The power amplifier PA in the RF front end of the wireless communication system is a very critical device. Its main function is to amplify low-power signals to obtain a certain amount of RF output pow...
As shown in the figure, there are two questions:
1. What kind of feedback is introduced into the circuit shown?
2. The closed loop gain of the circuit. Thanks everyone....
Because copper is easily oxidized in the air, the copper oxide layer has a great influence on welding, and it is easy to form false welding and virtual welding. In severe cases, it will cause the pad ...
https://learn.adafruit.com/improved-amg8833-pygamer-thermal-camera/overviewThe resolution has been increased from 64 pixels (8 x 8) to 225 pixels (15 x 15) and the color depth has been deepened from 8...
The relationship between pulse+, pulse- and U2B output is logical AND.1. When pulse+ is high and pulse- is low, what are the voltages at points c and d respectively?
The Q8 diode is reverse cutoff (co...
Space-Time Block Coding (STBC) is an effective coding method that reaches or approaches the capacity of MIMO wireless channels. Blind recognition of space-time coding is an area that needs urgent r...[Details]
June 18th news, according to foreign media reports, on Thursday local time, chipmaker Qualcomm announced the launch of the world's first robot platform RB5 that supports 5G and AI (artificial i...[Details]
According to WSTS, the global semiconductor market size will be US$573.5 billion in 2022. This is an increase of 3.2% from 2021 and the previous value was 26.2%. What does the outlook look like in ...[Details]
Use stm32f103vet6 as the platform, enc28j60 network card, and lwip tcp/ip as the protocol stack to write the corresponding program.
The basic steps for writing programs with stm32 as a server and stm...[Details]
Medical robots
are
a new and popular track in the
robotics
industry. Last year, several global
medical
robot companies received hundreds of millions of yuan in financing. Accor...[Details]
With the improvement of industrial production automation level, various sensors are being used more and more. As a sensor for speed and displacement feedback, rotary encoders are mainly used in CN...[Details]
The switched reluctance power generation system consists of a doubly salient reluctance motor, a bidirectional power converter, a rotor position detector (or indirect position detector) and a contr...[Details]
MediaTek recently officially released the Dimensity 8200 5G mobile chip, which uses a 4nm process, an eight-core CPU and a six-core GPU. The first model equipped with this chip is expected to be laun...[Details]
Frequency domain measurements of RF power are the most basic measurements made with spectrum and vector signal analyzers. Such systems must comply with the limits set by the relevant standards for po...[Details]
Recently, overseas electronic engineering media edn.com analyzed how Intel's foundry will affect the EDA and IP industries. The article points out that Intel has said that an open and prosperous ec...[Details]
In order to let everyone fully understand the principle of UART serial communication, we first use P3.0 and P3.1 as IO ports to simulate the actual serial communication process. After understanding ...[Details]
Last time I mentioned that assembly language is very important, so in order to avoid forgetting, I will post some commonly used assembly instructions.
@mov command example
mov r1, #8
mov r2, r1...[Details]
According to statistics, up to 20% to 22% of electrical energy is used for lighting. Improving the energy efficiency of lighting applications and even further reducing their energy consumption wi...[Details]
The vector network analyzer is a very magical measuring instrument. Its functions are very powerful and worth exploring. Today, Antai Test will give a brief introduction to the Smith chart and filter...[Details]
In late July, the LG Q92 5G appeared on the Google Play Console website, and its front spy photos and key specifications were exposed. Now, this 5G phone with the model number "LGE LM-Q920N" has appe...[Details]
RF/Wirelessly
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