Design of a Transparent System for Mutual Coupling Reduction of Microstrip Array Antennas with Confined Water

Abstract

Herein, a new method for minimizing mutual coupling of an antenna array with confined water is proposed. In multiantenna systems, mutual coupling reduction is needed to sustain array signal processing efficiency. There are currently a variety of ways to suppress coupling, including defected ground, electromagnetic (EM) bandgaps, and advanced structures. The water absorption characteristic is devised in this innovative approach to minimize mutual coupling without a permanent alteration in the structure. Surface current between two antennas is cancelled using permittivity and water depth in a new configuration. A plexi‐glass confined water is added between the propagating elements to achieve this aim. The rectangular microstrip patch of transparent conducting components serves as the antenna array. Using scattering theories, numerical EM calculations, and anechoic chamber tests, the suggested technique shows a 15 dB decrease in coupling at center frequency (7 GHz). Other propagating functions have also been improved. The suggested framework can be used in multifunction communication networks, aerial vehicle antennas, solar panels, and naval communications because of its optical transparency.

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

“…Envelope Correlation Coefficient (ECC) is an important merit for any active multi-input multi-output (MIMO) antenna system that can be measured and calculated using complex patterns (equations ( 8) and ( 9)) [50]. The comparative diagram in figure 14 shows the ECC diagram before and after the placement of the EBG and DGS structures, which shows the improvement of the diagram after the placement of the EBG and DGS structures compared to before the placement of the EBG and DGS structures.…”

Mutual coupling in the antennas

“…The procedure involves minimizing mutual coupling between two elements by introducing a liquid dielectric, specifically distilled water, between the components of an antenna array. The future potential of this technique to suppress crosstalk holds promise for diverse applications such as the integration of solar panels and energy harvesting with electromagnetic structures [6,7], transparent electromagnetic structures [8], and low radar cross-section (RCS) devices [9][10][11]. The ensuing sections outline the primary specifications of this device, emphasizing its applicability in air and marine environments:…”

Design and fabrication of a super-wideband transparent antenna implanted on a solar cell substrate

“…EEC is an important point of strength for every MIMO antenna 40 . This measure can be computed using complex patterns (Eqs.…”