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Babcock Training Academy

We deliver world-class training in complex systems to AUS/NZ defence, government and high tech markets

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Babcock Training Academy
Level 10 70 Franklin Street Adelaide  SA  5000

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T:   +61 (0)8 8440 9507
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Microwave and RF Circuit Design

Course Description

This popular 3-day short course delivered by Dr Rown Gilmore has been extensively updated to reflect modern trends. While still focusing on the design of discrete RF and microwave circuits to show classical microwave design techniques, examples of integrated circuits are presented to compare the ‘two worlds’. Impedance matching, device modeling, circuit stability,biasing, power output, distortion, power combining, and component losses and parasitics are examined, using state-of-the-art low- voltage transistors.

Theory is illustrated in a number of applications such as small-signal, large-signal, low-noise, and feedback amplifiers. Low noise design considerations are also introduced, using CAD modelling of reactive, resistive, and transformer types of applications. Reflecting its importance as a fundamental building block of most systems, amplifier design is treated exhaustively. Oscillators and mixers are also designed to meet demanding systems requirements. The importance of modeling parasitic elements that arise in design or when interconnecting components at high frequencies is reinforced. Nonlinear design techniques are examined using a harmonic balance simiulator using bipolar, FET, and HEMT devices. Active device models are evaluated for various amplifier applications, considering linearity, efficiency, and power requirements. Many examples are related to cellular telephone circuits in the 950 MHz to 3 GHz frequency range. “Real-life” circuits are discussed, considering parasitics, losses and circuit layout effects. Interactive circuit simulation techniques are used throughout to simulate such effects on circuit performance.

Please bring your own scientific calculator and laptop computer.

Target Audience

This is a practical course aimed at engineers, technicians, and project managers involved in radio, radar and telecommunications. It will especially suit those who may already have a strong technical discipline in a related area, and wish to either learn about the RF world or deepen their understanding of RF and microwave circuits and how they can be used in various systems.

Course Outline

To introduce linear active circuits, we first examine fundamental limitations posed by noise and distortion. We start with the fundamental principles of impedance matching and move on to examine the effect of mismatch on performance. The following areas are discussed in-depth:

Active RF Circuit Design

linear and nonlinear concepts; review of the Smith chart; impedance matching; classical RF circuit stability, graphical and analytical techniques; device stabilization: Lossy and lossless feedback; simultaneous conjugate match, bandwidth considerations; multi-stage amplifier design techniques.

Power Amplifier Design

Design for Optimal Power; Quasi- Linear Methods to Achieve Power Matching: Load Line Characterization, Load Pull; Characterization - Measurement and Prediction; Classes of Power Amplifiers: A, AB, B, C, and F; Harmonic Tuning to Optimize Efficiency; Distortion Reduction Techniques; Harmonic Balance Bipolar Amplifier Design Example (CDMA).

Low Noise (LC) Oscillators

Oscillator design considerations; Device-circuit interaction (series and shunt resonances); Phase noise; Microwave bipolar transistor (HBT) VCO design: Example 4 GHz.

Mixer Designs

Revision of diode mixers; Bipolar and MESFET mixer analysis; Comparison of mixer types; Modulators and image-reject mixers.

Course Details

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Extra Information Refer to Current Courses tab for schedule information.
Course location
Please register your interest in this course by contacting Babcock on +61 (0)8 8440 1498

Register Here!

Registering for one of our courses is easy! Simply fill out one of the below Course Registration Forms and return via email to training@babcock.com.au

Course Registration Form - Individual Registration Form

Course Registration Form - Group Registration Form

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GST Terms

All prices shown are Exclusive of GST. GST of 10% will be added to all invoices