R. Staraj et al., INFINITE PHASED-ARRAYS OF MICROSTRIP ANTENNAS WITH PARASITIC ELEMENTS- APPLICATION TO BANDWIDTH ENHANCEMENT, IEEE transactions on antennas and propagation, 42(5), 1994, pp. 742-746
Microstrip phased array antennas obtained by the association of two in
terdigitated biperiodic coplanar subarrays are presented. One of these
two subarrays is fed, and the other is parasitic. This type of array
is studied for rectangular or triangular patches, using an infinite ph
ased array model for the theoretical approach [1]-[5]. Frequency bandw
idth obtained with this geometry is larger than that of conventional m
onolayer microstrip antennas.