Two PIN Loaded Inverted L Slot Embedded Polarization Reconfigurable Antenna for WLAN Applications
| Authors | A. Priya1, M. Vanmathi1, A.R. Kumar1, R. Iniyavan1, M.S. Kumar2, R. Kumudham3, R.V. Mangalraja4 |
| Affiliations |
1Department of Electronics and Communication Engineering, B S Abdur Crescent Institute of Science and Technology, Vandalur, Chennai, Tamil Nadu, India 2School of Mechanical Engineering, Vellore Institute of Technology, Chennai, Tamil Nadu, India 3Department of Electronics and Communication Engineering, Vels Institute of Science, Technology And Advanced Studies (VISTAS), Chennai, Tamil Nadu, India 4Faculty of Engineering and Sciences, Universidad Adolfo Ibanez, diagonal las torres 2640 peñalolén, Santiago 7941169, Chile |
| Е-mail | vanmathi@crescent.education |
| Issue | Volume 16, Year 2024, Number 5 |
| Dates | Received 05 June 2024; revised manuscript received 21 October 2024; published online 30 October 2024 |
| Citation | A. Priya, M. Vanmathi, et al., J. Nano- Electron. Phys. 16 No 5, 05021 (2024) |
| DOI | https://doi.org/10.21272/jnep.16(5).05021 |
| PACS Number(s) | 84.40.Ba |
| Keywords | Reconfigurable, WLAN (3) , PIN diode, Linear polarization, Circular polarization. |
| Annotation |
A simple and compact polarization reconfigurable patch antenna design is proposed to operate in WLAN band at a resonant frequency of 2.4 GHz. This antenna consists of a rectangular patch placed on an FR4 substrate. A rectangular slot is cut in the rectangular patch. Two L shaped microstrip strips are placed inside the slot and joined together at the centre of the rectangular patch by inverting the L shaped microstrip. There are three different methods of achieving the reconfigurability namely electrical, mechanical and optical. This proposed structure uses electrical reconfiguration technique. This proposed antenna structure uses PIN diodes for achieving the polarization reconfigurability because of its ease in biasing. Two PIN diodes both being placed on the inverted L shaped structure in order to achieve the polarization modes and these PIN diodes are used to connect this microstrip with the rectangular patch. By switching these two PIN diodes for various biasing conditions, four different polarization modes namely two linear polarization (LP) modes, one Left Hand Circular polarization (LHCP) and one Right Hand Circular polarization (RHCP) mode is achieved. The antenna produces simulated gain of around 1.5416 dB for LP1 mode at 2.41 GHz, 1.7175 dB for LP2 mode at 2.45 GHz, 1.6062 dB for RHCP mode and 1.5922 dB for LHCP mode both at 2.4 GHz. The antenna structure is simulated using Ansys HFSS. |
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