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Direct down conversion receivers and intermodulation balance

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thesis
posted on 29.03.2022, 00:38 by Ryan Clement
Direct down converting receiver architecture is reviewed. The impetus for moving towards this architecture is driven by cost, however it does have some design drawbacks. Volterra analysis is used to show how coefficients often neglected in heterodyne radios can play a significant part in the overall performance of a radio, although careful review of any spurious tones should be analysed before switching to this design topology. Measurements are taken with different devices from two process technologies - Gallium Arsenide (GaAs) and Silicon Germanium (SiGe) with differing results. Overall the GaAs devices are more linear, however the second order performance is significantly better with SiGe and it is thought that this could be attributed to balance.

History

Table of Contents

1. Abstract -- 2. Introduction -- 3. Intermodulation within downconverters -- 4. Intermodulation with respect to amplifiers -- 5. Intermodulation with respect to balanced amplifiers and mixers -- 6. Measurement in practice -- 7. Conclusion.

Notes

Bibliography: pages 43-44 Empirical thesis.

Awarding Institution

Macquarie University

Degree Type

Thesis MRes

Degree

MRes, Macquarie University, Faculty of Science and Engineering, Department of Engineering

Department, Centre or School

Department of Engineering

Year of Award

2016

Principal Supervisor

Anthony Parker

Rights

Copyright Ryan Clement 2016. Copyright disclaimer: http://mq.edu.au/library/copyright

Language

English

Extent

1 online resource (44 pages) colour illustrations

Former Identifiers

mq:55187 http://hdl.handle.net/1959.14/1147522