Title :
Wide-band planar arrays for radar applications
Author :
Rigoland, P. ; Drissi, M. ; Terret, C. ; Gadenne, P.
Author_Institution :
Lab. Struct. Rayonnantes, Univ. de Rennes I, France
Abstract :
This article presents the development of printed antennas arrays with formed patterns, operating in a 15% over 20% bandwidth (in C and X bands), with mono or dual linear polarization and intended for radar applications. These arrays are created by multilayer radiators fed across the slots, by a corporate feed distribution of microstrip lines and power dividers like Wilkinson (1960) and (or) hybrid rings. They are optimized in order to observe a good polarization purity (~-25 dB), and a weak sidelobe (~-25 dB) and cross-polarization level (~-25 dB)
Keywords :
antenna feeds; directive antennas; electromagnetic wave polarisation; microstrip antenna arrays; microstrip lines; microwave antenna arrays; power dividers; radar antennas; radar applications; C-band; Wilkinson power dividers; X-band; active phased array antennas; antenna radiation patterns; corporate feed distribution; crosspolarization level; dual linear polarization; hybrid rings; microstrip lines; monoploar array; multilayer radiators; polarization purity; printed antennas arrays; radar applications; single linear polarization; slots; weak sidelobe; wideband planar arrays; Bandwidth; Feeds; Linear antenna arrays; MONOS devices; Microstrip antenna arrays; Nonhomogeneous media; Planar arrays; Polarization; Radar antennas; Radar applications;
Conference_Titel :
Phased Array Systems and Technology, 1996., IEEE International Symposium on
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-3232-6
DOI :
10.1109/PAST.1996.566076
