Today, Verizon CommunicaTIons announced today that it will provide 5G services to select users in 11 US cities in the first half of this year.
According to reports, these cities include Atlanta, Dallas, Houston, Miami, Seattle and Washington, etc. Verizon will provide "pre-commercial services" in these cities.
Compared with the current 4G network, the speed of the 5G network can reach at least 10 times the speed of the 4G network, and the maximum speed can reach 100 times. The number of supported devices is at least 100 billion, and the download speed can reach 10GB per second.
In addition to Verizon, AT&T also said in January that it will test its 5G network in AusTin, Texas, in the first half of the year.
It is worth mentioning that China Mobile recently said that it will launch a large-scale 5G field experiment this year, and expects to achieve 5G trial commercialization in 2018. It is expected to achieve nationwide 5G commercial use by 2020.
Fast thyristors (Inverter Thyristor)are used for higher frequency rectification. Inverter and inverter circuit appliances.
Rectifiers have many uses, but are often found serving as components of DC power supplies and high-voltage direct current power transmission systems. Rectification may serve in roles other than to generate direct current for use as a source of power. As noted, detectors of radio signals serve as rectifiers. In gas heating systems flame rectification is used to detect presence of a flame.
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