Abstract: Embodiments of this application relate to the field of antennas, and provide a terminal antenna. The terminal antenna includes n radiators. The n radiators include a first radiator, a second radiator, and a third radiator. Lengths of the first radiator, the second radiator, and the third radiator form a descending arithmetic progression. The first radiator, the second radiator, and the third radiator are arranged in sequence to form two gaps. A coupling capacitance formed by the first radiator and the second radiator through the corresponding gap is greater than a coupling capacitance formed by the second radiator and the third radiator through the corresponding gap. The first radiator, the second radiator, and the third radiator are any three of the n radiators distributed in sequence.

Abstract: Embodiments of this application disclose an antenna power control method and an electronic device. The specific solution is: obtaining, by a first sensor, statuses of at least two detection channels, where each of the detection channels corresponds to one status, the status is any one of a first state and a second state, the first state indicates that a value of capacitance between an antenna corresponding to the detection channel and a human body is greater than a first threshold, and the second state indicates that the value of the capacitance between the antenna corresponding to the detection channel and the human body is less than the first threshold; determining, by a first driving module, a first range value based on the statuses of the at least two detection channels; and controlling, by the processor, transmit power of the at least two antennas based on the first range value.

Abstract: This application provides an antenna decoupling structure, a MIMO antenna, and a terminal. The antenna decoupling structure includes a grounding stub and a capacitor structure, where a first end of the grounding stub is connected to an antenna floor, to form an equivalent inductor; and a first end of the capacitor structure is connected to the antenna floor, and a second end of the capacitor structure is connected to a second end of the grounding stub, so that the equivalent inductor and the capacitor structure form an LC resonant structure, where a parameter corresponding to the LC resonant structure meets a decoupling requirement for at least one target decoupling frequency band. Because the resonant frequency depends on the inductance and the capacitance that correspond to the LC resonant structure, antenna miniaturization can be realized by reducing a size of each portion of the decoupling structure.

Abstract: A terminal antenna and an electronic device, which relate to the field of antenna technologies. By adding a choke structure, optimization of a maximum gain of an original antenna is implemented, and in addition. A specific solution is as follows: the terminal antenna includes a first radiator and a second radiator. a first end of the first radiator is provided with a feed, and a second end of the first radiator is connected to a reference ground; the first radiator is provided with a gap that runs through the first radiator, the gap is in an interdigitated structure, and there are at least two gaps; and the second radiator is arranged on a side of the first radiator, the second radiator is L-shaped, the second radiator and the reference ground enclose an inverted L-shaped first gap.

Abstract: A MIMO antenna system related to the field of antenna technologies. A specific solution includes: The MIMO antenna system includes a first antenna and a second antenna, the first antenna includes a first radiator and a second radiator, the first radiator is in a ring structure, the second radiator is disposed inside the first radiator. A first feed is further disposed on the first antenna, and one end of the first feed is disposed on the first radiator and the second radiator. The second antenna includes a third radiator, the third radiator is in a ring structure, a penetration slot is disposed on the third radiator. A second feed is further disposed on the third radiator. The first antenna is disposed inside the second antenna and they are not connected to each other.

Abstract: This application relates to the field of communication device technologies, and provides a wireless router and a control method thereof, to resolve a problem of how to improve application universality of the wireless router. The wireless router includes an omnidirectional antenna, a directional antenna, and a driving apparatus. The driving apparatus is connected to the directional antenna, the driving apparatus is configured to drive the directional antenna to rotate, so that a beam direction of the directional antenna coincides with a direction of a target beam in a beam lookup table, and the target beam is capable of covering a target device. The beam lookup table includes a set formed by beams when the directional antenna rotates to a plurality of different orientations under driving of the driving apparatus. The wireless router provided in this application is used for wireless coverage of a house building.

Abstract: A terminal antenna includes a first radiator. The first radiator includes N radiating elements connected end to end, where N is an integer greater than or equal to 2. One end of any one of the radiating elements is grounded through a reactance element. The N radiating elements include a first radiating element, and a feed is arranged at one end of the first radiating element away from the reactance element.

