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 ……
Definition: The Ka-band with frequency range 26.5 ~ 40GHz, is part of the microwave band of the electromagnetic spectrum. In other words, the band is directly above the K-band.The Ka-band is also known as the 30/20 GHz band and is commonly used for satellite communications.26.5~40GHz coaxial circulatorThe disadvantage of the Ka-band is that the rain attenuation is relatively high, and the requirem……
Working frequency of Radar The core of radar working principle is that the radar transmits electromagnetic wave of a certain frequency, receives the echo reflected by the target, and determines some states of the target according to the echo. The frequency of electromagnetic wave emitted by radar is its working frequency. The radar frequency band refers to the frequency range in which th……
