A system having a radiating element is disclosed. The radiating element may include a plurality of higher order floquet mode scattering (HOFS) layers including at least a lowest layer unit cell, a middle layer unit cell, and a highest layer unit cell. The radiating element may also include a stripline feed layer having a ground plane layer. The ground plane layer is configured in at least one of a non-equilateral triangular grid unit cell or an equilateral triangular grid., one or more horizontal and vertical polarization stripline feeds, one or more horizontal and vertical polarization ground plane slots, and one or more ground vias to create an evanescent waveguide for resonance free stripline to radiating element coupling. The radiating element may be dual-polarized aperture coupled with an active electronically scanned array (AESA) in a manner so as to enable the AESA to electronically steer a beam of radio waves to point in different directions without moving the AESA and radiate beams of radio waves at multiple frequencies simultaneously.

A system having a radiating element is disclosed. The radiating element may include a plurality of higher order floquet mode scattering (HOFS) layers including at least a lowest layer unit cell, a middle layer unit cell, and a highest layer unit cell. The radiating element may also include a stripline feed layer having a ground plane layer. The ground plane layer is configured in at least one of a non-equilateral triangular grid unit cell or an equilateral triangular grid., one or more horizontal and vertical polarization stripline feeds, one or more horizontal and vertical polarization ground plane slots, and one or more ground vias to create an evanescent waveguide for resonance free stripline to radiating element coupling. The radiating element may be dual-polarized aperture coupled with an active electronically scanned array (AESA) in a manner so as to enable the AESA to electronically steer a beam of radio waves to point in different directions without moving the AESA and radiate beams of radio waves at multiple frequencies simultaneously.

Embodiments of the present disclosure are directed to an antenna system and a mobile terminal. The antenna system includes a metal antenna, a radio frequency module, and an antenna tuning switch. The mobile terminal includes the antenna system mentioned above. An embodiment of the present disclosure is capable of improving the stability of sensor detection and prevent the whole machine from being in a state of power reduction for a long time, resulting in signal deterioration.

Embodiments of the present disclosure are directed to an antenna system and a mobile terminal. The antenna system includes a metal antenna, a radio frequency module, and an antenna tuning switch. The mobile terminal includes the antenna system mentioned above. An embodiment of the present disclosure is capable of improving the stability of sensor detection and prevent the whole machine from being in a state of power reduction for a long time, resulting in signal deterioration.

The present invention provides an antenna structure, including a frame body, a first feed-in part, and a first connection part, where the frame body is at least partially made of a metal material, the frame body includes a first part and a second part, the second part is connected to one end of the first part, a length of the second part is greater than a length of the first part, a first slot is provided in the first part, a second slot is provided in the second part, a part of the frame body between the first slot and the second slot forms a first radiation part, the first feed-in part is disposed on the first radiation part and located on the first part of the frame body. The antenna structure can effectively improve low band radiation performance.

The present invention provides an antenna structure, including a frame body, a first feed-in part, and a first connection part, where the frame body is at least partially made of a metal material, the frame body includes a first part and a second part, the second part is connected to one end of the first part, a length of the second part is greater than a length of the first part, a first slot is provided in the first part, a second slot is provided in the second part, a part of the frame body between the first slot and the second slot forms a first radiation part, the first feed-in part is disposed on the first radiation part and located on the first part of the frame body. The antenna structure can effectively improve low band radiation performance.

An apparatus is disclosed for controlling a power amplifier that is coupled to an antenna element of an antenna array. In example implementations, an apparatus includes an antenna element of an antenna array and a power amplification system. The power amplification system includes at least one input node, at least one output node coupled to the antenna element, and at least one power amplifier branch coupled between the at least one input node and the at least one output node. The power amplification system also includes at least one feedback node coupled to the at least one output node, at least one control node, and a feedback control loop coupled between the at least one feedback node and the at least one control node.

An apparatus is disclosed for controlling a power amplifier that is coupled to an antenna element of an antenna array. In example implementations, an apparatus includes an antenna element of an antenna array and a power amplification system. The power amplification system includes at least one input node, at least one output node coupled to the antenna element, and at least one power amplifier branch coupled between the at least one input node and the at least one output node. The power amplification system also includes at least one feedback node coupled to the at least one output node, at least one control node, and a feedback control loop coupled between the at least one feedback node and the at least one control node.

A feed network includes an adjustable electromechanical phase shifter that comprises a main printed circuit board and a phase shifting unit. The adjustable electromechanical phase shifter is configured to shift the phase of an RF signal that is input to the feed network and provide the phase shifted RF signal to at least one radiating element that is positioned on a first side of a reflector of an antenna, where the phase shifting unit is formed on the surface of a first side of the main printed circuit board, and the first side of the main printed circuit board is a side that is closer to the at least one radiating element, and the main printed circuit board is positioned on the first side of the reflector.

A feed network includes an adjustable electromechanical phase shifter that comprises a main printed circuit board and a phase shifting unit. The adjustable electromechanical phase shifter is configured to shift the phase of an RF signal that is input to the feed network and provide the phase shifted RF signal to at least one radiating element that is positioned on a first side of a reflector of an antenna, where the phase shifting unit is formed on the surface of a first side of the main printed circuit board, and the first side of the main printed circuit board is a side that is closer to the at least one radiating element, and the main printed circuit board is positioned on the first side of the reflector.