Title :
A wide-band dual-polarized antenna array for satellite communications
Author :
Chan, K.K. ; Rao, K.S.
Author_Institution :
Chan Technol. Inc., Kirkland, Que., Canada
Abstract :
Through the use of measured feed network port excitations and accurate array simulations we have demonstrated that the concept of driving a large hexagonal array with a two-dimensional stack of planar Rotman lenses is capable of producing high directivity, dual-polarized beams over a wide frequency band. This concept is suitable for producing a large number of overlapping beams with frequency invariant pointing.
Keywords :
active antenna arrays; antenna feeds; electromagnetic wave polarisation; horn antennas; lens antennas; microwave antenna arrays; planar antenna arrays; satellite antennas; Ka-band; array simulations; beamforming network; dual-polarized beams; frequency invariant pointing; hexagonal array; high directivity beams; horn array design; measured feed network port excitations; overlapping beams; planar Rotman lenses; satellite communication; two-dimensional stack; wide frequency band; wide-band dual-polarized antenna array; Antenna arrays; Apertures; Broadband antennas; Feeds; Integral equations; Lenses; Optical design; Satellite antennas; Satellite communication; Shape;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1998. IEEE
Conference_Location :
Atlanta, GA, USA
Print_ISBN :
0-7803-4478-2
DOI :
10.1109/APS.1998.698729
