CAD in HF Technique

Garant předmětu:

Lecturer:

Tutor:

Supervisor:

Department of Electromagnetic Field

Synopsis:

Introduction into principles and techniques used in modern microwave circuit design.

Requirements:

Syllabus of lectures:

1. Introduction into microwaves. Circuits seen as media with propagating waves.

2. Transmission lines used in Microwave Integrated Circuits, including discontinuities.

3. Optimization applied to circuits,error function, local and global methods.

4. Bioinspired optimization method, Pareto optimization.

5. Introduction into Numerical Electromagnetics.

6. Finite differences applied to static and quasi-static harmonic fields (FDFD).

7. Finite Element Method (FEM), and the Method of Moments (MoM).

8. Analysis methods suitable for microwave circuits and systems, frequency domain.

9. Finite Differences in Time Domain (FDTD).

10. Approximate boundary conditions in Time domain, absorbing boundary implementation.

11. Circuit parameter/model extraction.

12. Introduction into non-linear circuit analysis in frequency and time domains. Harmonic balance.

13. Large structure analysis.

14. Analysis of optoelectronic circuits.

Syllabus of tutorials:

1. Introduction. Problems resulting from finite circuit dimensions - and how to make use of it.

2. Finite Difference (FD) method in electrostatics

3. FD, dielectric interface

4. FD, shielded strip analysis, project task assignment

5. Finite Difference Time Domain (FDTD) method, discretion of Maxwell equations in 1D space, numerical dispersion, stability of the solution

6. FDTD, excitation, absorption boundary condition (ABC), reflection at the interface of two environments

7. FDTD, propagation constant, material absorption, perfectly matched layers (PML), transition to freq. area - coefficient of reflection

8. Work on a project task

9. CST Microwave Studio - work with a professional EM field simulator

10. CST Microwave Studio - work with EM field simulator, advanced functions

11. Moment method - distribution of the charge on the board

12. Method of moments - distribution of current density on a dipole, input impedance, dependence of parameters on segmentation density

13. Getting started with the 3D MoM simulator EM field AXIEM

14. Project task submission. Assesment.

Study Objective:

This course provides its students with knowledge of principles and techniques used in modern microwave circuits as well as with basic design methods used in such systems.

Study materials:

[1] Gupta, K.C., Garg, R., Chadha, R.: Computer-Aided Design of Microwave Circuits. Artech House, Dedham 1981

[2] David M. Pozar, Microwave Engineering, 4th ed., John Wiley & Sons, 2012, ISBN: 978-0-470-63155-3.

Note:

Further information:

https://moodle.fel.cvut.cz/courses/BE2M17CADA

No time-table has been prepared for this course

The course is a part of the following study plans:

• Electronics and Communications - Electronics (compulsory course in the program)
• Electronics and Communications - Photonics (compulsory elective course)
• Electronics and Communications - Radio Systems (compulsory elective course)