Design and Stability Analysis of GaN Power Amplifiers using Advanced Simulation Tools

November 4, 2025 | 10:00 AM PST

This webinar will present advanced simulation tools and techniques for the design of GaN power amplifiers with increased assurance of stable operation that goes beyond simple k-factor analysis. The methods will be demonstrated using Qorvo GaN technology and related non-linear models that have been modified to facilitate advanced stability analysis using the WS-probe in Keysight Technologies' Advanced Design System software.

Designing stable circuits is becoming harder as communication systems evolve. Instability derives from a combination of gain and feedback. Higher-frequency systems demand faster devices (more gain), while advanced functionality calls for tighter integration (more feedback). In this evolving landscape, traditional techniques are no longer sufficient. But the sheer number of alternative approaches and their perceived complexity leave them unused by many designers. This talk aims to demystify instability so you can design circuits that are actually amplifiers (not oscillators) from the start. We'll walk through the root causes of instability and the shortcomings of popular RF and Microwave stability analysis techniques. Then, we'll revisit prior fundamental work to provide, through examples, a simple, reliable process for rigorous stability analysis—enabled by the new WS-Probe simulation tool.

Who should attend this webinar? This Electronic Design Automation (EDA) webinar is ideal for RF and microwave engineers or anyone looking to gain a deeper understanding of amplifier stability and high-frequency circuit design.

Presenters

Matthew Ozalas

Engineer, Scientist at Keysight Technologies.

With an experience of more than 15 years, Matthew brings out a plethora of knowledge in complex RF designs using CAD tools.   Matthew has also authored several application notes on RF and Microwave design and development using Keysight ADS with his recent ones based on “Artificial neural network simulation models for RF power amplifiers” and has produced several tutorials on youtube regarding complex RF designs.

Matt received his BSEE from Penn State University in 2001 and his MSEE and MBA from Arizona State University in 2010. From 2001 to 2005, he worked at the MITRE Corporation in Bedford, MA, as an Integrated Electronics Engineer, designing RFICs and discrete RF and Microwave circuits.  From 2005 to 2013, he worked at Skyworks Solutions in Santa Rosa, CA, designing, developing, and testing high-volume multiband power amplifiers and front-end modules for wireless handsets. He joined Keysight in 2013.
Dr. Larry Dunleavy

President and CEO of Modelithics

Dr. Larry Dunleavy is the President and CEO of Modelithics, Inc. that he co-founded in 2001 to provide standardized highly accurate modeling solutions and measurement services for improved high frequency electronics hardware development for commercial wireless and defense related applications. Since 1990 he has been a faculty member within USF’s Department of Electrical Engineering and helped found the USF Center for Wireless and Microwave Information Systems (WAMI Center). His technical interests include all aspects of measurements and modeling as they related to simulation-based design of microwave and millimeter-wave circuits and systems.
Fouad Boueri

Senior Product Line Manager at Qorvo

With 24 years of diversified experience in the Semiconductors industry, spanning several functions including Product Management, Sales & Marketing, Channel Management, and Engineering Management, Fouad is a Senior Product Line Manager within the Defense & Aerospace business unit at Qorvo, High Power Analog group. The product lines include Discrete Transistors, SSPA Modules, and Filters.

Fouad holds a MS EE from the University of Michigan at Ann Arbor and an MBA from UCLA’s Anderson School of Management.

Reserve Your Spot

First Name*

Error: Please enter your first name.

Last Name*

Error: Please enter your last name.

Company Email*

Error: Please enter your email.

Country or Area*

This field is required.

Company*

This field is required.

Business Phone*

This field is required.

Industry*

This field is required.

Years of Experience

This field is required.

Job Level

This field is required.

Job Responsibility

This field is required.

Job Role

This field is required.

By registering, you are providing Keysight with your personal data. We may share this information with authorized sales partners. See the Keysight Privacy Policy for information on how we use this data.