Patent of router built-in antenna

When it comes to WIFI, many people's first impression is that the signal sent by the router at home can be used to wirelessly connect the mobile phone or laptop to the Internet. With the progress of science and technology, more and more smart devices have entered the homes of ordinary people. These various smart devices are connected to the Internet through WIFI signals, which is often referred to as the Internet of Things. We are about to enter the era of Internet of Everything. However, all this needs to rely on WIFI to realize the Internet of Everything. With the popularity of 5G, will WIFI be replaced? It is hard to say whether it will be replaced in the future, but it is certain that most smart devices still rely mainly on WIFI signals for connection at this stage.

Who first invented WIFI?

Let's review the development of WIFI. WIFI was originally invented by a team led by Australian Dr. John Sullivan. This team belongs to Australia's largest scientific research institution, and its name is Commonwealth Scientific and Industrial Research Organization. It can be said that the WIFI technology we have been using belongs to Australia, and the Australian government can get billions of dollars every year through WIFI patent fees just because of this invention.

When was WIFI invented?

The team led by Dr. John Sullivan invented WIFI technology in 1990s. Later, after several years of hard work, the transmission was as fast and stable as the wired network. After breaking through these technologies, we successfully applied for the patent of wireless network technology of 65438-0996 in the United States.

When was the core technical standard of WIFI finalized?

IEEE (Institute of Electrical and Electronics Engineers) has defined the 8022. 1 1 standard in 1999. At that time, Australia's wireless network technology was chosen, because it was the best in the world at that time and became the core technical standard of WIFI at 20 10. IEEE once asked the Australian government to give up this patent and let the whole world enjoy it for free, but it was rejected by the Australian government. Later, major equipment manufacturing companies around the world had to pay patent fees, including: Apple, Intel, Lenovo, Dell, Sony, Toshiba, Microsoft, Acer, Asus and so on. With so many patent fees, the Australian government is certainly unwilling to enjoy them for free. Wireless network technology has been praised by Australian media as the greatest technological invention in their country's history.

How many generations has WIFI developed today?

WIFI has never been divided into specific generations, only the technical standards have changed, but in order to distinguish technological innovation, the industry has roughly divided WIFI4, WIFI5 and WIFI6. WIFI4 was defined in 2009, and the protocol used is 802. 1 1n, and the maximum single-stream bandwidth is 150Mbps. WIFI5 was defined once in 20 13 and 20 16 respectively. The protocol used in 20 13 years is 802. 1 1ac, and the maximum single-stream bandwidth is 433Mbps. 20 16, and the protocol used is also 802. 18. Only the single-stream bandwidth is up to 867Mbps, and WIFI6 is defined after 20 18. The protocol it uses is 802. 1 1ax, and the maximum single-stream bandwidth can reach 120 1Mbps.