Abstract: Embodiments of this application disclose an antenna power control method and an electronic device. The specific solution is: obtaining, by a first sensor, statuses of at least two detection channels, where each of the detection channels corresponds to one status, the status is any one of a first state and a second state, the first state indicates that a value of capacitance between an antenna corresponding to the detection channel and a human body is greater than a first threshold, and the second state indicates that the value of the capacitance between the antenna corresponding to the detection channel and the human body is less than the first threshold; determining, by a first driving module, a first range value based on the statuses of the at least two detection channels; and controlling, by the processor, transmit power of the at least two antennas based on the first range value.

Abstract: This application provides a terminal antenna, including a first radiator, a second radiator, a third radiator, a first tuning circuit, and a second tuning circuit. The third radiator includes a low frequency radiator and a medium-high frequency radiator. The first tuning circuit is configured to adjust a frequency of a resonance of a ¾? mode of a medium-high frequency produced by the low frequency radiator to be less than a frequency of a resonance of a left-handed antenna mode. The second tuning circuit is configured to adjust the frequency of the resonance of the left-handed antenna mode to be greater than the frequency of the resonance of the ¾? mode of the medium-high frequency produced by resonating by the low frequency radiator. Values of both the first distance and the second distance are less than 1/16? of a frequency band in which the third radiator produces a low frequency.

Abstract: Embodiments of this application disclose a terminal antenna, and relate to the field of antenna technologies. The terminal antenna includes a first radiator and a second radiator, the first radiator is in a ring structure, the second radiator is disposed inside the first radiator, the first radiator and the second radiator are not directly connected, and the first radiator and the second radiator are located on a same plane. The terminal antenna further includes at least two inductor components, one end of the inductor component is connected to the first radiator, and the other end of the inductor component is connected to the second radiator. A feed is further disposed on the terminal antenna, one end of the feed is disposed on the first radiator, and the other end of the feed is disposed on the second radiator.

Abstract: This application provides an antenna system related to the field of terminal technologies. The system includes: a radio frequency chip, a controller, and a plurality of antennas, where the radio frequency chip is connected to the plurality of antennas: a first antenna, a second antenna, . . . , and an Nth antenna by a power amplifier and switches, where the first antenna is a to-be-improved antenna, an ith antenna is an auxiliary antenna; and the controller determines that a frequency band in which an antenna of the wireless communication device operates belongs to a preset to-be-improved frequency band of the first antenna; determines whether the ith antenna operates; and sets a load status of a radio frequency input end of the ith antenna and adjusts a switch or Tuner state on the ith antenna side when the ith antenna does not operate.

Abstract: Embodiments of this application are applicable to the field of antenna technologies, and provide an antenna and an electronic device. The antenna includes a first resonant cavity and a feed. The first resonant cavity includes a first slot and a second slot, the first slot is provided on a first plane in the first resonant cavity; the second slot is provided on a second plane that is in the first resonant cavity and that is adjacent to the first plane, and the first plane and the second plane are perpendicular to a plane on which the metal backplane is located; and the feed is disposed in the first resonant cavity for feeding the antenna. By using the antenna provided in the embodiments of this application, signal coverage in front of a screen of the electronic device can be increased.

Abstract: Embodiments of this application disclose a terminal antenna and an electronic device, and relate to the field of antenna technologies, which can better cover a medium-high frequency band, provide a good bandwidth and good radiation performance, reduce hardware costs, and have a good SAR, thereby better supporting a wireless communication function of the electronic device. A specific solution is as follows: The terminal antenna includes: a first radiator, a feed point, and a ground point. One end of the first radiator is grounded by using the ground point, and the other end of the first radiator is provided with the feed point. The first radiator is further provided with a slot that penetrates the first radiator, the slot is of an interdigital structure, and there are at least two slots.

