The tutorials are free of charge for all MRW (MIKON and URSI) participants, however you are asked to register if you want to attend a tutorial.

The tutorial selection page is available in COFFEE system (at the „Additional services and fees” subpage).

If you want to add a tutorial attendance after your registration, please go to https://systemcoffee.pl/  and login using your registration email and password; then select „MRW”, „Edit registration data” and go to the „Additional services and fees” tab. Do not use the „new registration” link (one with „kid=” in the address).

Tutorial 1 (1/2 day):
„High-Efficiency RF and Microwave Power Amplifiers: Historical Aspect and Modern Trends”

Subject overview

• Polyharmonic Class-F and inverse Class-F power amplifiers (1 hour)
• Switchmode Class-E power amplifiers (1 hour)
• High-efficiency Doherty amplifier architectures (1 hour)

Tutorial 2:
„Aperture Synthesis in Radar Technologies: Geometries, Models and imaging Algorithms”

Subject overview

Synthetic Aperture Radar and Inverse Synthetic Aperture Radar (SAR/ISAR) systems are powerful instruments for monitoring and imaging of stationary and moving objects during throughout the day and all weather conditions. Range resolution is achieved by using high informative wideband frequency emitted signals subjected to compression. Cross-range or azimuth resolution is achieved by aperture synthesis.

1. SAR/ISAR/BSAR geometry and kinematics description.
2. SAR/ISAR/BSAR signal formation and image reconstruction as direct and inverse spatial transforms: analytical description.
3. SAR/ISAR/BSAR signal modeling and imaging algorithms – numerical experiments.
4. ISAR software system: blocks, functionalities (Matlab – Simulink implementation).

Tutorial 3:
” CANCELLED: 5G Key Technologies:
What They Have to Do With Antennas?„

Subject overview

What is the 5th generation (5G) wireless communication? Nobody could tell us an exact definition at present. However, some emerging and potential technologies have attracted more and more attention. Of which, massive MIMO, millimetre wave, Beamforming, Full Duplex technologies are considered to be the key technologies for 5G wireless communications. Traditionally, the antenna in mobile communication systems is a passive element and generally is separated from the RF transceivers. To design the future antennas for mobile terminals, not only the bandwidth and antenna efficiency need to be acceptable, but also beam pointing and beam coverage is essential knowledge of the mobile channel. It is expected that the antennas or the antenna system will be adaptive. Moreover, the antennas or the system should not only cover the new frequency bands but also can be tightly integrated with the existing systems (4G) and evolutions of the 4G system primarily at the conventional sub-6 GHz bands. Several structures are available for designing multiband antenna such as planar inverted-F antenna (PIFA), monopole antenna and slot antenna etc. For example, by using monopole element, multiple resonances can be excited to cover large bands with reasonable system size. Moreover, at either lower microwave band or millimetre wave band, the antenna will be seamlessly integrated with RF transceivers and even with RoF or ADC (DAC) and E/O (O/E). Nowadays, for instance, mobile phones are required to be thin, elegant and have metal body along with other electrical requirements such as supporting multiple radios, large battery, high resolution display and camera etc. Several multiband antennas are required with sufficient isolation between them to support multiple radios and are essential for multifunctional devices. Therefore, the antenna for 5G communication systems will have distinct characteristics compared to traditional antennas. The tutorial will focus on the recent research advances in 5G antennas in interaction with the 5G Key technologies ingredients. It will be a good opportunity for students, professors and researchers in the field to brainstorm on and to identify the antenna’s requirements to satisfy the 5G key emerging technologies.

