College - Author 1

College of Engineering

Department - Author 1

Electrical Engineering Department

Degree Name - Author 1

BS in Electrical Engineering

College - Author 2

College of Engineering

Department - Author 2

Electrical Engineering Department

Degree - Author 2

BS in Electrical Engineering



Primary Advisor

Dale Dolan, College of Engineering, Electrical Engineering Department

Additional Advisors

Steve Dunton


This project requires that we select a high frequency amplifier that most fits the desired specifications of our client, who is hoping to use our data and results for a senior technical elective at Cal Poly SLO. In order to do this, we use an amplifier trade to compare specs for select amplifiers and choose one to use for testing. Through this trade, the ERA-3+ is shown as the best option for us to use in the lab. The ERA-3+ amplifiers are characterized by their s-parameters and metrics of nonlinearity which includes 1dB compression point, carrier to third order intermodulation product (C/3IM), third order intercept (TOI/IP3), and noise power ratio (NPR) performance. The amplifier is characterized to ensure it is functional. Further, notch filter options are explored and built to assist in applying the NPR test for these amplifiers.

However the project plan had to be adjusted because of the COVID-19 pandemic and we were not able to measure the amplifier NPR in the lab. To adjust, we simulate the 1dB compression point, two tone test (used for determining C/3IM and IP3), and the NPR in Advanced System Design (ADS) for an ERA-3+ characterized by its s-parameters. The final goal for this project is to develop relations between the metrics of non-linearity. By primarily looking at how the 1dB compression point and TOI each affect NPR performance, we are able to build mathematical models which show a clear correlation between these parameters.