[天线]13 Calculation of the characteristic impedance of TEM horn antennas

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, VOL. 43, NO. 1, JANUARY 1995 47 9N*!C{VW  
Calculation of the Characteristic Impedance J^xIfV~zt  
of TEM Horn Antennas Using the KrzIL[;2o  
Conformal Mapping Approach F=9
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A. P. Lambert, Member, IEEE, S. M. Booker, and P. D. Smith, Associate, IEEE rJ^*8C!  
Abstract- A new conformal mapping technique for determining 7+c}D>/`:  
the characteristic impedance of TEM horn antennas is *vS)aRK  
presented. The original work by Carrel [l], on noncoplanar fin )"sJaH
x<  
antennas of this type, predicts incorrect impedance values, which tsys</E&  
do not agree with experimental results. This paper discusses fully } >z
l  
the source of the error in [ll and details the successive mappings FC&841F  
involved in the new approach. Verification of the method is y=k!>Y|E  
provided b .. |k[hk  
~]S%b3>  

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