Course #91

Applied Radio Design: 
From System Architecture to PCB Implementation

New date to be decided. 
Available as a corporate-exclusive / tailored course at your site.
Please contact Ms Elisabet Larsson for an offer: 
cei@cei.se   Phone: +46-13-100 730   Fax: +46-13-100 731

INSTRUCTOR
Dr Lutz Konstroffer, RF Consult GmbH, Irschenberg, Germany

TECHNOLOGY FOCUS 
Wireless technology penetrates more and more applications in the industry, the home and the office. The semiconductor industry offers a wide range of IC devices for wireless transmitters and receivers. It is the charter of the RF circuit designer to implement these ICs on a PCB according to the system architecture. 

COURSE CONTENT 
Starting from a system level consideration and ending with an example of a practical realisation, the course enables the participant to implement a wireless data transmission system on the PCB level. 

Particular attention is paid on the tuition of immediately applicable knowledge. The tools most frequently used in RF engineering are introduced, their application is exercised on practical examples. 

Monday 

Wireless Data Transmission on the System Level 
This section gives an overview on the modulation formats and multiple access techniques used in wireless transmission systems.Typical transmitter and receiver architectures are introduced; their advantages and disadvantages will be discussed. 

• Analogue Modulation Methods: AM, FM, PM
• Digital Modulation Methods: ASK, FSK, m-PSK
• BER vs. Signal-to-Noise-Ratio
• Multiple Access Techniques
• Examples of Wireless Standards
• Typical Transmitter and Receiver Architectures 

RF Basics 
We discuss the exceptional features of the radio frequency range, 
complex numbers, logarithmic scales, impedance and admittance 
concepts. The features of ideal and real passive components at radio 
frequencies will be explained. 

• Complex Numbers
• Logarithmic Scales
• Passive Components 
• The Impact of Parasitics 

Tuesday 

RF Basics (cont´d) 
We consider resonant circuits, transmission lines, reflection, and matching.The use of the Smith Chart as a tool to solve matching tasks will be extensively practiced. A discussion of S-parameters, nonlinear distortions and noise completes the RF basic section. 

• Resonant Circuits
• Reflection and Matching
• The Smith Chart and Its Application
• 2-port-parameters and S-parameters in Particular 
• Transmission Lines
• Nonlinear Distortions
• Noise Behaviour and Sensitivity Considerations
• Network Analysis Software Tools 

Wednesday

Building Blocks of Wireless Transmitters and Receivers 
Based on the knowledge obtained in the previous section, building blocks of wireless receivers and transmitters will be treated.The course lets the participant understand the principal function and the specifications of low noise amplifiers, power amplifiers, oscillators, and mixers. Practical hints to use integrated circuits that contain these building blocks are given. 

• Amplifier Design
• Stability of Amplifiers
• Loci of Constant Noise Figure
• The available gain concept
• LNA Design Example 
• Power Amplifiers 
• Oscillators
• VCO Tank Circuit Design
• Mixers 

Thursday 

Phase Locked Loop Synthesisers 
We begin with a discussion of the control loop basics needed for the analysis of the dynamical behaviour of PLLs. Parameters that describe the phase fluctuations are introduced and the impact of the noise behaviour of a PLL on the receiver and transmitter performance in a wireless system is discussed. 
As the loop filter is a key element in any PLL, its dimensioning based on lock time and spurious requirements will be treated in great detail. We will also discuss sources of phase detector spurs, speed-up circuits and the problems linked to it. At the end of the session, we introduce fractional-N and s-d-PLLs. 

• Transfer Functions
• Stability Criteria
• Characteristic Function 
• Bode Plots
• Description of Phase Noise
• Impact of Phase Noise on the System Performance
• Lock Time, Natural Frequency, Damping Factor, and Phase Margin
• 2nd-, 3rd-, and High-order Filter 
• Phase and Frequency Modulation in a PLL 
• Sources of Phase Noise in a PLL and Its Simulation 
• Loop Filter Dimensioning from Lock Time Requirements 

Friday 

Antennas and Propagation 
We explain parameters describing antennas and discuss the relationships between them. Antenna types for small and handheld devices are introduced; their advantages and disadvantages will be discussed from a practical point of view. Then we will consider the propagation of RF waves in free space and inside buildings, and introduce methods of predicting the maximum reach of a RF link. At the end of the session practical hints for the measurement of antenna parameters are given. 

• Antenna Parameters 
• Electrical Antennas
• Magnetical Antennas 
• Practical Comparison of Antenna Types for an Example Application 
• The RF Link Budget
• Path Loss Prediction in Free Space and Inside Buildings
• Multipath Effects and Their Mitigation
• Measurement of Antenna Parameters 

Application Example 
The course concludes with an exercise starting with the requirements of a simple practical design task, ending up with the practical implementation using ICs including PCB layout and antenna. 

Regular Course Fee: EUR 2995

Early Registration Course Fee: EUR 2725
This applies to firm registrations received 2 months before course start. 

University Student and Faculty Rate:
Two university participants are welcome to attend for one course fee if payment is to be made from university funds.

Deliverables:
The course fee covers tuition, course material, and the day conference packages (morning/afternoon refreshments, lunches, etc.) paid on your behalf to the course venue. Accommodation is not included.

Payment before course start.