Abstract
In this article, a dual band frequency reconfigurable antenna is proposed for WiMAX and WLAN applications. Double-Square-Ring (DSR) shaped radiator is designed to exhibit dual mode operations and PIN diodes are implemented to switch the operating modes. Coaxial feed is selected to feed the antenna as the spurious radiation from it is minimal as compared with the microstrip feed. The current path along the radiating patch is affected with the ON and OFF conditions of the PIN diode which results in dual mode operation of the proposed antenna. The antenna is having a small footprint of 40 × 40 mm2 fabricated on a 1.6 mm thick FR-4 substrate. Presented antenna covers an impedance bandwidth of 52 MHz in WiMAX band (2.28 − 2.33 GHz) and 157 MHz in the WLAN band (5.1 − 5.28 GHz). This antenna’s working principle is explained through current distribution diagrams along with design evolution. The experimental and simulated results are presented to validate the proposed antenna design.
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Sathishkumar, N., Nandalal, V. & Natarajan, R. Design of a Compact Double-Square-Ring-Shaped Dual-Band Antenna for WiMAX/WLAN Applications. Wireless Pers Commun 128, 2073–2084 (2023). https://doi.org/10.1007/s11277-022-10032-5
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DOI: https://doi.org/10.1007/s11277-022-10032-5