Courses & Units

High Frequency Electronics and Circuits ENG748


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.


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 Brian Salmon
Delivered By University of Tasmania


Location Study period Attendance options Available to
Hobart Semester 2 On-Campus International Domestic


International students
Domestic students

Key Dates

Study Period Start date Census date WW date End date
Semester 2 11/7/2022 9/8/2022 29/8/2022 16/10/2022

* 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 2022 are indicative and subject to change. Finalised census dates for 2022 will be available from the 1st October 2021. Note census date cutoff is 11.59pm AEST (AEDT during October to March).

About Census Dates

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

Field of Education Commencing Student Contribution 1,3 Grandfathered Student Contribution 1,3 Approved Pathway Course Student Contribution 2,3 Domestic Full Fee 4
031303 $1,002.00 $1,002.00 not applicable $2,798.00

1 Please refer to more information on student contribution amounts.
2 Please refer to more information on eligibility and Approved Pathway courses.
3 Please refer to more information on eligibility for HECS-HELP.
4 Please refer to more information on eligibility for FEE-HELP.

If you have any questions in relation to the fees, please contact UConnect or more information is available on StudyAssist.

Please note: international students should refer to What is an indicative Fee? to get an indicative course cost.



ENG722 Control Systems 1|ENG750 Signals and Linear Systems


Teaching Pattern

3x 1-hour lectures per week

1x 1-hour assessed tutorial session (formative)

AssessmentCase or problem activated learning (30%)|Semester test 1 (20%)|Assessed tutorials (20%)|Semester test 2 (30%)
TimetableView the lecture timetable | View the full unit timetable



Required readings will be listed in the unit outline prior to the start of classes.

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