Issue link: https://resources.mouser.com/i/1313794
7 Qorvo 2020 QPQ1905 Wi-Fi/IoT bandBoost ™ Filter QPQ1905EVB-01 Evaluation Board • Increased band edge compliance for more Wi-Fi channels • High power handling to +30dBm averaged Input Power • Low Insertion Loss in Wi-Fi Channels 1 and 2 • Compact laminate 1.6mm x 2.0mm package • Two 50Ω SMA connectors for RF in and RF out • Comes with an example application circuit LEARN MORE > LEARN MORE > Unfortunately, there is a reason that routers today are so big. It's the only way the box can dissipate and get rid of the heat from all the components inside. All the radio communication components inside the box generate heat. Ever watched a movie on your cell phone and felt how hot it gets? The component makers for these boxes are working hard to make their components more efficient, which means they can radiate a lot of Wi-Fi with as little heat as possible. Again, remember that the old idea was maximum raw data rate and the highest (allowed) output power. But the new goal is using all the available channels with the highest efficiency. This is what makes Wi-Fi 6 a new standard and a big step forward. 2.4GHz or 5GHz? There is one final question of note in this scenario. Assuming an access point in every room, and all the access points talking with the router in the closet over Wi-Fi, what frequency bands are preferred? The reason to ask this question is because 2.4GHz gives better range than 5GHz. So, a logical choice would be to use 2.4GHz as the "backbone" and 5GHz as the connection between the access point and the end device. There is a little issue, though. The backbone is supposed to aggregate the traffic, which means that it is supposed to have the higher data rate (performance). In reality, the data rate at 5GHz is higher than at 2.4GHz, in particular because more channels can be "bundled together" in the 5GHz band. However, the range at 5GHz is less, and therefore it is less suitable for a backbone function. So, not surprisingly, you can find products today that have different Wi-Fi system design philosophies. Some have 2.4GHz as a backbone, while others are using 5GHz for that. The industry clearly is not unanimous about this yet. And because indoor radio behavior can be fickle, there might not be an ultimate final solution—other than these distributed Wi-Fi systems configuring themselves based on optimizing the indoor environment, if the systems get smart enough. This configuration can even be made dynamic based on the data consumption requirements in various parts of the distributed Wi-Fi system. This means it would reconfigure itself automatically as it "understands" the complete environment, including negotiating with the neighbors so everyone gets a fair share of the spectrum! For the Wi-Fi 6 user, management of the different channels or signing up to 2.4GHz or 5GHz networks all disappears. Wi-Fi 6 will show itself to the user as one network, with one password. Extended networks or different passwords will be a thing of the past, which makes getting or staying connected becomes very easy. The conclusion is clear— Wi-Fi 6 is not the end of Wi-Fi. It is the start of building even higher-performance systems supporting more users simultaneously and without interference. https://bit.ly/3i67Zb4 https://bit.ly/2DsdKBc