• A compact printed ultra-wideband filtenna with low dispersion for WiMAX and WLAN interference cancellation

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      https://www.ias.ac.in/article/fulltext/sadh/045/0261

    • Keywords

       

      Ultra-wideband (UWB) filtenna; frequency notch; printed monopole; circular split ring resonator (CSRR); U-slot.

    • Abstract

       

      A printed monopole filtenna fed by a co-planar waveguide with U-shaped split slot on patch and circular split ring resonator pairs at the other side of feed is proposed in this letter. The compact filtenna of dimension 0.32k 9 0.215k (k denotes wavelength corresponding to 2.68 GHz) is capable of providing largebandwidth from 2.68 to 8.72 GHz with dual frequency notch bands over 3.28–3.84 and 4.95–6.02 GHz, primarily to eliminate the WiMAX and WLAN interferences. The dual notched antenna performances are evaluatedby simulation and experimental measurement and compared to those of recently reported ultra-wideband (UWB) notched antennas. The proposed filtenna provides bidirectional E-plane and omni-directional H-plane radiation patterns with gain variation of 2–4.5 dBi and average radiation efficiency of 78% in its pass band. Also the filtenna offers minimal dispersion characteristic as stable group delay response, and linear variation of transfer function (S21) is achieved in its pass bandwidth

    • Author Affiliations

       

      SURAJIT KUNDU1

      1. Department of ECE, National Institute of Technology Sikkim, Ravangla, South Sikkim 737139, India
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