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http://dx.doi.org/10.5515/KJKIEES.2012.23.4.415

Optimized Design of Wide-Band Subarray Using a Genetic Algorithm  

Kim, Doo-Soo (Agency for Defense Development)
Lee, Dong-Koog (Agency for Defense Development)
Kim, Seon-Joo (Agency for Defense Development)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.23, no.4, 2012 , pp. 415-423 More about this Journal
Abstract
This paper specifies on optimized design of wide-band subarray using a Genetic Algorithm. First wide-band radiator was designed at triangle lattice of infinite array structure. It is the radiator of notch type that has a wide-band characteristic of ratio 2:1 between maximum and minimum frequency satisfying active reflection coefficient under -10 dB at boresight. And a Genetic Algorithm was applied to optimize subarray partition of antenna consisting of 1,100 array elements. It was confirmed that an optimized subarray antenna has a 4.5-5.5 dB more improved maximum SLL (Side-Lobe Level) than regular subarray antenna.
Keywords
Genetic Algorithm; Subarray; Wide-Band Radiator; Antenna Pattern; SLL(Side-Lobe Level);
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