Massive MIMO (M-MIMO or MM for short), as the core technology of 5G, is carried on the AAU, and the antenna array inside the AAU is the most important carrier for realizing Massive MIMO.
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[backcolor=white][size=4][color=#000000]1) Decoupling capacitors are mainly used to remove interference from high-frequency signals such as RF signals. Interference enters through electromagnetic radi...
The circuit introduced in this article is a practical circuit used for time calibration and meter reading in time-sharing electricity meters. It is simple and practical. Using the asynchronous communi...
Author: Huang Gang, a member of Yibo Technology Expressway MediaSimulation is the simulation of PCB design, and PCB design is the design used for processing and production. As the error factors brough...
Realme is rumored to be working on launching the Realme X3 series. Multiple reports have revealed the existence of a phone called the Realme X3 SuperZoom. As the name suggests, the phone may u...[Details]
About the basic composition of LED light strip switching power supply The LED light bar switching power supply generally consists of LED diodes, IGBTs and MOSFETs. It uses a circuit to control the sw...[Details]
On February 10, Black Shark’s new phone obtained network access permission. As shown in the picture, the new Black Shark phone adopts a horizontal camera layout design and a centered hole-pun...[Details]
I believe many old Samsung users know that Samsung usually releases the Galaxy S series in the first half of the year and the Galaxy Note series in the second half of the year. The rhythm of alternat...[Details]
A miniature model developed by researchers at the University of Southern California can replicate key aspects of myocardial infarction and may one day serve as a platform for new personalized cardi...[Details]
I made a laser distance measurement VL53L0X program myself, and I want to share it with you. There is no display device in this program, because I don't know what you want to use for display, so plea...[Details]
The underground environment of coal mines is very bad. Landslides and coal dust may occur at any time, which will affect the normal operation of fixed alarms to check gas concentration. The most relia...[Details]
TMS320C32 is a floating-point digital signal processor ( DSP ) produced by TI in the United States. It is a new product of TMS320 series floating-point digital signal processors. Its CPU is s...[Details]
The interference generated by the switching power supply can be divided into two types, peak interference and harmonic interference, according to the type of noise interference source; if divided a...[Details]
In 2020, countries around the world have experienced an unprecedented epidemic, and many overseas countries are still shrouded in this haze. India has been hit hardest. As of January 6, 2021, there a...[Details]
First of all, msp430 does not have a P0 port, so let's use the P1 port to explain P1OUT = 4; P1.2 pin outputs a high level, and the rest of the P1 pins output a low level; P1OUT |= 4; P1.2 is set to a...[Details]
According to my observation, the competition in the mobile phone industry chain has gradually turned into competition among listed companies since the past two years. At the same time, more upstream ...[Details]
Everyday traffic jams pose a safety risk to vulnerable road users. According to foreign media reports, Volvo Trucks has launched two safety systems that focus on protecting pedestrians and cyclists...[Details]