[天线]31 ULTRAWIDEBAND ARRAY ANTENNAS FOR RADARS

ULTRAWIDEBAND ARRAY ANTENNAS FOR RADARS ]-`{kX  
Vladimir Koshelev \^:f4Z
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Institute of High Current Electronics, SB RAS 8ksDXf`.  
2/3 Akademichesky Ave., Tomsk 634055, Russian Federation V!=]a^]:  
Email: koshelev@lhfe.hcei.tsc.ru /kq~*s  
ABSTRACT ?k?Hp:8?=  
The paper presents the results of investigations of x[kdQj2[&  
array antennas intended to radiate high-power pulses Q'Tn+}B&  
of nanosecond and subnanosecond length. The array 8vP)qy8  
element is a combined antenna optimized for a given S9BJjo  
length of the exciting voltage pulse. Linear array D.GSl  
antennas were investigated by the radiation wave  t|DYz#]  
beam in the steering mode. Possibility to form dualpolarization 0?sp  
wave beams owing to the plane array Aws TDM  
antenna dividing into two sub-arrays and their ouI0"R&@  
excitation by the time-shifted voltage pulses was M;bQid@BG  
shown. Parameters of high-power radiati .. +$'/!vN  
8|/YxF<  

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