Two-Step Decoupling Design of a Microstrip Antenna Array by Using Waveguided Complementary Split-Ring Resonators and a Fully Connected Neural Network

Table 2

Comparison of the proposed antenna array with previous decoupling works.

References	Decoupling approach/profile (mm^2)	Edge-to-edge distance (mm)	Max. Isolation improvement (dB)	Design complexity	Radiation pattern deterioration
[2]	DGS/128.2 × 14.6	0.2λ0	30	Low	No
[3]	DGS/130 × 130	0.19λ0	15	Moderate	No
[4]	EBG/55 × 28	0.11λ0	18	High	Yes
[5]	FSS/20 × 16	0.5λ0	10	Moderate	—
[9]	DN/80 × 60	0.056λ0	24	Moderate	Yes
[10]	WG-MTM/76.4 × 91	0.125λ0	20	Moderate	No
[22]	WG-MTM/35 × 69.5	0.11λ0	10	Moderate	No
Prop.	WCSRRs/(in Figure 1)	0.24λ0/0.21λ0/0.18λ0	30	Low	No