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http://dx.doi.org/10.5515/KJKIEES.2011.22.7.720

Monopulse Secondary Surveillance Radar Antenna with Sum/Difference/SLS Channels  

Choi, Jong-Hwan (LIG Nex1)
Chae, Hee-Duck (LIG Nex1)
Park, Jong-Kuk (LIG Nex1)
Na, Hyung-Gi (LIG Nex1)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.22, no.7, 2011 , pp. 720-728 More about this Journal
Abstract
In this paper, development of the monopulse secondary surveillance radar antenna which can be used for IFF system is presented. This antenna that is passive linear array is comprised of the row-feeder and several array-elements. The row-feeder provides sum, different and SLS(Sidelobe Supression) channels which are optimized the distribution of the power and phase ratio. The azimuthe sidelobe level of the sum channel beam pattern is -20 dBc or less. The SLS channel covers the sidelobe of the sum-chanel in the whole azimuth angle range. And the difference channel is used to perform the mono-pulse function, improves the detection accuracy in the azimuth direction. Meanwhile, the arrayelement makes shaped beam in the elevation angle, in order to eliminate the clutter and multipath effects from the ground. Performance of the antenna developed is verified by the measurement of S-parameters and far-field beam pattern, and satisfies all of the development specifications well.
Keywords
Passive Array Antenna; SSR Antenna; IFF Antenna; Side-lobe Suppression;
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