Abstract: This application discloses a multi-antenna system and a wireless communication device. The multi-antenna system includes a first antenna, a second antenna. A first extension branch is close to the second antenna, and a second extension branch is close to the first antenna. A feed of the first antenna is disposed on the first radiator, and a feed of the second antenna is disposed on a second radiator. A feed of the third antenna is disposed at the first extension branch. There is a spacing between the first extension branch and the second extension branch. An equivalent circuit of the spacing includes a distributed capacitor. The distributed capacitor is configured to isolate signal coupling between the first antenna and the second antenna when a first resonant frequency of the first antenna and a second resonant frequency of the second antenna are within a preset frequency range.

Abstract: A Wi-Fi and Bluetooth combined antenna apparatus and a configuration method therefor, and a terminal device. The Wi-Fi and Bluetooth combined antenna apparatus includes a Wi-Fi antenna, a ground plate, a perturbation unit, and a Bluetooth antenna. The Wi-Fi antenna generates a ground plate current on the ground plate; the perturbation unit is configured to generate a reverse current after being excited by the ground plate current, and a current zero point area is formed on the ground plate after the reverse current is superimposed with the ground plate current; and the Bluetooth antenna is disposed at a position of an edge of the ground plate corresponding to the current zero point area. In this way, isolation between the Bluetooth antenna and the Wi-Fi antenna is better improved.

Abstract: An antenna combination system and a terminal device. The antenna combination system includes a first antenna and a second antenna having a distance less than a first preset threshold. The first antenna includes a first radiation branch and a first feed point, a feed point of the second antenna is arranged on a side away from the first feed point, and a side of the first radiation branch away from the first feed point is grounded. The first feed point is arranged on a side close to the second antenna, and the length of the first radiation branch is an odd multiple of (½)?. In a case that the second antenna transmits a signal in a first frequency band, a first signal and a second signal that cancel each other are coupled from the second antenna to the first antenna.

Abstract: Embodiments of this application disclose a terminal antenna and an electronic device, and relate to the field of antenna technologies, which can better cover a medium-high frequency band, provide a good bandwidth and good radiation performance, reduce hardware costs, and have a good SAR, thereby better supporting a wireless communication function of the electronic device. A specific solution is as follows: The terminal antenna includes: a first radiator, a feed point, and a ground point. One end of the first radiator is grounded by using the ground point, and the other end of the first radiator is provided with the feed point. The first radiator is further provided with a slot that penetrates the first radiator, the slot is of an interdigital structure, and there are at least two slots.

Abstract: Embodiments of this application provide a low-SAR antenna and an electronic device, which relates to the field of electronic devices and can provide good radiation performance at middle/high frequencies and have a low SAR value. The specific solution is as follows. A first radiation structure includes a first radiator, and a second radiation structure includes a second radiator. A first end of the first radiator and a first end of the second radiator form a first gap. A second end of the first radiator is free, and a second end of the second radiator is grounded. A feed point of the antenna is coupled to the first radiator, and the first radiator is divided into a first portion and a second portion that are delimited by the feed point. In a case that the antenna is in operation, the first portion of the first radiator and the second radiator work together in a first frequency band and a second frequency band, and a frequency of the first frequency band is less than a frequency of the second frequency band.

Abstract: An antenna apparatus includes a grounding plate, a monopole, a first feeding component, and a second feeding component. A slot on the grounding plate includes a first slot and a second slot that interpenetrate each other, the second slot extends from the first slot to an edge of the grounding plate. The monopole includes a first stub and a second stub extending from the first stub to the second slot, the second stub and the second slot form a feeding structure. The first feeding component is electrically coupled to the grounding plate to feed the feeding structure to excite a first radiation mode of the antenna apparatus. The second feeding component is electrically coupled to the second stub to feed the feeding structure to excite a second radiation mode of the antenna apparatus. Polarizations in the two radiation modes are orthogonal.

Abstract: A terminal comprises a printed circuit board (PCB), a PCB floor, and a rear cover. The metal frame is disposed at edges of the PCB floor. The PCB floor is disposed between the PCB and the rear cover, and the PCB floor is used to ground electronic components. The antenna apparatus may include a split antenna formed by a split provided on the metal frame, and a slot antenna formed by a slot connecting to the split. The slot may be connected to the split at a middle position on one side of the slot, and the slot may be provided on the metal frame of the terminal or on a PCB floor of the terminal.