Wireless adapters

A wireless adapter, comprising:

• a housing assembly including an accommodation cavity, the accommodation cavity being formed inside the housing assembly;
• an interface assembly disposed at one end of the housing assembly along a length direction of the wireless adapter;
• an antenna assembly disposed in the accommodation cavity, the antenna assembly being electrically connected to the interface assembly, the antenna assembly including a first antenna and a second antenna, and a plane in which the first antenna is located intersecting with a plane in which the second antenna is located;
• wherein the housing assembly comprises:
• an insulating shell including a first end and a second end opposite to each other along the length direction, the interface assembly being disposed at the first end of the insulating shell;
• and
• an insulating end cap disposed at the second end of the insulating shell, the accommodation cavity being formed between the insulating shell and the insulating end cap, and the second antenna is located on an inner wall of the insulating end cap.