Title :
Novel band-notch monopole ultra-wideband antenna with external load
Author :
Guan, Xuehui ; Deng, Hui ; Liu, Haiwen ; Wang, Chuanyun ; Liu, Zhiwei
Author_Institution :
Sch. of Inf. Eng., East China Jiaotong Univ., Nanchang, China
Abstract :
A band-notch ultra wideband monopole antenna is presented in this paper. Firstly, an ultra-wideband monopole antenna is designed using a radial patch. The path is fed by using microstrip line. The return loss of the antenna is less than -10dB within the frequency range of UWB system, i.e. from 3.1GHz to 10.6GHz. To restrain the interference between UWB and WLAN a notch band shall be inserted in the UWB passband. Two symmetrical microstrip resonators are externally loaded to the microstrip feed line to form a notch band. The frequency range of notch band can be controlled by adjusting the size and the position of the loaded resonator. A notch band from 5.2GHz to 5.8GHz is achieved. As the experimental results show the proposed antenna has steady characteristics of radiation direction and gain on the whole working frequency range.
Keywords :
antenna feeds; interference suppression; microstrip lines; microstrip resonators; monopole antennas; radiofrequency interference; ultra wideband antennas; wireless LAN; UWB passband; UWB system; WLAN; band-notch monopole ultrawideband antenna; external load; frequency 3.1 GHz to 10.6 GHz; interference suppression; microstrip feed line; notch band; radial patch; radiation direction steady characteristics; return loss; symmetrical microstrip resonators; Microstrip antennas; Microstrip resonators; Resonant frequency; Ultra wideband antennas;
Conference_Titel :
Microwave and Millimeter Wave Technology (ICMMT), 2012 International Conference on
Conference_Location :
Shenzhen
Print_ISBN :
978-1-4673-2184-6
DOI :
10.1109/ICMMT.2012.6230164
