The mystery behind wireless calls on mobile phones

[gavinray]

The mystery behind wireless calls on mobile phones： How do built-in antennas enable communication?

Hello everyone!

As an indispensable tool in our daily life, the wireless calling of mobile phones allows us to keep in touch with friends and family anytime, anywhere. But, can someone explain in detail how communication is achieved through the built-in antenna in our phones?

I'm very curious about this process, and I hope someone with experience can answer it for me.

What radio frequency technology is used in mobile phone calls, such as GSM, 3G, 4G, 5G, etc.? How do these different technologies affect call quality and distance?

I would be very grateful if there are seniors who can share some practical cases or experiences with mobile communication technology. I want to better understand the technical principles behind mobile phone wireless calls through the understanding of actual cases.

 

[PlanarMetamaterials]

Radio isn't exactly cutting-edge technology; there are many sources of information available and the basics haven't changed much since the 1940s, 50s (if not earlier).

What part of the communications system are you interested in knowing about? Specifically the antennas? If so, I would recommend taking a look at some basics: Antenna-Theory, or classic texts such as Balanis' Antenna Theory and Design.