Title : 
Printed annular monopole antenna for ultra-wideband applications
         
        
            Author : 
Liang, X.-L. ; Zhong, S.S. ; Wang, W. ; Yao, F.-W.
         
        
            Author_Institution : 
Sch. of Commun. & Inf. Eng., Shanghai Univ., China
         
        
        
        
        
        
        
            Abstract : 
A novel printed monopole antenna for ultra-wideband applications is introduced, which consists of an annular monopole patch and a trapeziform ground plane with a tapered CPW feeder in the middle. The simulated and experimental results demonstrate that this antenna achieves a ratio impedance bandwidth of more than 10:1 for VSWR≤2, and exhibits the nearly omnidirectional radiation pattern with a simple structure.
         
        
            Keywords : 
antenna radiation patterns; coplanar waveguides; electric impedance; loop antennas; microstrip antennas; monopole antennas; ultra wideband antennas; CPW feeder; annular monopole patch; omnidirectional radiation pattern; printed annular monopole antenna; ratio impedance bandwidth; trapeziform ground plane; ultra-wideband application;
         
        
        
            Journal_Title : 
Electronics Letters
         
        
        
        
        
            DOI : 
10.1049/el:20063850