Printed ultra-wideband elliptical antenna with a frequency-band notch function

✍ Scribed by Abdallah A. Alshehri; A. R. Sebak; T. A. Denidni

• Publisher: John Wiley and Sons
• Year: 2009
• Tongue: English
• Weight: 698 KB
• Volume: 51
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/mop.24183

✦ Synopsis

Abstract

Two printed ultra‐wideband (UWB) elliptical antennas are proposed. The first antenna is a printed elliptical antenna with notch cut fed by a microstrip line. It is designed and fabricated for UWB applications under the band (3.1–10.6 GHz). To obtain sufficient matching bandwidth, a partial ground plane, feed gap, and notch cut are used. The antenna is then modified to obtain frequency band notch function of 5.2/5.8 GHz by inserting a U‐shaped slot beneath the notch cut in the elliptical patch. A parametric study is carried out to optimize the proposed structures. The measured bandwidth for the designed antenna without U‐shaped slot is 8.35 GHz. For the antenna with U‐shaped slot, the measured bandwidth is from 3.08 to 11.00 GHz with band rejection from 4.70 to 5.84 GHz. Good radiation patterns and antenna gains, except in the notched frequency band, have also been obtained. Details of the proposed antenna designs and the measured results are presented and discussed. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 860–864, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24183