Tutorial 4:
„Noise in Linear Circuits”

Subject overview

The tutorial will address both theoretical and specific technical concepts encountered in the analysis, measurement and design of linear noisy circuits. Although the material to be presented can be found in many published books and papers, it is usually broadly scattered and not necessarily presented in orderly sequence. It will cover tutorial exposition of some key physical and network theoretic ideas as applied to practical models, circuits and measurement methods. It is therefore addressed to those interested in developing a good understanding of noise in microwave devices and circuits. The subjects to be covered are as follows:

1) Physical sources of noise

• Thermal
• Shot
• Diffusion
• 1/f noise
• Noise representation of 1-port networks

3) Noise measurement

• Y-factor measurements–noise sources and calibrations
• Noise parameter measurements of two ports
• Most used methods of noise parameter measurements
• Noise standards and accuracy of noise measurements

5) Low-noise amplifiers

• Fundamental considerations
• Designs for simultaneous noise and gain match

2) Noise analysis of linear networks

• Twiss’ theorem
• Noise parameters of passives
• Noise representation in multiport networks; noise parameters
• Noise figure, noise temperature, noise measure, Friis’ formula

4) Noise models of microwave transistors

• Field effect transistor noise models
• Bipolar transistors (including HBT) noise models
• Allowable values of noise parameters for transistors
• Experimental validation
• Limits on allowable values of noise parameters of transistors
• Limits on achievable noise temperature of field effect transitors

6) Miscellaneous topics (time permitting)

• Mixer as linear noisy two port
• Introduction to radiometry

Marian W. Pospieszalski was awarded the M.Sc. and D.Sc. degrees in electrical engineering from the Warsaw Institute of Technology, Warsaw, Poland, in 1967 and 1976, respectively.

From 1967 to 1984, Dr. Pospieszalski was with the Institute of Electronics Fundamentals, Warsaw University of Technology (WUT), during which time he held visiting positions with the Electronics Research Laboratory, University of California at Berkeley (1977-1978), the National Radio Astronomy Observatory (NRAO), Charlottesville, VA (1978-1979), and the Department of Electrical Engineering, University of Virginia, Charlottesville, VA (1982-1984). Since 1984, he has been with the NRAO Central Development Laboratory, presently as Scientist with tenure. While on leave during 2001-2002, Dr. Pospieszalski was Chief Scientist-Microwave at Inphi Corporation, Westlake Village, CA. His research interests are in the fields of microwave, millimeter-wave, and high-speed circuits and systems.

Dr. Pospieszalski has authored or co-authored over hundred journals and conference papers. He has been a member of the IEEE Transaction on Microwave Theory and Techniques (MTT) Editorial Board since 1987 and Proceedings of IEEE Editorial Board since 2013. Since 1992, Dr. Pospieszalski has been a member of the IEEE MTT Society Technical Committee on Microwave Low-Noise Techniques, serving as Chair of that Committee from 2001-2004. He has also been a member of the Technical Program Committee of the International Microwave Symposium since 1992, a member of URSI Commissions D and J, and has served as a reviewer for many journals.

Dr. Pospieszalski was elected Fellow of IEEE in 1992. He received the NRAO Distinguished Performance Award in 2002, Distinguished MIKON Contributor Award in 2004 and the Microwave Application Award from IEEE MTT Society in 2006.

Tutorial 5 – EuMA course (Thursday after lunch):
„Antenna systems and algorithms for microwave imaging„

Subject overview

Nowadays, microwave imaging is broadly used for non-destructive testing, concealed weapon detection, through-the-wall imaging, land mine detection, road pavement inspection, underground facilities survey, archaeological investigation, imaging of biological tissues, etc. This list is still expanding, especially at sub-mm wave frequencies. In all cases, the scene of interest is illuminated by natural or man-made sources and image is formed based on received scattered electromagnetic field. The two principal modalities of image formation are analogue (when image is formed by means of lens or mirrors following quasi-optical approach) and digital (when image is formed by means of digital signal processing of scattered field, which is measured at different spatial locations by antennas). While in the former case intensity of electromagnetic field in a single point of the image corresponds to scattering/reflection properties of a corresponding area of the scene, in the latter case electromagnetic field amplitude and phase measured by an antenna at a particular position depend on scattering/reflection properties of the whole scene. In both cases the image cross-range resolution is mainly determined by the electrical size of the imaging aperture (area, at which the scattered field is collected by mirror, lens or antennas) and the range of the scene. The tutorial is focused on selection of measurement locations of the scattered field within the imaging aperture and main digital processing algorithms used to create an image from the measured amplitude and phase of the scattered field.

Prof. DSc. Alexander Yarovoy

Microwave Sensing, Signals and Systems (MS3), Chair
Delft University of Technology
the Netherlands