[天线]11 An approximate formulation for the characteristic impedance of noncoplanar fin antennas

International Journal of Infrared and Millimeter Waves, Vol. 18, No. 2, 1997 (Zg'])  
AN APPROXIMATE FORMULATION FOR THE {ET
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CHARACTERISTIC IMPEDANCE OF NONCOPLANAR Z_W
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FIN ANTENNAS TZ *>MySiF  
Zhengwei Du and Chengli Ruan }@eIO|  
Institute of Applied Physics p8Z?R^$9H  
University of Electronic Science and Technology of China ?4A/?Z]ub  
Chengdu, Sichuan 610054 B*Q9g r  
People's Republic of China G %'xEr0n  
Received December 2, 1996 w4(L@1  
Abstract b9-IrR4h  
This paper describes an approximation for the characteristic '2GnAws^  
impedance of noncoplanar fin antennas. The formulation is simple and nv0\On7wd  
enough accurate for practical applications. The error made by the 8EI9&L>  
approximation is less than + 2%, it has been proved to be effective by o^XDG^35`  
stripline theory. The numerical results are good agreement to the _%q~K (::  
experimental resul .. eU\xOTl~<{  
pO_IUkt  

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