Title :
Bandwidth enhancement of a wide slot UWB antenna with a notch band characteristic
Author :
Wang, Henan ; Li, Yingsong
Author_Institution :
Dept. of Inf. & Commun. Eng., Dalian Naval Acad., Dalian, China
Abstract :
A Coplanar waveguide (CPW) fed ultra-wideband (UWB) antenna with a notch band characteristic is presented for 2.4GHz and UWB applications. The proposed antenna consists of a wide slot, square ring, and a CPW fed structure. The impedance bandwidth is broadened by embedding two inverted L-shaped slots in the CPW ground and the notch band is achieved by etching a rectangle slot in the CPW ground. The notched band can be controlled by adjusting the length of the rectangle slot and the two inverted L-shaped slots. Experimental and numerical results show that the proposed antenna with compact size of 28×21mm2, has an impedance bandwidth range from 2.38GHz to 12.0GHz for voltage standing-wave ratio (VSWR) less than 2, expect the notch band frequency 5.0GHz-6.0GHz for HIPERLAN/2, IEEE 802.11a (5.1GHz-5.9GHz) and C-band (4.4GHz-5GHz) for satellite and military applications.
Keywords :
coplanar waveguides; slot antennas; ultra wideband antennas; CPW fed structure; bandwidth 2.38 GHz to 12 GHz; bandwidth enhancement; coplanar waveguide fed ultra wideband antenna; frequency 2.4 GHz; frequency 4.4 GHz to 5 GHz; frequency 5 GHz to 6 GHz; frequency 5.1 GHz to 5.9 GHz; impedance bandwidth; inverted L-shaped slots; notch band characteristic; rectangle slot; square ring; wide slot UWB antenna; Antenna feeds; Coplanar waveguides; Gain measurement; Impedance; Time frequency analysis; Transmitting antennas; CPW; L-shaped slots; Ultra-wideband antenna; notch band antenna;
Conference_Titel :
Communication Software and Networks (ICCSN), 2011 IEEE 3rd International Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-61284-485-5
DOI :
10.1109/ICCSN.2011.6014070
