Provided are a negative refraction implementation method using photon-magnon coupling and a control method therefor. The negative refraction implementation method of the present invention is a method of implementing negative refraction based on photon-magnon coupling using a photon-magnon hybrid system, wherein the photon-magnon hybrid system includes a dielectric layer including a first surface, and a second surface opposite to the first surface, a microstrip line disposed on the first surface and extending along a lengthwise direction, a first layer disposed on the second surface to excite a photon mode, and a second layer disposed on the microstrip line to excite a magnon mode, and wherein a negative refractive index signal is obtained due to photon-magnon coupling between the first and second layers.

Provided are a negative refraction implementation method using photon-magnon coupling and a control method therefor. The negative refraction implementation method of the present invention is a method of implementing negative refraction based on photon-magnon coupling using a photon-magnon hybrid system, wherein the photon-magnon hybrid system includes a dielectric layer including a first surface, and a second surface opposite to the first surface, a microstrip line disposed on the first surface and extending along a lengthwise direction, a first layer disposed on the second surface to excite a photon mode, and a second layer disposed on the microstrip line to excite a magnon mode, and wherein a negative refractive index signal is obtained due to photon-magnon coupling between the first and second layers.

The technology described herein is directed towards a reconfigurable intelligent surface (RIS) based on microelectromechanical systems (MEMS) technology, in which MEMS micro-actuators are coupled to unit cells of the RIS. A unit cell's split ring includes a gap into which a laterally moveable metallic insert, of a laterally moveable beam, is inserted or retracted based on controlled voltages applied to MEMS actuators. When actuated, an actuator pushes the inserts attached to the laterally movable beam respect to the split rings' gaps (e.g., of a unit cell subgroup). The amount of lateral displacement of the metallic inserts is based on the voltages applied to the actuators, which changes the structure of the unit cell's geometry, whereby analog-like tuning of the unit cell's characteristics (including phase shift) is obtained. When combined with the voltage-controlled phase shifts of other unit cells of the RIS, beamforming of a reflected incoming electromagnetic wave is achieved.

The technology described herein is directed towards a reconfigurable intelligent surface (RIS) based on microelectromechanical systems (MEMS) technology, in which MEMS micro-actuators are coupled to unit cells of the RIS. A unit cell's split ring includes a gap into which a laterally moveable metallic insert, of a laterally moveable beam, is inserted or retracted based on controlled voltages applied to MEMS actuators. When actuated, an actuator pushes the inserts attached to the laterally movable beam respect to the split rings' gaps (e.g., of a unit cell subgroup). The amount of lateral displacement of the metallic inserts is based on the voltages applied to the actuators, which changes the structure of the unit cell's geometry, whereby analog-like tuning of the unit cell's characteristics (including phase shift) is obtained. When combined with the voltage-controlled phase shifts of other unit cells of the RIS, beamforming of a reflected incoming electromagnetic wave is achieved.

A tuning structure for locking or releasing a tuning rod includes a cover plate, an adjustment member and an elastic element. The cover plate has a mounting hole. The adjustment member is rotatably engaged with a hole wall in the mounting hole. A first through hole is provided at a center of the adjustment member. The tuning rod passes through the mounting hole and the first through hole. The elastic element is disposed in the mounting hole. The tuning rod passes through the elastic element. One end of the elastic element abuts against the regulating member, and the other end of the elastic element abuts against the hole wall. By rotating the adjustment member, the elastic element can lock or release to the tuning rod. The present disclosure also discloses an electronic device having the tuning structure.

A tuning structure for locking or releasing a tuning rod includes a cover plate, an adjustment member and an elastic element. The cover plate has a mounting hole. The adjustment member is rotatably engaged with a hole wall in the mounting hole. A first through hole is provided at a center of the adjustment member. The tuning rod passes through the mounting hole and the first through hole. The elastic element is disposed in the mounting hole. The tuning rod passes through the elastic element. One end of the elastic element abuts against the regulating member, and the other end of the elastic element abuts against the hole wall. By rotating the adjustment member, the elastic element can lock or release to the tuning rod. The present disclosure also discloses an electronic device having the tuning structure.

The present invention relates to a waveguide filter having an enhanced property of a specific passband through cross coupling using a resonator, and can set cross coupling in a limited space by providing a notch post, simplify the complexity of a filter by allowing the properties or strength of the cross coupling to be changed according to the position or form thereof, and implement various filter performances.

The present invention relates to a waveguide filter having an enhanced property of a specific passband through cross coupling using a resonator, and can set cross coupling in a limited space by providing a notch post, simplify the complexity of a filter by allowing the properties or strength of the cross coupling to be changed according to the position or form thereof, and implement various filter performances.

A spherical designer electromagnetic surface plasmon open resonator is provided. The open resonator includes a resonator inner core and a resonator outer shell. The resonator inner core is located in an inner center of the resonator outer shell, and the resonator inner core and the resonator outer shell are coaxial. The disclosure provides a device that implements the superscattering function for incident waves in all incident directions and in all polarization directions, and a spherical open resonator is implemented. The scattering cross section of the disclosure can be more than five times greater than that of a metal sphere of the same size, and the operating frequency can be flexibly designed. By utilizing the characteristic that the scattering cross section of the spherical designer electromagnetic surface plasmon resonator is much greater than its own geometric cross section, the electromagnetic super-scattering device can be implemented.

A spherical designer electromagnetic surface plasmon open resonator is provided. The open resonator includes a resonator inner core and a resonator outer shell. The resonator inner core is located in an inner center of the resonator outer shell, and the resonator inner core and the resonator outer shell are coaxial. The disclosure provides a device that implements the superscattering function for incident waves in all incident directions and in all polarization directions, and a spherical open resonator is implemented. The scattering cross section of the disclosure can be more than five times greater than that of a metal sphere of the same size, and the operating frequency can be flexibly designed. By utilizing the characteristic that the scattering cross section of the spherical designer electromagnetic surface plasmon resonator is much greater than its own geometric cross section, the electromagnetic super-scattering device can be implemented.