An electronic device, relating to the technical field of antennas. The electronic device includes a frame, a screen, and a circuit board assembly. A part of the frame forms a radiator of an antenna, or the radiator of the antenna is fixed on an inner side of the frame. The circuit board assembly is located on the inner side of the frame. The circuit board assembly includes a first conductive member, and a first board, an elevating board, and a second board sequentially stacked. The first board is located on one side of the second board away from the screen. The first board includes a first main body portion and a first extension portion connected to the first main body portion. The first main body portion is fixedly connected to the elevating board. The first extension portion protrudes relative to the elevating board and the second board, and is disposed close to the radiator.

An electronic device, relating to the technical field of antennas. The electronic device includes a frame, a screen, and a circuit board assembly. A part of the frame forms a radiator of an antenna, or the radiator of the antenna is fixed on an inner side of the frame. The circuit board assembly is located on the inner side of the frame. The circuit board assembly includes a first conductive member, and a first board, an elevating board, and a second board sequentially stacked. The first board is located on one side of the second board away from the screen. The first board includes a first main body portion and a first extension portion connected to the first main body portion. The first main body portion is fixedly connected to the elevating board. The first extension portion protrudes relative to the elevating board and the second board, and is disposed close to the radiator.

A transparent broadband antenna has two conductive leaves that are configured to be axially symmetric about two orthogonal axes. The transparent broadband antenna is designed as having two back-to-back Vivaldi radiators and four identically curved outer corners. The back-to-back Vivaldi radiators provide high performance from 617 MHz through 7 GHz while preventing return waves that may cause impedance mismatch. The antenna further comprises a feed structure that enables direct coupling from an RF cable to the two conductive leads, obviating the need for a matching circuit and subsequent bandwidth limitations.

A transparent broadband antenna has two conductive leaves that are configured to be axially symmetric about two orthogonal axes. The transparent broadband antenna is designed as having two back-to-back Vivaldi radiators and four identically curved outer corners. The back-to-back Vivaldi radiators provide high performance from 617 MHz through 7 GHz while preventing return waves that may cause impedance mismatch. The antenna further comprises a feed structure that enables direct coupling from an RF cable to the two conductive leads, obviating the need for a matching circuit and subsequent bandwidth limitations.

An antenna structure is applicable in an electronic device having a metal frame. At least one slot is defined in the metal frame. The antenna structure includes a first radiating portion, a second radiating portion, and an antenna module. The first radiating portion and the second radiating portion are portions of the metal frame. The second radiating portion is separated from the first radiating portion with the at least one slot. The antenna module is spaced from an inner side of the metal frame. A projection of the antenna module is partially overlapping a projection of the first radiating portion or a projection of the second radiating portion in a predetermined direction, the antenna structure excites a plurality of radiation modes. The application also provides an electronic device with the antenna structure.

An antenna structure is applicable in an electronic device having a metal frame. At least one slot is defined in the metal frame. The antenna structure includes a first radiating portion, a second radiating portion, and an antenna module. The first radiating portion and the second radiating portion are portions of the metal frame. The second radiating portion is separated from the first radiating portion with the at least one slot. The antenna module is spaced from an inner side of the metal frame. A projection of the antenna module is partially overlapping a projection of the first radiating portion or a projection of the second radiating portion in a predetermined direction, the antenna structure excites a plurality of radiation modes. The application also provides an electronic device with the antenna structure.

A method for constructing a multifunctional antenna structure configured to generate a plurality of radiation patterns includes determining a desired source field associated with the plurality of radiation patterns, and receiving feed locations for a waveguide to an antenna aperture surface. The method may further include placing a metasurface resonator at a first resonator location that exhibits a minimum error relative to the desired source field and satisfies a maximum error threshold relative to the desired source field. The metasurface resonator may be determined based on the feed locations and a plurality of degrees of freedom for the first resonator location. The method may also include discarding a second resonator location in response to determining that no metasurface resonator at the second resonator location satisfies the maximum error threshold. The plurality of degrees of freedom may include metasurface resonator geometries that exhibit different polarizabilities defined in a candidate library.

A method for constructing a multifunctional antenna structure configured to generate a plurality of radiation patterns includes determining a desired source field associated with the plurality of radiation patterns, and receiving feed locations for a waveguide to an antenna aperture surface. The method may further include placing a metasurface resonator at a first resonator location that exhibits a minimum error relative to the desired source field and satisfies a maximum error threshold relative to the desired source field. The metasurface resonator may be determined based on the feed locations and a plurality of degrees of freedom for the first resonator location. The method may also include discarding a second resonator location in response to determining that no metasurface resonator at the second resonator location satisfies the maximum error threshold. The plurality of degrees of freedom may include metasurface resonator geometries that exhibit different polarizabilities defined in a candidate library.

A self-deployable antenna and/or antenna array that is made up of one or more antenna elements. Each of the antenna elements has a structural base that supports portions of the antenna and can be positioned between a stored configuration for compaction and a deployed configuration for transmitting. The antenna elements and structural base can be part of a base substrate that provides a base support for the antenna and/or antenna array to be compacted and deployed.

A self-deployable antenna and/or antenna array that is made up of one or more antenna elements. Each of the antenna elements has a structural base that supports portions of the antenna and can be positioned between a stored configuration for compaction and a deployed configuration for transmitting. The antenna elements and structural base can be part of a base substrate that provides a base support for the antenna and/or antenna array to be compacted and deployed.