In uno smartphone ci possono essere fino a 30 diverse antenne!

 da  Open access paper: https://ieeexplore.ieee.org/document/10636175

NB IEEE è la più grande associazione USA/Mondo di ingegneri elettronici ...

"Currently, with the improvement of communication requirements and the evolution of communication specifications, the number of antennas in smartphones has reached 20–30 (as depicted in Figure 3), including the following antennas:

• Four antennas for LB (low band): 698–960 MHz;

• Four antennas for MHB (mid- and high-band) MIMO operation: 1710–2690 MHz;

• Four antennas for 5G New Radio (NR) band MIMO operation: 3300–4200 MHz & 4400–5000 MHz;

• Two or more dual-band millimeter-wave AiP antennas: 24.25-29.50 GHz and 37.00-43.50 GHz;

• One or more satellite communication antennas: the operating band is the L- or S-band;

• Two GNSS (global navigation satellite system) antennas: GPS L5 at 1176 MHz and GPS L1 at 1575 MHz;

• Two to four tri-band WiFi (wireless fidelity) and BT (Bluetooth) antennas: 2400–2484 MHz, 5150–5350 MHz, and 5725–5825 MHz;

• One NFC (near field communication) antenna: 13.56 MHz;

• Three UWB (ultra-wideband) antennas: 6240–6740 MHz and 7750–8250 MHz."

... non male !!!