Vol. 106

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2020-10-23

A Compact Frequency Reconfigurable Printed Antenna for WLAN, WiMAX Multiple Applications

By Prem Pal Singh, Sudhir Kumar Sharma, and Pankaj Kumar Goswami
Progress In Electromagnetics Research C, Vol. 106, 151-161, 2020
doi:10.2528/PIERC20082705

Abstract

In this research work a compact patch antenna which is reconfigurable for frequency is presented. Frequency reconfigurability is achieved by the use of two PIN diodes. Antenna operates over four frequencies, i.e., for WiMax (4.94 GHz), WLAN (5.35), and C-Band (6.25 and 6.83 GHz) applications. The overall dimension of antenna is 25×25 mm2, and an FR-4 substrate having dielectric constant of 4.4 and thickness 1.6 mm is used to fabricate the prototype of the proposed antenna. Different resonant frequencies are obtained by cutting a ∏-slot and a U-slot in radiating patch and by modifying ground slot with a modified slotted structure. One diode is used in ground, and another PIN diode is used on the patch at an appropriate position. Maximum gain of 3.91 dBi and stable radiation characteristics and VSWR < 2 are obtained at the operating bands in simulation and measurement. The antenna elicits its novelty through compactness, portability for communication devices through combination of only two PIN diode switching in cellphones, tablets PCs, and other satellite communication devices operating in C-band as per FCC standard. A prototype of antenna is fabricated, and the measured and simulated parameters are in good agreement.

Citation


Prem Pal Singh, Sudhir Kumar Sharma, and Pankaj Kumar Goswami, "A Compact Frequency Reconfigurable Printed Antenna for WLAN, WiMAX Multiple Applications," Progress In Electromagnetics Research C, Vol. 106, 151-161, 2020.
doi:10.2528/PIERC20082705
http://www.jpier.org/PIERC/pier.php?paper=20082705

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