High Frequency Techniques

High frequency techniques (217 - 13844)
Study: Bachelor in Communication System Engineering
Semester 2/Spring Semester
2ND Year Course/Lower Division

Students are Expected to have completed:

The student must have similar knowledge to the one given in Electromagnetic Fields and Analysis and Design of Circuits.

Compentences and Skills that will be Acquired and Learning Results:

Through this course, the student will learn the basic concepts on microwave systems and circuits. In order to achieve this goal, the student will obtain a knowledge based on a set of skills.
In terms of knowledge, the student will learn:
- Analysis and design of microwave passive and introduction to active devices.
- Study of basic tools for analysis and design of microwave devices: Smith chart and S parameters.
- Analysis and design of passive microwave circuits: matching networks, dividers, directional couplers, resonators and filters, non reciprocal devices such as circulators.
- Introduction to active microwave circuits: amplifiers.

In terms of the skills, we can classify them into specific skills and generic skills.
Specific skills:
- Review of the basic concepts on guided propagation explained in electromagnetic fields: basic concepts on waveguides and transmission lines.
- Knowledge of circuit tools to analyse microwave circuits:
- Knowledge of transmission line theory from the circuit theory point of view: Smith chart.
- Tools for microwave network analysis: scattering (S) parameters.
- Skills to design of passive microwave circuits:
- Two port, three port and four port networks: dividers, combiners and couplers.
- Analysis of resonators.
- Analysis and design of microwave filters.
- Introduction to non-reciprocal passive circuits.
- Introduction to microwave measurements: impedance measurement and fundamentals of network analyzers.
- Skills to analyse and design microwave amplifiers.

In terms of the generic skills, during the course the student will achieve:
- Overview of telecommunication systems by analysing and understanding the essential role of the transmitting or receiving RF-front-end. The student will achieve the ability to apply knowledge of mathematics and physics to design the circuits that transmit and receive the communication signal. (PO a)
- In addition he/she will be able to identify the circuits needed to develop a specific front-end by conducting (software packages such as AWR or ADS) and measuring the corresponding experiments (with the network analyzer). (PO b, c, e and k)
- Ability to work in group and effectively communicate the results of the realized experiments by explaining in speech the results of the experiments. (PO g, k)
- Assumption by the student of the necessity continuous learning and knowledge of the contemporary issues. (PO a, c, j, k)

Description of Contents: Course Description

0. Introduction to Microwave Circuits
1. Review of waveguide and transmission line theory: practical transmission lines.
2. Circuit theory of transmission lines: Smith chart, impedance matching.
3. Microwave network analysis: S parameters and graph theory.
4. Two, three and four ports passive microwave circuits: directional couplers and dividers. Introduction to non-reciprocal networks: circulators.
5. Microwave resonators.
6. Microwave filters.
7. Introduction to microwave measurements: impedance measurement and network and spectrum analyzers.
8. Introduction to microwave amplifiers.

Learning Activities and Methodology:

The teaching methodology will consist of three parts:
- Lectures on the main theoretical topics: the main theoretical topics of the course will be presented in these classes. Both the blackboard and computer presentations will be used. The students can have a text book and a set of slides covering all the topics in the course. This set of slides will be available from the beginning of the course. (PO a y c).
- Lectures on practical exercises. The students group will be divided in smaller groups with less than forty students. The students can have a problems book with many problems covering the topics of the course.(PO c y e)
- Practical work in the laboratory. The students will be divided in groups of 20 students to realize the four proposed practical works. They will work in groups of 2-3 students. In all the session a final quiz will have to be filled by the students. (PO b y k)
- Tutorship: There will be up to four time slots for tutorship during the week. These slots can be used by students once they have applied for it by e-mail. In addition there will be other collective tutorship. Students are encouraged to make use of both teaching mechanisms.

Assessment System:

The evaluation criterion is based on both a final exam (60% of the final mark) and a continuous evaluation (40% of the final mark).
The final exam will consist of an exam with 3 problems that have to be solved without books, although the formulae needed to solve the exam will be provided. (PO a, c and e)
The continuous evaluation procedure will consist of 2 exams with a weight of 15% and 20% of the final mark (35% ). (PO a, c and e)
The practical work will have a 5% of the final mark. (PO b, k).

REQUIREMENT:
Knowledge of the subjects: Analysis and Design of Circuits and Electromagnetic Fields

Basic Bibliography:

Daniel Segovia-Vargas et al. Notes on Microwave course. OpenCourseWare de la Universidad Carlos III de Madrid. 2009
David M.Pozar. Microwave Engeneering. John Wiley & Sons. 2007
Robert E. Collin. Foundations for Microwave Engineering. McGraw-Hill. 1992

Additional Bibliography:

Bahl y Bhartia. Microwave Solid State Circuit Design. Wiley Interscience. 1988
Gupta, K.C.; Garg, R. y Chadha, R.. Computer Aided Design of Microwave Circuits. Artech House. 1981
J.M. Miranda, J.L. Sebastián, M. Sierra, J. Margineda. Ingeniería de Microondas: Técnicas Experimentales. Prentice Práctica . 2002
Rizzi. Microwave passive circuits. John Wiley.
Wadell, B.C.. Transmisión Line Design Handbook. Artech House. 1991