TY - JOUR AU - ESMATI, Zahra AU - MOOSAZADEH, Mahdi PY - 2019/06/03 Y2 - 2024/03/28 TI - A CPW-Fed Antenna with the Elliptical-shaped forms on the patch for Bandwidth Enhancement JF - International Journal of Natural and Engineering Sciences JA - ijnes VL - 7 IS - 1 SE - Articles DO - UR - https://ijnes.org/index.php/ijnes/article/view/136 SP - 26-30 AB - <p>This study presents a novel design of a printed elliptical-shaped antenna with coplanar waveguide (CPW) feed for multi-operating bands of<br>the wireless communication systems and ultra wideband (UWB) communication systems. shaped patch. By using of a pair of ellipse-shapecombined (ESC) form on the patch and halfThe radiator of the antenna is a slotted elliptical-ellipse-shaped slot inside initial patch, the proposed antenna can be<br>used in multiband wireless operations, covering the DCS (1.71–1.88 GHz), PCS (1.85–1.99 GHz), UMTS (1.92–2.17 GHz), 2.4-GHz WLAN<br>(2.4–2.484 GHz), Mobile-WiMAX( 2.5–2.69 GHz) and 5-GHzWLAN (5.15–5.825 GHz) bands. By inserting an ellipse-shape-combined (ESC)<br>form with variable dimensions on the patch, additional resonances are excited and hence much wider impedance bandwidth can be obtained,<br>especially at the higher band. The proposed antenna operates in the adopted bandwidth (3.1-10.6 GHz) with S11 &lt; 10 dB, and covers it very well<br>between 1.65 and 20 GHz, which provides fractional bandwidths of more than 170 %. The antenna has a desirable S11 level, radiation pattern and<br>gain characteristics for multi-operating bands.</p> ER -