Wide bandwidth, high‐gain slot‐loaded rectangular microstrip antennas

Abstract

The effect of slot on patch and on ground plane of rectangular microstrip antenna for effective size reduction, wide bandwidth, and high gain has been presented. A 60.57% of virtual size reduction is achieved by taking ground plane same as that of patch on another similar substrate and by keeping 1-mm air gap between them. Furthermore, 51% of bandwidth and 8.73 dB of gain are achieved by embedding group of slots on the patch, wide slot on the ground plane and by doubling the thickness of substrate.

MIMO antennas with diversity and mutual coupling reduction techniques: a review

“…In this approach, slots in the ground are also used for multi-banding and isolation enhancement. The slots in ground may be in the form of symmetric/asymmetric/square/rectangle shape [148, 149], and in the form of DGS to achieve matching conditions [150].…”

New microstrip radiator feeding by electromagnetic coupling for circular polarization

“…In the first group, the RF power is transferred directly to the microstrip patch through connective elements such as microstrip lines on the radiating face, or by coaxial cables through the ground plane [1] [2]. In contrast, the second group is composed of a proximity couple or an aperture couple between the patch and the feeding line, where the power transfer takes place through electromagnetic coupling [3] [5].…”

Metasurface Reflector (MSR) Loading for High Performance Small Microstrip Antenna Design

“…Recent literatures suggest various promising techniques to overcome the shortcomings of patch antenna associated with bandwidth, gain and radiation efficiencies. Most of the techniques offer the performance enhancement in exchange of complicated structures or methods like array technique, stacking antenna elements in vertically or horizontally, applying magnetic dielectric, engineering the radiating or ground plane, cavity coupled procedure, inclusion of parasitic elements, partial reflective surface, utilization of metamaterial or metasurface structures [ 3 – 8 ].…”

“…Application of electromagnetic coupling through stacking/multi layering/air gap coupling is another conventional way to obtain wide bandwidth and enhanced gain. However, this method increases the overall antenna volume and difficult to construct low profile antenna [ 3 ]. Some researchers have also investigated the utilization of partial reflective surface for improving the antenna performance.…”