Page 209 - Satellite Communications, Fourth Edition

Antennas 189

z
feed

Geometry of a basic
microstrip reflectarray

e , d
r
Example of a 28 GHz microstrip reflectarray
(using variable size patches)

Patterns of 28 GHz reflectarray

−10 Measured
Calculated
−20

−30

−40 −30 −20 −10
28 GHz, 6" square aperture, 784 elements (variable size patches), 25 degree scan angle,
corrugated conical horn feed, G = 31 dB, 51% aperture efficiency
Figure 6.38 An 784 element reflectarray. (Courtesy of D.M. Pozar. Source: www.ecs.
umass.edu/ece/pozar/jina.ppt)