A Novel Multi-notch UWB Antenna Based on CPW-Feed

This paper proposes a novel multi-notch ultra-wideband (UWB) antenna based on coplanar waveguide (CPW)feeding. The proposed antenna has a pair of square split resonator rings (SRRs) that can control the notch frequency. Two notch frequencies of 2.6 GHz and 6.0 GHz have been obtained by the SRRs loading and the regular hexagonal split ring slotting, and the double notch characteristics are realized. The design results show that the antenna can achieve broadband characteristics in the 2.0-8.0 GHz band, and the return loss(S
₁₁
) is lower than -10 dB, forming a stop band of 2.8-3.0 GHz and 5.-86.2 GHz.