A Compact Reconfigurable Dual Band-Notched Ultra-Wideband Antenna using Varactor Diodes

Sam Weng Yik, Zahriladha Zakaria, Herwansyah Lago, Noor Azwan Shairi

Abstract


In this paper, a reconfigurable dual band-notched ultra-wideband (UWB) antenna is presented. The antenna design consists of a circular shape with two pairs of the L-resonator. To realize the notch characteristics in WLAN at 5.2 GHz and 5.8 GHz bands, the half wavelength of the L-resonator is introduced in the design. The T-shaped notch is etched in the ground to enhance the bandwidth which covers the UWB operating frequency range from 3.219 – 10.863 GHz. The proposed reconfigurable dual band-notched UWB antenna shows good impedance matching for the simulated in the physical layout. Furthermore, the proposed antenna has a compact size of 37.6 x 28 mm2. This proposed reconfigurable design can provide an alternative solution for the wireless system in the designing of a band-notched antenna with a good tuning capability.

Keywords


band-notched; i-resonator; ultra-wideband (UWB); varactor diode;

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DOI: http://dx.doi.org/10.12928/telkomnika.v16i6.11552

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TELKOMNIKA Telecommunication, Computing, Electronics and Control
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