August 22, 2017

# 5 “How To” Videos You Need To Watch If You Have ADS

Posted by annamccowan Aug 22, 2017

Having trouble getting started with your next circuit design? Keysight EEsof EDA’s YouTube channel is filled with “How To” videos and examples to help you with your complex designs. In each video, Keysight engineers walk you through the steps while also covering the fundamentals of each topic. At the end of each video, you can download the workspace to help get you started on your own projects. These five videos are a must-see for anyone working with Keysight ADS.

This video shows how power amplifier circuits work. If you are new to high-frequency power amplifier circuit design, this is the place to start. If you are an experienced designer, this video provides unique insights into the fundamentals that you may not have seen before. There is also an entire playlist dedicated to this topic on our YouTube channel.

• What is AC power?
• How is AC power generated and dissipated?
• What topologies are convenient to use for power amplifier circuits?
• What is a loadline and how can this be used to design a power amplifier?

This video is one of a three-part series in Power Integrity tutorials. There are many factors to consider when selecting a VRM (Voltage Regulator Module), and this video covers two: Output Impedance and PSRR (Power Supply Rejection Ratio). This video uses measurement-based simulations to show that current mode topology is the best choice for flat impedance VRM.

• What factors should I consider when selecting a VRM?
• Why is flat impedance the PDN design goal?
• Why is VRM selection not arbitrary?

This video provides a quick 4-step process to show how to de-embed a fixture from a measurement to validate a PCB channel model, and then how to embed the fixture with the model to do a direct compare of simulation to full-path measurement both in the frequency domain and time domain.

• How can I match SI simulations to measurements?
• How can S-parameters simplify the problem?
• What is the best process to solve this problem?

This video discusses the most important considerations for phased array system design, especially popular for 5G. It begins with the basics of phased array design, then covers 4 key parameters of phased array architecture. After watching this video, you will be able to download the simulation tool, SystemVue, to perform your own phased array modeling and simulations.

• How does a phased array work?
• What are the key elements of phased array architecture?
• What factors influence the far field pattern?

This video guides you through what kinds of multi-antenna system architectures are being researched for the next generation 5G standard. It provides examples with end-to-end link level simulation and demonstrates key technical issues of different multi-antenna beamforming system design under mmWave channel environments.

• How does beamforming work?
• How can I model and simulate for key multi-antenna systems architectures?
• Is hybrid beamforming too good to be true?
• What is the 3GPP channel model for mmWave frequency band?

These are just five of the growing library of “How to” videos from Keysight EEsof EDA. Apply for a free trial of ADS or SystemVue to get started on your own designs.