[天线]Study of a Printed Circular Disc Monopole Antenna for UWB Systems

Study of a Printed Circular Disc Monopole Antenna for UWB Systems 1^]IuPxq  
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Jianxin Liang, Student Member, IEEE, Choo C. Chiau, Student Member, IEEE, Xiaodong Chen, Member, IEEE, and Clive G. Parini, Member, IEEE F/Js K&&  
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Abstract—This paper presents a study of a novel monopole antenna F\&wFA'J  
for ultrawide-band (UWB) applications. Printed on a dielectric pFd{Tdh  
substrate and fed by a 50 XPrnQJ  
 microstrip line, a planar circular y`m0/SOT  
disc monopole has been demonstrated to provide an ultra wide 10 q<.k:v&  
dB return loss bandwidth with satisfactory radiation properties. 7)D[}UXz  
The parameters which affect the performance of the antenna in nt_Cb*K<  
terms of its frequency domain characteristics are investigated. A 38-kl,Vw  
good agreement is achieved between the simulation and the experiment. U= GJuixy  
In addition, the time domain performance of the proposed =W')jKe0  
antenna is also evaluated in simulations. umuj>  
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