Courses & Units
High Frequency Electronics and Circuits ENG748
Introduction
The unit extends the physics of electrical phenomena when wavelength is small relative to system physical dimensions. The unit introduces an analysis and design, as well as phenomena encountered when wavelength is short relative to the physical dimensions of an electrical system. The student will study signal and current wave propagation along conductors in electrical structures. This study will lead into an introduction to transmission line theory, dealing with the distributed nature of circuits and systems when propagation delays are significant. Concepts such as reflection coefficients, impedance transformation and Smith charts are studied. Based on transmission line theory, multiport networks are introduced and studied. This includes S-parameters, Z-parameters and signal flow graphs, which makes the analysis and design of networks possible. The modelling of active high frequency components are also considered, including diodes, junction transistors and field effect transistors. Matching networks are studied (to enable maximum power transfer and reduce standing wave ratios). This includes discrete component matching networks (T and PI networks) and microstrip line matching networks. High frequency transistor amplifiers are studied, which include high frequency biasing, stability, gain, noise figure and multistage amplifiers. Students are assumed to have basic knowledge of electronic and electrical components such as transformers and other passive components. Finally, oscillator design will be investigated with non-linear effects such as higher order distortion.
Summary
| Unit name | High Frequency Electronics and Circuits |
|---|---|
| Unit code | ENG748 |
| Credit points | 12.5 |
| College/School | College of Sciences and Engineering School of Engineering |
| Discipline | Engineering |
| Coordinator | Doctor Haihan Sun |
| Delivered By | University of Tasmania |
Availability
| Location | Study period | Attendance options | Available to | ||
|---|---|---|---|---|---|
| Hobart | Semester 2 | On-Campus | International | Domestic | |
Key
- On-campus
- Off-Campus
- International students
- Domestic students
Note
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Units are offered in attending mode unless otherwise indicated (that is attendance is required at the campus identified). A unit identified as offered by distance, that is there is no requirement for attendance, is identified with a nominal enrolment campus. A unit offered to both attending students and by distance from the same campus is identified as having both modes of study.
Key Dates
| Study Period | Start date | Census date | WW date | End date |
|---|---|---|---|---|
| Semester 2 | 22/7/2024 | 16/8/2024 | 9/9/2024 | 27/10/2024 |
* The Final WW Date is the final date from which you can withdraw from the unit without academic penalty, however you will still incur a financial liability (refer to How do I withdraw from a unit? for more information).
Unit census dates currently displaying for 2024 are indicative and subject to change. Finalised census dates for 2024 will be available from the 1st October 2023. Note census date cutoff is 11.59pm AEST (AEDT during October to March).
Learning Outcomes
- Analyse high-frequency propagation, standing wave ratios, distributed impedance and reflections using transmission line theory and Smith charts.
- Analyse electrical structures where active components require high-frequency modelling, and propagation delays are not insignificant
- Design high frequency multiport circuits using S and Z parameters, as well as signal flow graphs.
- Design high-frequency multistage amplifiers, including the case where the amplifiers require impedance matching networks.
- Investigate impacts on transmission line performance due to small changes in the structure of high frequency circuits
Fee Information
The 2024 Commonwealth Supported Place (CSP) rates are still being finalised by the Government and we will update the domestic fee information as soon as we have more details.
Requisites
Prerequisites
ENG722 Control Systems 1|ENG750 Signals and Linear SystemsTeaching
| Assessment | Assessed tutorials (20%)|Semester test 1 (20%)|Design Report (30%)|Semester test 2 (30%) |
|---|---|
| Timetable | View the lecture timetable | View the full unit timetable |
Textbooks
| Required |
Required readings will be listed in the unit outline prior to the start of classes. |
Links | Booktopia textbook finder |
|---|
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