Multi-Resonance Monopole Antenna with Variable Band-Notch Performance for UWB Applications
Keywords:
Band-notched performance, square monopole antenna, S-shaped parasitic structure, ultra-wideband systemsAbstract
In this paper, a novel multi-resonance monopole antenna with frequency band-notched function is presented. By cutting a pair of rotated ? -shaped slots in the ground, the bandwidth is improved, that achieves a fractional bandwidth with multi resonance performance of more than 160 %. In order to achieve single band-rejected function an S-shaped parasitic structure was inserted in the ground plane and a frequency notched band of 5.03 GHz – 5.98 GHz has been received. The measured results reveal that bandwidth of proposed antenna is from 2.75 GHz to 18.73 GHz for VSWR < 2. Simulated and experimental results obtained for this antenna show that it exhibits good radiation behavior within the UWB frequency range. The designed antenna has a small size of 12?18 mm2.
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References
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