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RF upgrade to the 5G era

From 3G to 4G, and then from 4G to 5G, RF engineers have fundamentally reshaped the wireless signaling and transmission architecture of the RF front end, adding major functions such as carrier aggregation, high-order modulation and multiple-input multiple-output antennas.

By integrating more wireless spectrum to improve wireless connectivity and performance overall, RF design in mobile devices has become quite complex.

The commercial use of 4G has fundamentally changed the RF design of mobile communications.

The advent of the 5G era has deepened the challenges of RF design.

The combination of more 5G frequency bands and the introduction of many new technologies make the design of 5G RF front-end face unprecedented complexity challenges, as well as power consumption and volume constraints.

The communication system from the modem to the antenna is essential.

If there is no RF front-end, the mobile phone will not work, and without an advanced RF front-end, the mobile phone will not be able to achieve global communication.

5G and Wi-if7 need to coexist, RF front-end challenges intensify

The 5G and Wi-Fi 6/7 rates can be greatly improved due to the upgrade of the entire communication system.

In order to improve communication performance, new spectrum is introduced, new technologies are added, more frequencies are used as much as possible, and communication performance is improved with higher efficiency. Finally, wireless transmission can be comparable to the stability, high speed and low delay of wired transmission.

Wi-Fi the frequency of 6E has been increased to 6GHz, the effective bandwidth of Wi-Fi 7 is twice that of Wi-Fi 6, and the available spectrum will be 3 times that of Wi-Fi 6. The design of Wi-Fi RF front-end also faces unprecedented challenges.

In the Wi-Fi 7 era, thanks to wider channels and 4K QAM modulation technology, Wi-Fi were able to obtain faster speeds and lower latency transmissions, and Wi-Fi 7's tri-band connection technology pushed Wi-Fi speeds and experiences to new heights.

The technical challenges posed by the Wi-Fi 7 are all-encompassing, requiring sophisticated solutions from the chip to the antenna to the RF.

5G and Wi-Fi 7 need to coexist, which also makes the design of the RF front end more complicated.

And 5G and Wi-Fi 7 can be concurrent, will be able to provide terminal devices with a more stable and high-speed network connection.