A novel printed UWB and Bluetooth antenna with quad band-notched characteristics

摘要

A novel printed circle dual-band monopole antenna for Bluetooth and UWB is proposed in this paper. In order to prevent potential interference due to existing nearby communication systems, four rejection bands for 2.6GHz (TD-LTE), 3.3–4.2GHz (WiMAX and C-band communication satellite), 5.2–5.8GHz (WLAN and HIPERLAN/2) and 7.25–7.75GHz (downlink of X-band satellite communication systems) are realized by inserting two SRR-shaped slots into the radiators and adding two parasitic meandered ground stubs closing to the feed-line. The quad notched bands' center frequencies are modulated by changing the size of SRR-shaped slots and parasitic meandered ground stubs. The measured results show this antenna operates at 2.2 to 10.6 GHz, with previous mentioned four bands rejected. Besides, the proposed antenna has a compact size of 33mm*46mm, where these characteristics denote it is fit for mobile devices.