Title :
A microstrip-fed ultra-wideband antenna with two stop bands
Author :
Li, Yingsong ; Bai, Yu ; Liu, Chengyuan ; Yang, Xiaodong
Author_Institution :
Coll. of Inf. & Commun. Eng., Harbin Eng. Univ., Harbin, China
Abstract :
A microstrip-fed ultra-wideband monopole antenna with two stop bands is presented. The impedance bandwidth is broadened by etching a “gong”-shaped slot in the ground plane. Two stop frequency bands are obtained by embedding two rectangle slots in the ground plane and a stub in the radiation patch. The two notched bands can be controlled by adjusting the length of the responding slot and the dimension of the stub. Experimental and numerical antenna shows that the proposed antenna with compact size of 34×30mm2, has an impedance bandwidth range from 2.5GHz to 10.9GHz for voltage standing-wave ratio less than 2, expect two notch band frequency 4.9GHz-6GHz for WLAN and 3.1GHz-4GHz for WiMAX.
Keywords :
WiMax; antenna feeds; band-stop filters; impedance matching; microstrip antennas; monopole antennas; slot antennas; ultra wideband antennas; wireless LAN; WLAN; WiMAX; etching; gong-shaped slot; ground plane; impedance bandwidth range; microstrip-fed ultra-wideband antenna; microstrip-fed ultra-wideband monopole antenna; notch band frequency; notched bands; numerical antenna; radiation patch; rectangle slots; stop bands; stop frequency bands; voltage standing-wave ratio; Antenna radiation patterns; Bandwidth; Impedance; Microstrip antennas; Slot antennas; Ultra wideband antennas; “gong”-shaped slot; Stub; Ultra-wideband antenna; notch band antenna;
Conference_Titel :
Microwave Conference Proceedings (CJMW), 2011 China-Japan Joint
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4577-0625-7
Electronic_ISBN :
978-7-308-08555-7
