Bachelor degree course for academic year 2010/2011
Lectures: 2 hours/week for one-half of semester or 1 hour/week for whole semester
Labs: 2 hours/session, appx. 10 sessions/semester
Characteristics of HF measurement systems, parts of HF measurement systems. Interfering signals in measurement systems, basic EMC measurements. Methods of HF voltage, power, and other circuit quantities measurement. Measuring of HF parameters of passive and active elements. Sources of measuring and reference signals. Measuring of frequency and time intervals. Time domain and spectral domain signal analyzers. Scalar & vector network analyzers. Standardization and automation of measurement systems.
NEWS WILL BE PLACED HERE
The exam topics here ( B, 0x).
From 17th March 2011.
Lecture notes in pdf ( B, 0x) (new version 2.3) now available.
VNA Slides ( B, 0x)
Scattering parameters here.
Vector Network Analyzers 1287-1.
Vector Network Analyzers 1287-2.
Vector Network Analyzers 1287-3.
This section contains the titles and brief description of laboratory sessions at the Department of Radio Engineering (K13137). Instructions are not available in English, the personal assistance during the measurements is provided.
In this experiment you will measure the basic parameters of ferrite-core inductors – inductance, series resistance or quality factor, self capacitance,…
Read Lab Assignment and pay close attention to par. 5.1 Principle of operation, 9.1 Method of direct Q and voltage measurements, 9.2 Method of Q measurement by detuning the measuring circuit, 9.4 Methods of measuring the inherent capacitances of coil (subpar. 9.4.1 only), and 9.5 Method of inductance measurements.
With the slotted line, the standing-wave pattern of the electric field in coaxial transmission line of known characteristic impedance can be determined. From the knowledge of the standing-wave pattern different parameters of the circuit connected to the load end of the slotted line can be obtained. You will measure impedance of unknown circuits, nominal velocity of propagation for coaxial cable, and Yagi-Uda antenna impedance by way of slotted line.
Read Lab Assignment and Slotted line measurement. Pay attention to basic transmission line theory (par 2) and especially to par. 126.96.36.199 Calculation of Impendance at the Load from the VSWR and Position of a Voltage Minimum using Smith chart - Figure 7.
This lab is focused on the measurement of a quartz crystal unit equivalent circuit, i.e. static (shunt) capacitance of holder, motional capacitance, motional inductance, and motional resistance. Moreover, the quality factor and series and anti-resonant frequencies are measured.
Go through comprehensive Vig's tutorial. Find info about crystal unit (Chapter 3). Another material .
First of all, you design audio frequency oscillator with operational amplifier and resistor-capacitor network feedback (Wien bridge oscillator). Afterward, you measure Wien bridge amplitude response and oscillator output signnal amplitude, distortion and frequency stability according to power supply voltage.
Wien bridge oscillator basics http://www.electronics-tutorials.ws/oscillator/wien_bridge.html.
Introduction to heterodyne (swept) spectrum analyzers and their parameters and application.
It is similar to Lab 4 (RC oscillator), but you design oscillators based on logic gates (TTL, LS-TTL, CMOS), where the frequency of oscillators is stabilized by crystal unit. Again, you measure stability of oscillator frequency in dependency on power supply voltage and tuning capacity.
The lab starts with the assignment to design low-pass antialiasing filter preceding n-bit analog-to-digital converter with sampling rate 10 kHz. You design active resistor-capacitor filter of the fourth order with operational amplifiers and measure amplitude response of filter.
The measurement of scattering parameters is one of the crucial measurement in the high-frequency and microwave frequency field. The main goal of this lab is to measure scattering parameters of high-frequency transistor in common emitter configuration and calculate some important parameters, e.g. maximum stable gain, available gain, stability factor,…
The measurement of impedance or its reciprocal, admittance, is as important as any other electrical measurement. In this experiment you will measure impedance of several passive components (resistors, capacitors, and inductors), and you will determine the simple equivalent circuit for each component. The second part of this lab is measurement of basic parameters of coaxial cable (impedance,…).
Introduction to digital oscilloscopes and their application.