Dual Band WiFi meaning | Dual Band WiFi Router

This page covers meaning of dual band wifi and mentions popular dual band wifi router vendors. The dual band wifi device operates on two bands viz. 2.4 GHz and 5 GHz.

As we know that wifi is the term which stands for wireless fidelity. The wifi products and network are based on wireless LAN (WLAN) standards. It is defined in IEEE 802.11 series. There are various versions of WLAN or wifi standard viz. 802.11a,11b,11g,11n and 11ac. Each supports different data rates and distances.

Dual Band WiFi

In WiFi, 802.11a devices support 5 GHz band, 802.11b and 11g support 2.4 GHz band, 802.11n and 11ac support both 2.4 GHz and 5 GHz bands.

Hence if you would like to purchase dual band wifi router, check the support of 802.11 standards. There should be "11n" or "11ac" printing on the device or device box. Check the same for wifi dongle also. 11n and 11ac provide higher data rates compare to 11a/11b/11g.

The figure-1 depicts dual band wifi SoC connections with RF front end components viz. LNA, PA, Switch, Diplexer and Antenna. Here LNA is used in receive chain and PA is used in transmit chain. There are two separate paths for 2.4 GHz and 5 GHz chains.

Dual Band WiFi Router Vendors

wifi router

The figure-2 depicts wifi router from Linksys. Following table mentions popular dual band wifi router vendors. Almost all dual band wifi router supports 802.11n standard in which data rate or speed of 600 to 900 Mbps can be achieved. This is higher than 54 Mbps supported by 802.11g and 11 Mbps supported by 802.11b.

Manufacturer or vendor Description
D-Link Model No: DIR-816
TP-Link TL-WR940N
Linksys E900
XIAOMI Mi WiFi Router 3


WiFi Booster  WiFi USB adapter  WiFi AP  WiFi internet  WLAN tutorial  What is wlan?   WLAN standards-11a,11b,11g,11n,11ac  11a WLAN Physical layer   11b WLAN Physical layer   11n WLAN Physical layer   WLAN 802.11-ac   WLAN 802.11-ad   Difference between 11a,11b,11g,11n   WLAN router providers  WLAN providers 

RF and Wireless Terminologies