Mutual Coupling Reduction in a T/R Array with T-Resonate Cavity EBG (TRC-EBG)

Comparative analysis of antenna isolation characteristic with & without self‐interference reduction techniques towards in‐band full‐duplex operation

“…There are many researchers who have proposed EBG structures with different dimensions and shapes available in the literature. For general visualisation, Figure 6 shows mushroom type EBG structure between the antennas [11][12][13][14][15][30][31][32][33][34][35][36][37][38][39][40].…”

“…Decoupling methods are divided into several techniques as: utilisation of the special metamaterial (MTM) between antenna elements [11–22]; defected ground structure (DGS) technique [11–15, 23–29]; electromagnetic bandgap structure (EBG) [11–15, 30–40]; de‐coupling‐Network (DN) [11–15, 41–46]; Neutralisation‐Lines‐(NL) [11–15, 47–49]; parasitic structure, shorting pin, and slot structures (PS,SP,SS) [11–15, 50–57]. The main focus of this paper is to review these different techniques and to compare their results in order to observe the impact on the isolation, gain and bandwidth of/between adjacent antenna elements.…”

“…Decoupling methods are divided into several techniques as: utilisation of the special metamaterial (MTM) between antenna elements [11][12][13][14][15][16][17][18][19][20][21][22]; defected ground structure (DGS) technique [11][12][13][14][15][23][24][25][26][27][28][29]; electromagnetic bandgap structure (EBG) [11][12][13][14][15][30][31][32][33][34][35][36][37][38][39][40]; de-coupling-Network (DN) [11][12][13][14][15][41][42][43][44][45][46]; Neutralisation...…”

Reduction of mutual coupling in a microstrip array antenna with circular polarization in the C-frequency band using a combination of DGS and EBG methods

“…This coupling causes changes such as changes in the radiation beam of the arrays, changes in the input voltage of the arrays, changes in the matching properties of the antennas, changes in the input impedance, and the creation of blind spots [11]. To date, various strategies have been considered to reduce coupling [12][13][14][15][16][17][18][19][20], including split-ring resonators (SRRs) [13], electromagnetic bandgap structures (EBGs) [14,15], frequency selective surfaces (FSSs) [16,17], defected ground structures (DGSs) [18], and photonic bandgap structures (PBGs) [19,20]. To produce circular polarization, many structures with different properties have been proposed [21].…”