High-frequency technology

Higher education teachers: Vidmar Matjaž
Credits: 6
Semester: winter, winter
Subject code: 64304

Subject description


Enrolment in the year of the course

Content (Syllabus outline):

High-frequency semiconductor devices: diodes and transistors. Different semiconductors, band-gap and carrier mobility. Amplifier operating point, classes A,B,C. S-parameters. Amplifier stability. Amplifier thermal noise. Noise figure. Noise measurements. Amplifier saturation, definition of P1dB. Inter-modulation distortion, IMD intercept point. Non-linear high-frequency circuits: mixer and limiter. Lumped LC and cavity electrical filters. Piezoelectric mechanical resonators, quartz crystals and SAW devices. Electrical oscillators. Short-term and long-term stability. Oscillator phase noise. Frequency synthesizers. Phase-locked loops, loop stability and phase noise. Implementation of radio transmitters. Basic designs of radio receivers: homodyne, heterodyne and zero intermediate-frequency designs. Carrier and clock recovery in radio receivers.

Objectives and competences:

Learning specific circuit components and systems for high frequencies. Learning specific methods of measurements, analysis and synthesis of high-frequency circuits. Learning fundamental system knowledge of radio communications.

Intended learning outcomes:

After successful completion of the course, students should be able to:

  • characterize the building blocks of radio transmitters and receivers
  • find the sensitivity of a radio receiver and measure its noise figure
  • measure the output power, efficiency and intermodulation distortion od a radio transmitters
  • select appropriate filters in different technologies for radio equipment
  • find the phase-noise performance of a radio-frequency oscillators
  • design a radio-frequency synthesizer including a phase-locked loop
  • select the most appropriate technology for a radio receiver

Learning and teaching methods:

Lectures to explain the theoretical background and laboratory experiments to practically confirm the theory in the spirit of team work.

Study materials

  1. http://lso.fe.uni-lj.si/studij/vt/
  2. Skripta laboratorijskih vaj:http://lso.fe.uni-lj.si/literatura/vt.pdf
  3. Zapiski snovi:http://lso.fe.uni-lj.si/literatura/vt.zap.pdf
  4. Posnetki predavanj:https://youtube.com/playlist?list=PLrQJt3OUetCDH1RF3jxrwN-Qotj2CFxmI
  5. Posnetki laboratorijskih vaj:https://youtube.com/playlist?list=PLrQJt3OUetCCooyVTF4wdA3dcnS3qh4UW
  6. Kostevc, D., Poglavja iz mikrovalov, Založba FE in FRI, Ljubljana, 2005
  7. Lee, H. T., Planar Microwave Engineering, Cambridge University Press, 2004 Schwierz, F., Liou, J. J., Modern Microwave Transistors, Wiley, 2003
  8. Misra, D. K., Radio-Frequency and Microwave Communication Circuits, Wiley, 2004

Study in which the course is carried out

  • 1 year - 2nd cycle - Electrical Engineering - Control Systems and Computer Engineering
  • 1 year - 2nd cycle - Electrical Engineering - Biomedical Engineering
  • 1 year - 2nd cycle - Electrical Engineering - Electrical Power Engineering
  • 1 year - 2nd cycle - Electrical Engineering - Electronics
  • 1 year - 2nd cycle - Electrical Engineering - Information and Communication Technologies
  • 1 year - 2nd cycle - Electrical Engineering - Mechatronics
  • 1 year - 2nd cycle - Electrical Engineering - Robotics