Fixed Wireless Access (FWA) is an important 5G technology, providing new and more flexible wireless solutions for broadband for the last mile to the home.Fixed wireless is the operation of wireless communication devices or systems used to connect two fixed locations (e.g., building to building or tower to building) with a radio or other wireless link, such as laser bridge. Usually, fixed wireless ……
What is C-band?The C-band is full band between 4 to 8GHz, which has been used for satellite since 1970s, now part of the band ranges is released for cellular companies. The International Telecommunication Union (ITU) has divided C-band into three groups: band n77(3300~4200MHz), band n78(3300~3800MHz), and band n79(4400~5000MHz).Most European and Asian countries currently use n78(3.3 to 3.8GHz……
A TX RX Multicoupler is a device used to couple the transmitter and receiver to an antenna. It transmit signals with high port-to-port isolation. A typical multicoupler consists of filters/duplexers, a Low Noise Amplifier and a power divider. It is an important part of a telecommunication system.When multiple receivers or transmitters or radio stations share an antenna, in order to avoid mutual in……
On November 10, China Telecom released own-developed 5G satellite dual-mode mobile phone, Tianyi Platinum S9, was officially released at the 2023 Digital Technology Ecology Exhibition. Satellite communications may show two technological evolution routes:At the terminal level, direct connection to satellites has gradually evolved from dedicated terminals to smartphones.At the satellite equipme……
The RF front-end is a vital part of wireless communication equipment, and it is the basic component for converting wireless electromagnetic wave signals and binary digital signals into each other.The Structure of the RF Front-EndRF front-ends can be divided into transmitter (TX) and receiver (RX) based on function.According to the components, it can be divided into power amplifiers (PA), low-frequ……
A coaxial attenuator is an energy-degrading RF/microwave component that contains resistive materials inside. In addition to the commonly used resistive fixed attenuators, there are also electronically controlled fast-adjustment attenuators.Attenuators are widely used in a variety of applications where power level adjustment is required. The basic materials that make up a coaxial attenuator ar……
