What are the essential technologies for 5G smartphones?

alan000345

What are the essential technologies for 5G smartphones? [Copy link]

The introduction of new 5G frequency bands means more antennas must be packed into less space. The number of antennas will increase from 4 to 6 in a typical LTE phone today to 6 to 10 in a 5G smartphone. It becomes increasingly difficult to fit all of these antennas in the limited space available.

Aperture tuning is the primary method for addressing the issues caused by reduced antenna area and reduced efficiency in mobile phones. Enabling smartphones to support an ever-expanding range of frequency bands is critical, especially with the transition to 5G.

Aperture tuning has a significant impact on the efficiency of antennas for both transmitting and receiving communications. Depending on the application, total radiated power (TRP) and total isotropic sensitivity (TIS) can be improved by up to 3dB or more.

The concept of antenna tuning technology is shown in Figure 4. A switch connected between the antenna and ground is used to adjust the resonant frequency of the antenna to match the frequency that the phone is currently using to communicate.

Adding different tuning components (capacitors or inductors) between the switch and the radiating element can be used to further adjust the resonant frequency to support different frequency bands. Figure 4 shows the resonant frequency of the antenna when the switch is open, open, and when an inductor or capacitor is added to the circuit.

In Figure 4, each component is connected to a simple switch to illustrate the concept of aperture tuning. However, in main wireless communication antennas and some other applications, more complex multi-throw switches can be used to connect multiple tuning components and support a wider range of frequency bands.

The above is an introduction to aperture tuning, an essential technology in 5G smartphones. For more information, please see " Aperture Tuning: An Essential Technology in 5G Smartphones ". Are there other necessary technologies? Everyone is welcome to discuss.

okhxyyo

Technology is developing too fast. You may think that things that you can use will soon be eliminated. I haven't used a 5G phone yet, but 6G is already here. Will everyone start to switch to 6G phones by the time I can use a 5G phone?

alan000345

okhxyyo posted on 2020-6-7 15:50 Technology is developing too fast. You may think that things that can be used are facing elimination soon~~ You see, I haven’t used a 5G mobile phone yet, and 6G is already here. Will I wait...

Yes, technology advances too fast.