1. The Wright brothers invented the airplane and changed the way of human travel, while Bell invented the telephone and changed the way of human communication. Ma Faming's QQ changed people's views on penguins in China. Recently, Apple's latest patent "Dual-band antenna wireless charging and communication system" passed the examination of the US Patent Office. People say that charging a mobile phone with WIFI will completely subvert the charging history of human beings. In the future, the faster the WIFI is charged, the faster it will be charged, so you don't have to worry about the problem that the mobile phone is out of power.
2.Wi-Fi is a technology that allows electronic devices to connect to a wireless local area network (WLAN), usually using 2.4G UHF or 5G SHFMism radio frequency band.
3. Generally, a complete WIFI chain includes wired broadband-AP (wireless access point) is what we usually call a router-access device. Access devices are usually divided into two categories: notebooks and mobile phones. The WIFI baseband chip in the mobile phone exchanges data with the wireless router through WIFI signals. It is the familiar process of surfing the Internet through WIFI in our daily life.
4. Firstly, it is clear that the signal propagation of WIFI is a wave propagation. Waves are all vibrations, and only the vibrations of WIFI signals are beyond our perception.
5. Energy can be effectively transferred between two objects with the same vibration frequency, but the interaction between objects with different frequencies is weak. This is why a singer can break a bottle with different amounts of water without affecting other bottles. It is the principle of magnetic field vibration in our high school physics. You can review high school physics when you are free.
6. Therefore, charging through WIFI is a process of generating * * vibration through WiFi signal, generating * * vibration through the sensing element in the mobile phone, and then converting the energy generated by the sensing element into the power of the mobile phone. In the process of charging WIFI, the power of the sensor will directly affect the charging rate. According to the principle of electromagnetic field, the greater the power, the more energy is generated. So now a lot of wireless charging will use the wireless charging board to improve the charging efficiency.
7. Theoretically, all kinds of scattered radio waves (including light waves) can be charged. Of course, including cell phone signals, such as 3G and 4G signals, you can charge your cell phone. So in the future, the mobile phone is dead, so you can brush the traffic to charge the mobile phone. The more traffic you spend per second, the faster the phone charges.
reference data
Now the wireless can also be charged. Wireless charging can be used [reference time 20 18- 1-9].