ANTENNA COMBINATION SYSTEM AND TERMINAL DEVICE

Embodiments of this application are applicable to the field of antenna technologies, and provide 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)λ. 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. In other words, in a case that the distance between the first antenna and the second antenna is relatively small, mutual interference between signals of the first antenna and the second antenna in the first frequency band can be reduced by using the antenna combination system provided in this embodiment of this application, thereby increasing the degree of isolation between the first antenna and the second antenna.