Development of Multilayer Partially Reflective Surfaces for Highly Directive Cavity Antennas: A Study

Table 1

Specifications of the PRS unit cells.

Parameter		Dimensions (mm)
Periodicity	P	14.56
Inner square side of PRS1	S	4.56
Sides of outer loop of PRS1 and inner square of PRS2	S1	8.56
Slot length of PRS2	S2	10.56
Loop length of PRS2	S3	13.56
Slot gap		1
Strip width		1
Lower cavity height	h1	32.1
Upper cavity height	h2	30