Design of Multilayer Dielectric Cover to Enhance Gain and Efficiency of Slot Arrays

Table 1

Array gain and aperture efficiency.

Array type	Dielectric cover	𝐷𝑆 (mm)	𝐷𝑃 (mm)	Gain (dB)	𝜂𝐴
(a) 6×6	2-layer	148.43	170	24.2 dB	80%
(a) 6×6	2-layer	148.43	190	24.6 dB	70%
(a) 6×6	2-layer	148.43	210	25 dB	64%
(b) 8×8	NO	197.04	210	25.1 dB	65%
(c) 8×8	2-layer	197.04	210	26.4 dB	87%
(c) 8×8	2-layer	197.04	240	26.8 dB	73%
(c) 8×8	2-layer	197.04	260	27.1 dB	67%
(d) 10×10	NO	245.69	260	27.2 dB	69%