[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 GgjBLe=C  
Calculation of the Characteristic Impedance iAWoKW  
of TEM Horn Antennas Using the __||cQ  
Conformal Mapping Approach |zL.PS  
A. P. Lambert, Member, IEEE, S. M. Booker, and P. D. Smith, Associate, IEEE -OP5v8c f  
Abstract- A new conformal mapping technique for determining 'w7{8^Z2  
the characteristic impedance of TEM horn antennas is ?|Mmz@  
presented. The original work by Carrel [l], on noncoplanar fin B6vmBmN  
antennas of this type, predicts incorrect impedance values, which L:EJ+bNG  
do not agree with experimental results. This paper discusses fully r,dxW5v.  
the source of the error in [ll and details the successive mappings ,K[B/tD{j  
involved in the new approach. Verification of the method is LvS3c9|Aj  
provided b .. c[0$8F>  
1vxh3KS.  

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