Bandwidth enhancement of rectangular monopole antenna using modified semi‐elliptical ground plane and slots

Abstract

This article presents an optimized design for a novel printed monopole antenna, with a notched semi‐elliptical ground plane. A parametric study of the antenna parameters and their effects is given. The monopole antenna with the proposed bandwidth enhancement technique covers the band 3.1–10.6 GHz, which has been approved by the Federal Communications Commission as a commercial band for ultra‐wideband communication systems, with a measured return loss bandwidth of 7.9 GHz (2.9–10.8 GHz). © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 54–58, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24830

A fractal geometry, multi-band, miniaturized monopole antenna design for UWB wireless applications

“…Figure 3 and Figure 4 The above figures indicate that, the proposed antenna is broadband and applied in UWB applications (3 GHz-10.6 GHz) since in these frequencies the 11 S <−15 dB and VSWR < 2. In terms of bench mark, return loss of -10 dB and below is acceptable for UWB applications.…”

“…The proposed structure is 978-1-4577-0048-4/11/$26.00 ©2011 IEEE shown in Figure 1. The antenna feed is created through a microstrip line with a feeding section [11]. An annular-ring patch technique is applied to the substrate in order to improve the radiation patterns [12].…”

Modified hexagonal Sierpinski gasket-based antenna design with multiband and miniaturized characteristics for UWB wireless communication

“…The dimensions of the configuration are as follows: l s = 24.4 mm, l a = 14.2 mm, w a = 7 mm, w b = 3.5 mm, and l b = 10.2 mm. A microstrip line with a feeding section is formed for the feeding section of the proposed antenna [25]. A modified ground plane is applied on the dielectric substrate with a 50-Ω microstrip feed line in order to achieve ultrahigh bandwidth with omnidirectional radiation characteristics.…”

Design of a Novel Antenna and Its Characterization in Frequency and Time Domains for Ultra Wide Band Applications.

“…The partial ground plane is chosen of the semi-ellipse shape in order to obtain linear phase characteristics of the reflection co-efficient for transmission/reception of narrow pulses in UWB systems to achieve nearly constant group delay across the frequency band [14]. The size of the ground plane is crucial in achieving the ultra wide bandwidth.…”