[天线]16 DESIGN OF AN EXPONENTIALLYTAPERED TEM HORN ANTENNA FOR THE WIDE BROADBAND COMMUNICATION

DESIGN OF AN EXPONENTIALLYTAPERED Wo+CQH6(  
TEM HORN ANTENNA FOR vSC0D7BlG  
THE WIDE BROADBAND 33'lZubV  
COMMUNICATION DE\bYxJ  
Hyoungjin Choi and Sangseol Lee G? gXK W  
Division of Electronic and Computer Engineering 0/
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Hanyang University xf"5<PTW</  
Seoul, 133-791, Korea TTZxkK  
Received 23 August 2003 ~uR6z//%  
ABSTRACT: A transverse electromagnetic (TEM) horn antenna is designed auTTvJ  
and realized using exponentially tapered conductor flares for 5vX8mPR_  
wireless communications. This exponentially tapered structure of the @@3,+7%1  
flares decreases the impedance mismatching a lot and reduces the size !FO^:V<|5  
and cost of the TEM horn. The VSWR of the antenna is less than 2 in a<wQzgxG  
the frequency band of 74.4 MHz to 1.19 GHz, and its gain is more than !M&un*  
8.3 dBi over 200 MHz. Those performances show that the designed o?mXxL)  
TEM horn antenna has wide broadband characteristics. © 2004 Wiley =l2Dm  
Periodicals, Inc. Microwave Opt Technol Lett 40: 531–534, 2004; x36#x  
Published online in Wiley InterScience ([url]www.interscience.wiley.com[/u .. :@%-f:iDj  
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