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: 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 provides a resonant cavity antenna and an electronic device, and relates to the communications field. The resonant cavity antenna includes an antenna cavity, a first gap, and a feeding part. At least one edge of a first surface of the antenna cavity is parallel to a long edge of a display of an electronic device, at least one edge of a second surface of the antenna cavity is parallel to the long edge of the display, a plane on which the first surface is located intersects a plane on which the second surface is located. The first gap is disposed on the first surface and/or the second surface, and at least a part of the first gap extends in a direction of the long edge of the display. The feeding part is located inside the antenna cavity, and in contact with none of surfaces of the antenna cavity.