The WiFi signal of 2.4GHz and了煙 5GHz dual-band antennas快又 is quite different. Generally,制電 the 2.4GHz and 5GHz dual-band煙的 antennas are independent. To ensu微工re the best WiFi performa坐體nce, keep the antennas of the same fre們腦quency band as far apar志筆t as possible. The ante子也nna layout is then staggered as in the 冷秒picture above.

The 2.4GHz spectrum ran唱訊ges from 2.4GHz to 2.4835GHz, with a to湖草tal bandwidth of 83.5M, divided into 13高物 channels, and each 人家channel is 20M wide. I玩會ts theoretical maximum downlink 媽票bandwidth is 600Mbps.

It can be seen from the figure tha術亮t these 13 channels of the 2會土.4G frequency spectrum overlap謝這 closely and interference is in草老evitable. Note that the 14th 事作channel on the way is not allowed in Ch船樂ina. The interference pro這討blem is also one of 木家the biggest disadvantages of 章木WiFi in the 2.4GHz band.

The 5GHz spectrum ranges from 4.91能熱0GHz to 5.875GHz, and the spectr慢照um bandwidth is much larger than the笑空 2.4GHz band. And there is bas年會ically no interference 公城between 5G spectrum. Its土頻 theoretical maximum downlink bandwidth說員 is 1730Mbps However, the光自 disadvantage of 5G band上現 WiFi is that its high frequency 短得and short wavelength, large signal loss劇購 and weak penetration ability, w腦樂hich results in the sig視這nal coverage below the 2.4G綠放Hz band.

Now that the two are combine議藍d to complement each other, dual-band妹長 routers have emerged. Th森知is not only ensures th謝讀e compatibility of connected畫如 devices, but also takes in要都to account the WiFi co事紅verage and network connection s多窗peed.

The dual-band antenna rou視中ter WiFi has the blessing of MIMO tech身亮nology. Among them, the 2.4GHz band土但 uses 2-4 antennas to achi地姐eve 2x2MIMO mode or even 4x4MI機劇MO, making the wireless rate u南但p to 600Mbps; the 5GHz band us樂關es another 2-4 antenn地關as to achieve 2x2MIMO or 4x4MIMO effect答綠s, making the wireless rate 你姐up to 1730Mbps. Obviously, dual-frequ體見ency antennas are more sec物花ure than single-frequency內見 antennas in terms of signal s人麗tability.