The router antenna is built-in or external, so there is no need to worry.

WiFi 6 wireless routers are being upgraded and replaced. If you open an e-commerce website, you can see that the hot-selling products are basically all WiFi 6 routers. Moreover, many new products have built-in antennas, and their designs are increasingly integrated into the home environment.

When buying wireless routers, many consumers focus on the antenna, thinking that wireless signals are closely related to wireless antennas. The more antennas, the better; the longer the antenna, the better; external antennas are better than internal ones... Stop it now, who spreads this wrong information? I'm really worried about them.

Facing our compatriots with big braids, wireless routers with built-in antennas are crying. The focus of everyone's attention is always the one with the most braids, but in fact, we have quite a few built-in antennas! They are not as good-looking as us, and their designs are not as beautiful as ours, so why are we still the losers?

To correct people's misconceptions, we must first talk about the factors that affect the strength of wireless signals. Why do we need to design multiple antennas? This is because of the use of MIMO transmission technology. It is precisely because of this technology that our wireless transmission is getting faster and faster.

MIMO Technology Principles

The use of MIMO transmission technology requires the support of multiple antennas. The router can divide the data into multiple parts and send them from different antennas, and then integrate them at the receiving end. Taking 2x2MIMO as an example, it is like two people working at the same time, doubling the original work efficiency, increasing the wireless rate and significantly improving the communication quality. In this way, the user's intuitive feeling is that the more antennas there are, the better the wireless signal and transmission. In fact, it is the "multiple input and multiple output" of MIMO that makes multiple antennas play a powerful role.

Wireless transmission power affects signal strength

In addition to the transmission technology, the decisive factor for the quality of the wireless router signal is actually the transmission power of the wireless router. All countries have regulations on the transmission power of wireless routers, which generally shall not exceed 100mW, that is, 20dBm (2.4GHz frequency band). So we can see that, in fact, according to national standards, the signal strength of the transmitter is fixed. In summary, the signal strength has nothing to do with whether the wireless antenna is external or internal, so don't be prejudiced!