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

CHARACTERIZATION OF A WIDEBAND, LOW- Q , ELECTRICALLY SMALL ANTENNA -& T.rsp  
Craig A. Grimes,1 Gang Liu,1 Dale M. Grimes,1 and OeYZLC(  
Keat Ghee Ong1 $X ]t}
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1 Department of Electrical Engineering XQI!G_\+C  
University of Kentucky \]Y=*+{  
Lexington, Kentucky 40506-0046 M}\p/r=  
2 Department of Physics and Astronomy pdq5EUdS  
University of Kentucky "Gc\"'^r  
Lexington, Kentucky 40506-0055 J_}Rsp ED  
Receied 30 March 2000 R^Y>v5jAe  
ABSTRACT: Using numerical and experimental techniques, a wideband, S '(K  
low-Q, electrically small antenna design is characterized as a function of i@o'Fc  
frequency and the relatie phasing between antenna elements. The <o"2
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antenna demonstrates wideband operation, with a radiation Q approximately Mq Q'Kjo  
a factor of 20 below the Q-limit established by Chu for electrically 2=`}:&0l  
small, omnidirectional antennas.  2000 John Wiley & Sons, Inc. eEZZ0NNe;  
Micr .. )Pj4_$uM  
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