Title :
Ultrawideband array antennas for radars
Author :
Koshelev, Vladimir
Author_Institution :
Institute of High Current Electronics, SB RAS, 2/3 Akademichesky Ave., Tomsk 634055, Russian Federation
Abstract :
The paper presents the results of investigations of array antennas intended to radiate high-power pulses of nanosecond and subnanosecond length. The array element is a combined antenna optimized for a given length of the exciting voltage pulse. Linear array antennas were investigated by the radiation wave beam in the steering mode. Possibility to form dual-polarization wave beams owing to the plane array antenna dividing into two sub-arrays and their excitation by the time-shifted voltage pulses was shown. Parameters of high-power radiation sources based on array antenna excitation by bipolar voltage pulses are presented.
Keywords :
Antenna arrays; Dipole antennas; Electromagnetic fields; Linear antenna arrays; Passband; Radar antennas; Ultra wideband antennas; Ultra wideband radar; Ultra wideband technology; Voltage;
Conference_Titel :
Antennas and Propagation, 2006. EuCAP 2006. First European Conference on
Conference_Location :
Nice
Print_ISBN :
978-92-9092-937-6
DOI :
10.1109/EUCAP.2006.4584500