High mutual coupling reduction between microstrip patch antennas using novel structure

Bandwidth and gain enhancement of triple‐band MIMO antenna incorporating metasurface‐based reflector for WLAN/WiMAX applications

“…Due to higher mutual coupling between single antenna elements, some of the power between the individual antenna elements gets wasted [5]. There are different methods to lower down the mutual coupling in MIMO antennas such as DGS loadings [6], neutralisation lines [7, 8], split‐ring resonator loadings [9, 10], parasitic configuration loading [11], antennas with multilayer configurations [12, 13], frequency selective surfaces [14, 15], electromagnetic bandgap structures [16], and substrate integrated waveguide [17]. Also, the gain and bandwidth of the MIMO antennas are enhanced by artificial magnetic conductor loadings [18, 19], Fabry Perot metamaterial (MTM) superstrates [20], multilayer metasurface (MS)‐based superstrate [21], MTM inspired hexagonal ring based superstrate [22], epsilon and Mu near to zero MTM superstrates [23], MTM‐based superstrate [24], crossed‐dipole antenna with a small frequency separation ratio applicable for MIMO systems [25], crossed dual‐polarised and dual‐band bowtie dipole antenna combined with an AMC‐based reflector [26], dual‐band MIMO slot antenna with dual‐band AMC loadings [27], and dual‐band MIMO based four‐port array antenna with filtering structures [28].…”

Mutual coupling between antennas in a periodic network using the advanced transverse wave approach for wireless applications

“…Some techniques are explicitly designed to suppress the surface wave. It also includes optimizing the antenna dimensions so that the surface wave is not excited (Li et al, 2018), grooving the dielectric, covering the patch by additional dielectric layers (Gharat and Narwade, 2016), or making the dielectric be a band-gap structure by printing various patterns on it (Emadeddin et al, 2017). A straightforward way to reduce the mutual coupling of monopole antennas on high-impedance ground plane was presented in Lee et al (2015).…”

Mutual Coupling Reduction between Patch Antennas Using Meander Line

“…Microstrip patch antennas are widely used in a lot of applications, such as multiple input and multiple output (MIMO) communication systems. The main advantages of microstrip patch antennas are their low profile, low cost, and ease of manufacture [1][2][3][4]. However, microstrip patch antennas exhibit MC when used as array elements [5].…”