Wireless routers achieve data transmission via radio frequency (RF) signals, which propagate over the 2.4GHz and 5GHz bands (as well as the 6GHz band supported by Wi-Fi 7). Antennas serve as the bridge for signal transmission and reception between the router and terminal devices such as mobile phones and computers. Traditional routers typically adopt external antennas that are visible to the naked eye, whereas Mesh systems mostly utilize internal antennas that are not visibly apparent from the exterior—yet this does not imply inferior signal quality.