2017 ADI in-depth articles top 10

电路艺术

2017 ADI in-depth articles top 10 [Copy link]

First of all, ps. If the hyperlink in the title cannot be opened, please click: https://ezchina.analog.com/thread/17427 to view~

1. Be careful! In-depth analysis of the method of stable information transmission of unmanned aerial vehicles

Integrated radio frequency (RF) agile transceivers are not only widely used in software-defined radio (SDR) architectures for cellular phone base stations, but also suitable for wireless high-definition video transmission in industrial, commercial and military applications, such as unmanned aerial vehicle (UAV) applications. This article will - 1. Examine the process of implementing a broadband wireless video signal chain using the AD9361/AD9364 integrated transceiver IC, as well as the amount of data transmitted, the corresponding RF occupied signal bandwidth, the transmission distance, and the transmit power; 2. Describe the implementation of the OFDM physical layer and list the test results of the frequency hopping time used to avoid RF interference; 3. Discuss the advantages and disadvantages of Wi-Fi and RF agile transceivers for broadband wireless applications.

2. Comparison of the advantages and challenges of three commonly used receiver architectures -

• Heterodyne receiver
• Direct sampling receiver
• Direct conversion receiver

The intention of this article is not to praise a certain solution and belittle other solutions. On the contrary, this article aims to explain the advantages and disadvantages of these solutions and encourage everyone to choose the architecture that best suits a specific application according to engineering principles.

[url=https://ezchina.analog.com/thread/17427]3. Decoupling is too important, this article explains it thoroughly

Decoupling, there is no end to it~

4. Is the switching power supply noisy? Step-by-step analysis of output filter design

Switching power supplies are extremely valuable because of their small size, low cost and high efficiency. However, their biggest disadvantage is that high switching transients lead to high output noise. It is this disadvantage that prevents them from being used in high-performance analog circuits that are mainly powered by linear regulators.

However, practice has shown that in many applications, properly filtered switching converters can replace linear regulators to produce low-noise power supplies. Therefore, it is necessary to design optimized and damped multi-stage filters to eliminate the output noise of switching power converters.

5. Is analog filter design difficult? 8 pictures give you a tool that teaches you everything [/url]

Teach you how to use the analog filter design wizard step by step.

Sixth, the traveling wave tube can be put to rest. Who will dominate the world of high-bandwidth, high-power RF power amplifiers?

Advances in semiconductor technology have made rapid progress in the functions of high-power broadband amplifiers. The GaN revolution has swept the entire industry and can allow MMICs to generate more than 1 W of power in dozens of bandwidths. Therefore, this field, which was once dominated by traveling wave tubes, has begun to give way to semiconductor devices. This article will briefly describe the status of semiconductor technology supporting these developments, circuit design considerations for achieving optimal performance, and also list GaAs and GaN broadband power amplifiers (PAs) that demonstrate today's technology.

Seventh, the chip is dissected to reveal the technical secrets behind the super-powerful MEMS switch

How did the MEMS switch revolutionize the electromechanical relay? After reading this article, maybe you will understand~

8. Signal processing behind the buzzword Massive MIMO

You may have heard Massive MIMO described as beamforming of a large number of antennas. The question is: What is beamforming?

9. Perfect grounding VS. imperfect grounding

As the title says, let me tell you what perfect grounding is!

10. Is the evaluation board too expensive? Try virtual ADC design

A "magic tool" - easily change the ADC analog input, PGA gain, reference voltage source or power supply, and see the impact on the step response, amplitude-frequency characteristics or converter histogram.