to the feed point to pull down the antenna's resonant frequency. By adding a varactor diode at the centre of the patch, frequency reconfigurability is introduced. Variation in the varactor's DC reverse bias voltage from 0 to 7.5 V results in a corresponding resonant frequency shift from 1000 to 1150 MHz, thus providing a tuning range of 15%. The proposed design is compact and achieves frequency reconfiguration with a single‐varactor diode and a low bias voltage requirement compared with the design characteristics reported in existing works. The antenna can find application in various existing and emerging communication systems. |
| first_indexed | 2024-04-11T21:15:27Z |
| format | Article |
| id | doaj.art-0ffee93241274688872dcdf0cd2e8954 |
| institution | Directory Open Access Journal |
| issn | 1751-8725 1751-8733 |
| language | English |
| last_indexed | 2024-04-11T21:15:27Z |
| publishDate | 2021-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Microwaves, Antennas & Propagation |
| spelling | doaj.art-0ffee93241274688872dcdf0cd2e89542022-12-22T04:02:50ZengWileyIET Microwaves, Antennas & Propagation1751-87251751-87332021-07-011591100110710.1049/mia2.12117Compact single‐varactor diode frequency‐reconfigurable microstrip patch antennaMahmoud Al Ahmad0Saifudeen Kabeer1Ala Abu Sanad2Lillian J. A. Olule3National Space Science and Technology Center UAE University Al Ain United Arab EmiratesDepartment of Electrical Engineering UAE University Al Ain United Arab EmiratesNational Space Science and Technology Center UAE University Al Ain United Arab EmiratesNational Space Science and Technology Center UAE University Al Ain United Arab EmiratesAbstract A single‐varactor frequency‐reconfigurable microstrip patch antenna is presented. The antenna comprises a symmetrical arrangement of four metallised patches coupled and interconnected via slots and metallic bars, respectively. The antenna structure is excited through a single feed probe connected to one of the patches. To achieve a compact size of 22 × 21 × 1.57 mm, a shorting pin is placed close to the feed point to pull down the antenna's resonant frequency. By adding a varactor diode at the centre of the patch, frequency reconfigurability is introduced. Variation in the varactor's DC reverse bias voltage from 0 to 7.5 V results in a corresponding resonant frequency shift from 1000 to 1150 MHz, thus providing a tuning range of 15%. The proposed design is compact and achieves frequency reconfiguration with a single‐varactor diode and a low bias voltage requirement compared with the design characteristics reported in existing works. The antenna can find application in various existing and emerging communication systems.https://doi.org/10.1049/mia2.12117 |
| spellingShingle | Mahmoud Al Ahmad Saifudeen Kabeer Ala Abu Sanad Lillian J. A. Olule Compact single‐varactor diode frequency‐reconfigurable microstrip patch antenna IET Microwaves, Antennas & Propagation |
| title | Compact single‐varactor diode frequency‐reconfigurable microstrip patch antenna |
| title_full | Compact single‐varactor diode frequency‐reconfigurable microstrip patch antenna |
| title_fullStr | Compact single‐varactor diode frequency‐reconfigurable microstrip patch antenna |
| title_full_unstemmed | Compact single‐varactor diode frequency‐reconfigurable microstrip patch antenna |
| title_short | Compact single‐varactor diode frequency‐reconfigurable microstrip patch antenna |
| title_sort | compact single varactor diode frequency reconfigurable microstrip patch antenna |
| url | https://doi.org/10.1049/mia2.12117 |
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