DESIGN AND ANALYSIS OF A COMPACT ELLIPTICALDUAL BAND-NOTCHED UWB ANTENNAUSING ESCSRRS

Surendra Kumawat, Sandeep Kumar Toshniwal

Abstract: In this paper, a compact elliptical shaped patch ultra-wideband (UWB) antenna for dual band-notched characteristics is presented. The antenna is consists of an elliptical shaped patch, a 50 O microstrip feed line, half elliptical square slot modified ground plane, and two elliptical single complementary split ring resonators (ESCSRRs) of different dimensions. The proposed antenna exhibits impedance bandwidth 2.82-12 GHz for UWB applications. The dual band-notched characteristics are created at 3.27-3.76 GHz and 4.1-4.6 GHz by cutting two ESCSRRs of different dimensions in the elliptical patch near to feed line for rejecting 3.5 GHz WiMAX band and 4.4 GHz C-band, respectively. Overall two bands are notched using two notched elements and all notches are controllable through circumference of the individual ESCSRR. The reduced peak realized gain – 5.3 dBi for 3.5 GHz WiMAX and – 3.2 dBi for 4.4 GHz C-band is obtained in the notched region. Results show good UWB characteristics, realized gain and omnidirectional radiation patterns over the UWB band with size of 24 mm × 34 mm.

Keywords: Elliptical antenna; ESCSRRs; UWB antenna, WiMAX; C-Band

DOI: https://doi.org/ 10.15623/ijret.2017.0610008