[天线]34 CHARACTERIZATION OF A WIDEBAND, LOW- Q , ELECTRICALLY SMALL ANTENNA

CHARACTERIZATION OF A WIDEBAND, LOW- Q , ELECTRICALLY SMALL ANTENNA gkX7,J-0  
Craig A. Grimes,1 Gang Liu,1 Dale M. Grimes,1 and {n&n^`Em  
Keat Ghee Ong1 {/(.Bpld  
1 Department of Electrical Engineering d``wx}#Uk  
University of Kentucky W"*2,R[}%  
Lexington, Kentucky 40506-0046 7x=4P|(\}  
2 Department of Physics and Astronomy ^Vhl@  
University of Kentucky *Ojl@N  
Lexington, Kentucky 40506-0055 e/_QS}OA  
Receied 30 March 2000 Q)y5'u qZ  
ABSTRACT: Using numerical and experimental techniques, a wideband, SuB8mPn  
low-Q, electrically small antenna design is characterized as a function of dF09_nw  
frequency and the relatie phasing between antenna elements. The x N7sFSV@  
antenna demonstrates wideband operation, with a radiation Q approximately :5['V#(o  
a factor of 20 below the Q-limit established by Chu for electrically 7AS_Aw1L  
small, omnidirectional antennas.  2000 John Wiley & Sons, Inc. 
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