The reverse power (or reflected power) is the sum of all the power output from the device to the capacitor plate or the inductor coil, including the effective power absorbed by the load and the reflected power not absorbed. Usually recorded as Pr. The measurement of reverse power is an important part of network measurement. For RF signals, reflections occur when the impedances of two connecte……

In this article, we are going to introduce the DBS band from five points.The definition of DBS, how it is transmitted, how it features, how it develops, & satellite frequency bands. Definition: DBS, or Direct Broadcasting Satellite Service, usually refers to the use of geosynchronous orbit satellites to radiate a certain area on the ground with high power, and transmit information such as……

The MIMO of LTE has a maximum of 8 antennas. 5G extends the MIMO of 4G LTE to 16/32/64/128 antennas, which is called Massive MIMO.Massive MIMO and beamforming (Beamforming) complement each other.Massive MIMO realizes three-dimensional precise beamforming and multi-stream multi-user multiplexing technology by integrating more radio frequency channels and antennas.Massive MIMO is responsible for agg……

First, let’s introduce the main architecture of the wireless communication system, the core network (CN), the radio access network (RAN) and the user terminal (UE), such as a mobile phone.Usually, the core network and access network concepts of each generation of communication technology (1G, 2G, 3G, 4G…) are launched and deployed simultaneously, and the core network has forward compatibility to……

Recently, the China Ministry of Industry and Information Technology issued a new version of the Regulations of the China on the Division of Radio Frequencies (MIIT File No. 62, hereinafter referred to as the Regulations of the Division), which has been officially implemented on July 1st, 2023. The Regulations of the Division is a basic administrative regulation for the development, utilizatio……

The Biggest Microwave, RF and Antenna Event in China China International Conference & Exhibition on Microwave and Antenna (IME/China), which is the largest and most influential Microwave and Antenna exhibition in China, will be a good platform and channel for technical exchanges, business cooperation and trade promotion between global Microwave and Antenna products & technology suppliers a……