5G Antenna Solution for Tunnel Scenarios
4.1 New leaky cable
High-speed rail and subway tunnels are small and closed, with severe multipath reflection. Traditional 13/8 leaky cables do not support fre...
Entering the era of network convergence, the era of traditional telecom operators dominating the communications industry will be gone forever, and 3G operations are no exception. The Economist asked...
[color=#000][font=Helvetica, Arial, sans-serif]R87/G14 has powerful performance and rich on-chip resources. Using it as the main control of the reversing system can save a lot of extra chips, save spa...
0; clk_bit<='0'; begin process(clk_in,reset) begin if(reset='1') then clk_cnt<="0000"; clk_bit<='0'; elsif rising_edge(clk_in) then if (clk_cnt=4) then clk_cnt<="0000"; clk_bit<=not clk_bit; else clk_...
Question: I added the header file using the "scan all file dependencies" method, and the "include" of the current project already shows the "board.h" header file. However, when I "build all", it shows...
Abstract: The structure and working principle of the monolithic switching power supply chip TOPSwitch are introduced, a complete application circuit example of an ultra-wide input isolated regulated s...
Some time ago, I attended the 4th Energy Chemistry Forum of the Chinese Chemical Society and learned about high-energy-density and high-safety batteries. I would like to summarize and share this wi...[Details]
Introduction to the principles of speech recognition technology
Automatic speech recognition (ASR) technology aims to enable computers to understand human speech and extract the textual inform...[Details]
On August 25th, SK Hynix announced that it has completed development and entered mass production of its 321-layer, 2Tb QLC NAND flash memory product. This achievement marks the world's first applic...[Details]
Definition of interactive projection system:
Interactive projection systems, also known as multimedia interactive projection, are available in floor, wall, and tabletop interactive projection....[Details]
A multilevel inverter converts a DC signal into a multilevel staircase waveform. Instead of a straight positive-negative output waveform, the output waveform of a multilevel inverter alternates in ...[Details]
Recently, Joyson Electronics has made positive progress in the core technology research and development of the robot's "brain and brain" and key components, and launched the industry's first integr...[Details]
The MCX E series is the most reliability- and safety-focused series in NXP's extensive MCX product portfolio.
With the launch of this series, NXP has further enriched its 5V-compatible MCU pr...[Details]
In the period after the switching power supply achieved the "20 kHz" revolution in the 1970s, although improvements and enhancements were made in circuit technology, the development level of the se...[Details]
MQTT Ethernet I/O modules primarily collect I/O port information and transmit data over the network. In addition to being a TCP server, Ethernet I/O modules can also function as TCP clients. Furthe...[Details]
We often hear about the precautions for using pure electric vehicles in winter, and many owners even develop relevant strategies, such as adopting a "charge as you go" principle for their vehicles,...[Details]
The driving mode is not unfamiliar to vehicles. According to the driving mode of the vehicle, there are front-wheel drive, rear-wheel drive and even four-wheel drive. Four-wheel drive is a major se...[Details]
Electric vehicles are composed of three main components: electric motors, electric motors, and electric vehicles. Maintenance is much simpler than for gasoline-powered vehicles. Maintenance for ele...[Details]
Common Mode Semiconductor has officially launched the GM6503 series—a 5 V, 3 A synchronous step-down DC/DC power module designed for optical communications, servers, industrial applications, and FP...[Details]
As a pioneer in the new smart home concept, robot vacuums have captured a significant market share. Robot vacuums, also known as automatic sweepers, smart vacuums, or robot vacuums, are smart home ...[Details]
Lithium-ion batteries are a key component of electric vehicles. Their high energy density enables them to store a large amount of energy in a relatively compact and lightweight package, which is cr...[Details]