A Novel Ultra-Wideband Monopole Antenna with Band-Stop Characteristic

Hadi Jalali Lak, Changiz Ghobadi, Javad Nourinia

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DOI: 10.4236/wet.2011.24032                

Abstract

In this letter, a simple monopole antenna with variable band-notched characteristic for ultra wide band (UWB) function is proposed. Two L-shaped quarter-waveguide resonators coupled to the ground plane with two shorting tracks at the sides of the antenna are used to generate stop-band performance around 5.5 GHz (WLAN). The proposed antenna is fabricated on the substrate FR4 (relative permittivity of 4.7) and has a compact size of 16 × 28.5 × 1.6 mm. The designed antenna has a good impedance matching in 3.1 - 11.4 GHz frequency range with VSWR < 2, except the band 5 - 5.85 GHz.

Keywords

Band-Notched Antennas, Band Rejection Antennas, Planar Antennas, Ultra Wideband (UWB)

Conflicts of Interest

The authors declare no conflicts of interest.

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