Mutual coupling reduction and miniaturization arrays antennas using new structure of EBG

Mutual Coupling Reduction of Two 2x1 Triangular-Patch Antenna Array Using a Single Neutralization Line for MIMO Applications

“…The proposed topology and the presented method of decoupling both array antennas obtain similar or better results compared to those shown in [5], [15], achieving higher gain with smaller footprint, using less radiating elements, but with an easier design and implementation.…”

“…The squared-patch array presented in [15] occupies a large footprint, an undesired situation in mobile terminals. The occupied space can be reduced by interlacing two identical antenna arrays, with the same dimensions calculated in Sec.…”

“…MIMO communications systems that employ antenna array are as conceivable and pertinent as investigations about techniques to diminish the electromagnetic interaction among an ensemble of such antennas. For instance, in [15] two 2  2 rectangular-patch array antennas were decoupled by inserting between them two lines of mushroom EBG's. The article reports a reduction of their mutual coupling around 26 dB.…”

“…The decoupling method used in this work is easier to design and perform than the presented in [15], not affecting negatively the gain radiation pattern, and has a small footprint.…”

Three‐layered circular patch antennas array with UC‐PBG for wider bandwidth and surface wave propagation mode attenuation at X‐band

“…This alignment improves the antenna efficiency by reducing the surface waves within the substrate. The effects produced by such structures can be observed through the reduction of the mutual coupling between two antennas, as well as making the level of the S11 parameter deeper, among others like increasing the gain and improving the bandwidth. Uniplanar Compact Photonic Bandgap (UC‐PBG) offers versatility in controlling the surface propagation of electromagnetic waves.…”