Compact Planar Sparse Array Antenna with Optimum Element Dimensions for SATCOM Ground Terminals

Table 4

Simulation results of three types of arrays.

	Periodic array	Conventional sparse array	High efficiency sparse array
Number of elements	452	270	169
Directivity (dBi)	33.3	31.1	33.2
SLL (dB)	−26.5	−21.6	−24.2
Aperture diameter	362 mm	362 mm	362 mm
Aperture efficiency	73.26%	44.15%	71.60%