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Frequency tuning varactor-loaded reconfigurable antenna for m-WiMAX and WLAN applications

Shah, S. M. and Hamdan, K. and Abidin, Z. Z. and Seman, F. C. and Hamzah, S. A. and Katiran, N. and Zubir, F. (2019) Frequency tuning varactor-loaded reconfigurable antenna for m-WiMAX and WLAN applications. Indonesian Journal of Electrical Engineering and Computer Science, 13 (2). pp. 779-786. ISSN 2502-4752

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A design approach for a microstrip patch antenna to achieve the reconfigurable dual-band operation with a tunable device is presented in this work. The approach uses a BB833 varactor diode in the middle of a slotted patch antenna which which is able to produce dual-band resonant frequencies. The reconfigurable antenna is designed and simulated in CST Microwave Studio software and is later, fabricated on a FR-4 substrate with a dielectric constant, r of 4.5, loss tangent, tan of 0.019 and thickness, h of 1.6 mm. By changing the DC voltages of the varactor diode, different capacitance values of the varactor diode are obtained which dictate the specific resonant frequencies. From the simulation results, the capacitance value of 0.5 pF with a bias voltage of 2.0 V is chosen as it produces the required dual-band resonant frequencies at 3.38 GHz and 5.37 GHz for desired applications in the m-WiMAX and WLAN bands.

Item Type: Article
Uncontrolled Keywords: Microstrip antenna; m-WiMAX; Reconfigurable antenna; Varactor diode; WLAN
Subjects: T Technology > T58.5-58.64 Information technology
Depositing User: Mr Abdul Rahim Mat Radzuan
Date Deposited: 29 Nov 2019 21:50
Last Modified: 29 Nov 2019 21:50
URI: http://eprints.uthm.edu.my/id/eprint/11966
Statistic Details: View Download Statistic

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