Macquarie University
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Phase noise prediction in nonlinear mixer circuits

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posted on 2022-03-28, 19:11 authored by Tiernan Vanecek
The double balance mixer is a versatile component that is widely used used in various electronic applications. As a result, acquiring correct measurements means that it is not trivial to calculate its phase noise contribution. A 5MHz double balance mixer from Barnes et al will be studied. The mixer is comprised of commercial off-the-shelf components where the transformers contain a 1:5 impedance ratio that holds the ports at 50 Ω. It will utilise four 2N2222A transistors that operate as its diode ring where the collector and base ports are shorted. The mixer is explored in its conversion loss and phase noise contribution. This mixer will be constructed and measured using Macquarie University's laboratory equipment. The aim is to acquire similar results of conversion loss and phase noise to the literature report and to evaluate them. This leads to the research question: can phase noise be correctly simulated in nonlinear mixer circuits?


Table of Contents

1. Introduction -- 2. Background -- 3. Simulating conversion loss and phase noise -- 4. Measuring the mixer -- 5. Conclusions -- Appendices -- Bibliography.


Bibliography: pages 63-64 Empirical thesis.

Awarding Institution

Macquarie University

Degree Type

Thesis bachelor honours


BSc (Hons), Macquarie University, Faculty of Science and Engineering, School of Engineering

Department, Centre or School

School of Engineering

Year of Award


Principal Supervisor

Oya Sevimli


Copyright Tiernan Vanecek 2016. Copyright disclaimer:




1 online resource (xiv, 64 pages colour illustrations)

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