With all of the praise given to our AC5300 Ultra Series Wi-Fi Router and its devilishly good looks, we thought we ought to take a moment to talk antennas.

You may have noticed that some routers have more antennas than others. D-Link’s DIR-895L has 8 long antennas while the DSL-2750U only has 2 relatively short antennas. Is more really more? How do these high performance external antennas help to keep your devices connected?


Antenna Configurations

Whether you can see them or not, all Wi-Fi routers have transmit and receive antennas to communicate wirelessly over a radio channel with your laptops, smartphones and other connected devices.

Various antenna configurations are available such as 1x1 SISO (single input/single output) which means it is only capable of transmitting and receiving over one radio channel. There is also SIMO (single input/multiple output), MISO (multiple input/single output) and MIMO (multiple input/multiple output) configurations. Here’s a visual:

Things to Note

Not only routers have transmit and receive antennas. Wireless clients such as phones often only support 1x1 and thus the 

number of spatial streams utilized will be limited by the device with the lowest number of supported signals. But even though your phone won’t be able to fully utilize 3x3 MIMO on its own, all your devices will benefit from increased wireless speed and reliability because your router will be able to support multiple devices at the same time instead of just one at a time.

So upgrading to a 3x3 Router like the DIR-890L AC3200 Ultra Series Wi-Fi Router is still a great way to connect your entire home at the fastest possible speeds.

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