Compact hollowed printed monopole antenna with extremely wide bandwidth

Abstract

Abstract A compact hollowed printed monopole antenna with an extremely wide bandwidth is introduced, which is composed of a hollowed elliptical monopole patch and a trapeziform ground plane, both printed on the same side of a substrate, and is fed by a tapered CPW feeder in the middle of the ground plane. The simulated and experimental results agree well and demonstrate that this antenna achieves a measured impedance bandwidth from 0.44 to 10.6 GHz (24.1:1) for VSWR ≤ 2, and exhibits a nearly omnidirectional radiation pattern, while its area is only about 0.20λ l × 0.13 λ l , where λ l is the wavelength of the lowest operating frequency. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 2883–2886, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22829