On May 6, Viavi, the Test and Measurement manufacturer announced its latest statistics on global 5G development. The data shows that China currently has 356 5G cities, the United States has 296 5G cities, and the Philippines ranks third in the world with 98 5G cities. By region, the EMEA (Europe, Middle East and Africa) region has surpassed Asia Pacific, including Greater China (APAC), a……
According to statistics news on March 17th., AT&T, Verizon, T-Mobile US and other US companies have spent about a total of $117 billion (US dollars) in the purchase of 5G mid-band spectrum in the past 12 months.These include:1. Last year, the purchase of C-band 280 MHz spectrum totaled about $81 billion (US dollars) ,the FCC’s largest ever spectrum auction, after which AT&T and Verizon eac……
What is LoRa®?LoRa uses unlicensed sub-GHz wireless bands such as 433 MHz (Europe), 868 MHz (Europe) and 915 MHz (North America). It allows long distance transmission (10km+ in suburbs, up to 2km in urban areas) and still maintains extremely low power consumption (sub-uA).There are two expressions of this technology: LoRa, physical layer; LoRaWAN (Long Range Wide Area Network), upper layer. &……
On March 17, Laure de La Raudière, president of the French Communications Regulator ARCEP, and two French government ministers (Agnès Pannier-Runacher, the Minister of Industry and Cédric O, the Secretary of State for Digital Transformation and Electronic Communications) announced that the 3.8GHz-4.0GHz frequency band would be established as the frequency of industrial 5G private network. French c……
011800（B3）Frequency（1200~1950MHz）, 4G important frequency.It is the anchor frequency bands for 5G NSA networking，bandwidth 25MHz.02900（B8） Frequency（3450~3800MHz）, 4G base band，bandwidth 12MHz； 03A-band (B34) frequency (36200~36350MHz), bandwidth 15MHz;04D-band (B38) frequency(37750~38250MHz), outdoor macro station in the main urban area, global common frequency band05F-band (B39) frequency (……
Definition:A Diplexer(duplexer) is a three-port passive radio frequency device that is a very common in communications, radar, and other sensing applications. Diplexer(duplexer) consists of two filters of different frequencies connected to an antenna. By using the frequency division function of high-pass, low-pass or band-pass filters, the same antenna or transmission line can use two signal ……
