Communication device and head-mounted display device

A communication device, adapted to be disposed in a head-mounted display device, wherein the head-mounted display device comprises a display unit, a casing, and a top headband, the display unit is connected to the casing through the top headband, and the communication device comprises:

• a communication circuit, disposed at the casing;
• an antenna assembly, comprising at least one first antenna and a second antenna, wherein the at least one first antenna is disposed at the casing and is electrically connected to the communication circuit, and the second antenna is disposed at the top headband;
• and
• a transfer module, comprising a connecting wire assembly, a transfer element, and a transfer wire assembly, wherein the transfer wire assembly is electrically connected to the transfer element and the second antenna, one end of the connecting wire assembly is connected to the communication circuit, the other end of the connecting wire assembly is connected to the transfer element to be electrically connected to the second antenna, the connecting wire assembly comprises two radio frequency (RF) signal wires and a power signal wire, and a power loss per unit length of the two RF signal wires is less than a power loss per unit length of the transfer wire assembly.