Reconfigurable coupler based on ridge gap waveguide

A reconfigurable coupler based on a ridge gap waveguide, comprising:

• an inverted microstrip line, a ridge gap waveguide, and several reconfiguration components configured to adjust a coupling degree of a coupler, wherein the inverted microstrip line feeds the ridge gap waveguide with power, the inverted microstrip line is located at an upper layer while the ridge gap waveguide is located at a lower layer, the ridge gap waveguide comprises an upper metal layer, a second dielectric layer and a lower metal layer that are arranged from top to bottom, the upper metal layer is in a square shape having a gap at a diagonal, four sides of the upper metal layer are provided with microstrip lines extending outward to the inverted microstrip line respectively, two sides of the gap are each provided with several isolation grooves, the reconstruction components are arranged at the isolation grooves, and the reconstruction components are connected to the upper metal layer and the lower metal layer separately.