Design of Miniaturized and Polarization-Insensitive Double-Layer Frequency Selective Surface Based on Meander Lines

Table 1

Performance comparison.

Reference	Substrate thickness (mm)	Dielectric constant	Unit cell size	Operating band	Frequency shift under	Polarizations
[18]	1.6	4.4		Double	1%, 60°	TE, TM
[19]	1.6	4.3		Single	2%, 75°	TE, TM
[20]	0.8	4.4		Double	0.9%, 75°	TE, TM
[21]	1.6	4.4		Double	1%, 85°	TE, TM
[22]	0.5	2.65		Double	-	TE, TM
This work	1	4.4		Double	0.9%, 60°	TE, TM