Abstract
A novel compact ultrawideband (UWB) antenna with triple band-notched characteristics is proposed. Triple narrow band-notched characteristics are achieved by embedding a spade-shaped slot on the radiating patch as well as adding a separated strip on the front side and a bowl-shaped resonator on the backed plane of the reference UWB antenna. The measured impedance bandwidth defined by voltage standing wave ratio (VSWR) < 2 of 8.0 GHz (3.0–11.0 GHz), with the triple notched bands of 3.3–3.7, 5.15–5.4, and 5.7–5.9 GHz, are obtained. The proposed antenna with an overall dimension of only 24 mm × 29 mm is successfully designed and measured, showing broadband matched impedance and stable radiation patterns. Moreover, measured group delay and transmission characteristics indicate that the proposed antenna has good transient response. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26167
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