The radio frequency and microwave field deals with AC signals, with frequencies ranging from 100MHz to 1,000GHz. Radio frequencies usually refer to signals from…
Category: RF Electronic Devices and Systems
RF Electronic Devices and Systems Design: Preface
Aim of the study element
To introduce the principles and basic concepts RF and microwave theory, acquire knowledge about noises, non–linear effects, wireless systems, their design and measurement methodology and technology.
Learning outcome
Having successfully completed this element you will be able to:
- Successfully use transmission and electromagnetic and transmission line theories for microwave electric circuits.
- Be familiar with the basic concepts of RF and microwave devices.
- Make successful microwave analysis with CAD instrumentation and analytical tools.
- Have knowledge about non–linear effects and noises in microwave devices.
- Be introduced to and will be able to design the most commonly used microwave systems.
Covered topics
- Introduction into microwaves.
- Scattering parameters, impedance matching and tunning, Smith chart.
- Microwave network analysis.
- Microwave resonators.
- Power dividers and directional couplers.
- Microwave filters, and design of ferromagnetic components.
- Active microwave devices.
- Noise and non–linear distortion.
- Basics of microwave systems/applications.
The complete content for this module will be posted here soon.
RF Electronic Devices and Systems Design: Transmission Line Theory
Field-analysis: Standard circuit analysis, which suggests that physical dimensions of the circuit are much smaller than the electrical wavelength, is the analysis we used…
RF Microwave Devices: The Smith Chart
The Smith Chart is shown in Figure 1. It is a very useful tool for solving the problems of RF engineers with regards to…
RF Microwave Devices: The quarter-wave impedance transformer
The quarter-wave impedance transformer is a device that matches the transmission line and the impedance and is shown in Figure 1. Let's consider the…
RF Microwave Devices: Transmission line circuit for mismatched load and generator
Let's consider the most general case of a circuit, where we have the arbitrary loads Z1, Z2 and an arbitrary generator. The input impedance of…
RF Microwave Devices: Transmission line with losses
All transmission lines are characterised by conductivity and dielectric losses. In some cases losses can be neglected, but not in others. When losses are…
RF Microwave Devices: Fields in transmission lines
First, let's consider the general case of electromagnetic waves propagation in transmission lines. Transmission lines can be cylindrical with a parallel core, or can…
RF Microwave Devices: Rectangular waveguide
In the previous module we found out that in order to find the transmission line impedance and the fields in the transmission line, we…
RF Microwave Devices: Circular transmission lines
A circular waveguide is schematically depicted in Figure 5. To consider its parameters we will employ the polar coordinates with radial components ρ and…
RF Microwave Devices: Coaxial transmission line
A schematic coaxial transmission line is depicted in Figure 6 and are widely used both commercially and industrially, especially in connectors. To obtain the…