The present disclosure provides an antenna circuit and a mobile terminal. The antenna circuit includes: an antenna unit; a switching circuit connection point and a feed point are arranged on the antenna unit; an antenna feed is connected with the feed point; a first tuning circuit is connected with the switching circuit connection point, the first tuning circuit is configured to increase a bandwidth of a single resonant mode in an intermediate-high frequency and/or to tune a resonant frequency in the intermediate-high frequency; wherein a distance from the feed point to the end of the antenna unit is larger than a distance from the switching circuit connection point to the end of the antenna unit.

According to various embodiments of the present invention, an electronic device may comprise: a housing comprising a first surface, a second surface oriented in the direction opposite from the first surface, and a side surface surrounding a space between the first surface and the second surface; a conductive member for forming at least a portion of the side surface; a display seen through the first surface and including a first conductive layer; a printed circuit board disposed to be spaced apart from the display between the display and the second surface in the housing, and including a second conductive layer in which at least a portion thereof faces the first conductive layer; a third conductive layer spaced apart from the display and the printed circuit board, disposed between the first conductive layer and the second conductive layer, and facing the first conductive layer; a support structure comprising a non-conductive plate which is formed between the third conductive layer and the printed circuit board and in which at least a portion thereof is in contact with the third conductive layer; a conductive pattern extending between the third conductive layer and the non-conductive plate and electrically connected to the second conductive layer; and a wireless communication circuit electrically connected to the conductive member and configured to transmit and/or receive an RF signal. Other various embodiments may be possible.

An electronic device is provided. The electronic device includes a communication circuit including at least one antenna, a memory, and a processor operatively connected with the communication circuit and the memory. The memory includes instructions, when executed, causing the processor to identify a communication state of the communication circuit, adjust a characteristic of the antenna to a wideband characteristic including a first wireless-fidelity (Wi-Fi) band and a second Wi-Fi band by means of the communication circuit to scan a Wi-Fi communication channel, when the identified communication state is a state where the Wi-Fi communication channel is scanned, and adjust the characteristic of the antenna to a narrowband characteristic corresponding to a determined communication channel to perform Wi-Fi communication, when the identified communication state is a state where the Wi-Fi communication channel to communicate is determined.

An antenna structure and a wireless communication device having the antenna structure are provided, the antenna structure includes a metal frame, a feeding portion, a first ground portion, and a second ground portion. The metal frame defines a first gap, a second gap, and a third gap, the metal frame between the first gap and the second gap forms a first radiating portion, the metal frame between the first gap and the third gap and the metal frame on a side of the third gap cooperatively form a second radiating portion, the metal frame on a side of the second gap forms a third radiating portion. The feeding portion is connected to the first radiating portion. The first ground portion is apart from the feeding portion and connected to the first radiating portion. The second ground portion closes to the second gap and is connected to the third radiating portion.

A mobile computing device including a modal antenna is disclosed. The mobile computing device may include a radio frequency circuit and a modal antenna mechanically coupled to a portion of the mobile computing at a location that is remote from the radio frequency circuit. The modal antenna may include a driven element and a parasitic element positioned proximate to the driven element. The modal antenna may be operable in a plurality of different modes. Each mode may be associated with a different radiation pattern. The mobile computing device may include a transmission line coupling the radio frequency circuit to the modal antenna. The radio frequency circuit may be configured to transmit an RF signal over the transmission line to the modal antenna and configured to communicate a control signal to adjust the mode of the modal antenna over the transmission line.

An electronic device is provided. The electronic device includes a first housing structure including a first side surface member, a second housing structure including a second side surface member, a hinge structure configured to rotatably connect the first housing structure and the second housing structure and configured to provide a folding axis on which the first housing structure and the second housing structure rotate, and at least one printed circuit board, wherein the first side surface member or the second side surface member includes a first side surface portion a second side surface portion, a third side surface portion, a fourth side surface portion, a fifth side surface portion, a first slit a second slit a third slit, and a fourth slit, and a fifth slit, and wherein at least part of at least one of the second side surface portion, the third side surface portion, and the fourth side surface portion is formed of a radiation conductor and is electrically connected to the at least one printed circuit board.

Disclosed are a dynamic antenna group and a terminal device including the same. The dynamic antenna group may be applied to a terminal device, and include: at least two antenna radiators; and a coupling radiator, coupled with the at least two antenna radiators, a tuning component is arranged between the coupling radiator and an electrical ground.

An electronic device is provided. The electronic device includes a housing, a circuit board disposed in the housing and receiving a communication module, an antenna assembly disposed in the housing and including an antenna pattern electrically connected with the communication module and a ground pattern, and a conductive plate disposed on the antenna assembly. At least a portion of the ground pattern may be positioned between the antenna pattern and the conductive plate. The conductive plate may be configured to be electrically coupled with the antenna pattern through the ground pattern.

An electronic device is provided. The electronic device includes a housing, a circuit board disposed in the housing and receiving a communication module, an antenna assembly disposed in the housing and including an antenna pattern electrically connected with the communication module and a ground pattern, and a conductive plate disposed on the antenna assembly. At least a portion of the ground pattern may be positioned between the antenna pattern and the conductive plate. The conductive plate may be configured to be electrically coupled with the antenna pattern through the ground pattern.

An antenna structure and a mobile device including the same are provided. The antenna structure is arranged on a metal cover with an opening slot, and includes a radiator, a feeding part, a grounding element, a grounding parasitic element, an extending parasitic element, a substrate, and a matching circuit. The radiator extends along a first direction, and the feeding part is connected to the radiator and extends towards a second direction. The grounding parasitic element includes a branch part and a parasitic element body. The branch part extends from a grounding point towards the opening slot. The parasitic element body is connected to the grounding element through the branch part and extends towards a first direction. The extending parasitic element extends along the first direction. The matching circuit is electrically connected to the radiator, the grounding element, the grounding parasitic element, and the extending parasitic element.