Abstract

A compact ultra-wideband (UWB) antenna with quadruple notched bands is proposed. The antenna consists of a fork-shaped radiator, a ground plane and a coplanar waveguide (CPW) feed-line. The UWB antenna can efficiently operate in the frequency band of 3.1–11 GHz. To obtain four rejected bands, four slots are etched on the radiator and ground plane. Rejected frequency bands of WLAN (5.72–5.80 GHz), WLAN (5.28–5.40 GHz), C-band (3.65–4.21 GHz) and ITU (7.92–8.5 GHz), are realized by a U-shaped slot, a Cap-shaped slot and a Meander-line slot. Both design and analysis of the proposed antenna are detailed in the paper.

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