Click here to view fulltext PDF

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

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

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

SURAJIT KUNDU¹

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

Published

17 October 2020

Manuscript received

17 May 2020

Manuscript revised

19 August 2020

Accepted

24 August 2020