Linear/Small Signal Components

Pasternack's website offers a large selection of RF calculators and converters available for free for general use.

Pasternack's RF calculators and conversions section provides engineers valuable and easy-to-use tools ranging from complex mathematical formulas to simple conversions. Our RF and microwave calculators and converters will provide the figures you need for your radio frequency engineering needs. RF calculations and RF conversions include metric-standard, link budget, coax cable, power, attenuation, frequency and many more.

QUCS is a freeware circuit simulator that supports S-parameter analysis, among other types. It is available for Windows, Linux and OSX operating systems, with varying levels of support from the community.

This article describes the mathematical basis for tradeoffs among noise figure, gain and return loss of an LNA, with implementation in an EDA design tool

Short tutorial on various balun designs.

Pozar's new edition of Microwave Engineering includes more material on active circuits, noise, nonlinear effects, and wireless systems. Chapters on noise and nonlinear distortion, and active devices have been added along with the coverage of noise and more material on intermodulation distortion and related nonlinear effects. On active devices, there's more updated material on bipolar junction and field effect transistors.

It's Back! New chapters, examples, and insights; all infused with the timeless concepts and theories that have helped RF engineers for the past 25 years! RF circuit design is now more important than ever as we find ourselves in an increasingly wireless world. Radio is the backbone of today's wireless industry with protocols such as Bluetooth, Wi-Fi, WiMax, and ZigBee. Most, if not all, mobile devices have an RF component and this book tells the reader how to design and integrate that component in a very practical fashion.

Although this video is from 1959, it still provides and excellent explanation of wave properties and reflections.

In this tutorial from High Frequency Electronics magazine, Anthony Bichler describes a technique to achieve broadband matching networks using the Smith Chart. The tutorial article also includes a review of Smith Chart fundamentals. The technique that is described goes beyond simply keeping the quality factor of the network to a minimum.

This PDF guide from Huber+Suhner is a comprehensive look at connector performance issues. Many popular RF connector types are also described.