Title :
On the radiation characteristics of finite dual-polarized arrays of tapered-slot antennas
Author :
Craeye, Chrhtophe
Author_Institution :
Lab. TELE, Univ. Catholique de Louvain, Louvain-la-Neuve, Belgium
Abstract :
As a result of extremely strong couplings, the element patterns of antennas in wideband phased arrays strongly depend on their position within the array. The differences with respect to the infinite-array solution are analyzed for dual-polarized arrays made of tapered-slot antennas. Exploiting the three symmetry planes of the arrays, MoM solutions are obtained for arrays containing up to 9×10×2 elements. The effects of array truncation are stronger for low frequencies and grazing angles. The phenomenon of waveguide anomaly is analyzed in finite arrays versus frequency and scan angle.
Keywords :
antenna phased arrays; antenna radiation patterns; broadband antennas; method of moments; slot antenna arrays; MoM solutions; array truncation; element patterns; finite dual-polarized arrays; infinite-array solution; radiation characteristics; scan angle; strong EM coupling; tapered-slot antenna arrays; waveguide anomaly phenomenon; wideband phased arrays; Antenna arrays; Bandwidth; Broadband antennas; Computational modeling; Frequency; Impedance; Message-oriented middleware; Moment methods; Phased arrays; Shape;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2004. IEEE
Print_ISBN :
0-7803-8302-8
DOI :
10.1109/APS.2004.1331929
