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J. Electromagn. Eng. Sci > Volume 11(3); 2011 > Article
Journal of the Korean Institute of Electromagnetic and Science 2011;11(3):207-212.
DOI: https://doi.org/10.5515/JKIEES.2011.11.3.207   
Design of CPW-Fed Small Multi-Band Antenna by Using Band Rejection Semicircle Slot
Xiao Li, Seung-Woo Lee, Nam Kim, Chul-Ho Kim
Information and Communication Engineering, Chungbuk National University
This paper presents a CPW-fed antenna with three slots. The proposed antenna can operate at 1.9~2.1 GHz and 2.9~3.3 GHz which are generated by the two rectangular slots, and 4.5~11.6 GHz which is generated by the main patch. The semicircle-slot is used as a band-notched filter to stop at a desired band (5.150~5.825 GHz) limited by IEEE 802.11a or HIPERLAN/2 applications. The currents concentrate around corresponding slots at the desired band. The proposed antenna is very small in size, with overall dimensions of $27{times}32{times}1;mm^3$ etched onto an FR4-printed circuit board (PCB).
Key words: CPW-Fed, Band-Notched, UWB, WLAN


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