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Content that is free for public consumption with no subscription.

Mixer Lectures

Author: 

S. Long, UCSB

These lecture notes provide comprehensive coverage of mixer types as used in RF and microwave applications. Three approaches to producing the multiplication of two signals are described: using nonlinear behavior of a diode or transistor, switching, and sampling. Major mixer topologies are also introduced. These notes may be more detailed than what many people are looking for, but they are still worth reading over to gain an understanding of the different mixer strategies.

Mixer Basics Primer

Author: 

Ferenc Marki & Christopher Marki, Ph.D.

This app note gives a good understanding of the operation of switching type mixers. "Switching type" refers to the implementation of the mixing operation by using the diode or transistor as a switch that turns the RF signal on and off or inverts its polarity at the LO frequency. Another type of mixer implementation is to bias the diode so that it operates in the square law region so that the output includes the square of the input.

Spectrum and Network Measurements

Author: 

Robert Witte

This book was featured on the Keysight RF Test blog with the following recommendation: "This book collects the essentials in one place, with the techniques, equations, explanations and examples that you’ll need to do the whole measurement job." The earliest version of this book appeared in the 1990's, the new edition has updates to cover recent developments such as "real-time" spectrum analyzers.

Keysight RF Test Blog

Author: 

Ben Zarlingo

This blog explores various topics in RF test and measurement, from the latest equipment to best practice techniques to ensure consistent results and understand uncertainty limitations.

My name is Ben Zarlingo and I'm an applications specialist for Keysight Technologies. I've been an electrical engineer working in test & measurement for several decades now, mostly in signal analysis. For the past 20 years I've been involved primarily in wireless and other RF testing.

Babbage Difference Engine

Submitted by rfrobenius on
Babbage Difference Engine closeup

This remarkable machine was on display and featured in live demonstrations at the Computer History Museum in Mountain View, CA until it was removed in January 2016 (the unit was a second copy on loan from a private benefactor of the project, Nathan Myhrvold, formerly chief technology officer and Group VP at Microsoft). The first reconstructed Babbage engine is on public display at the Science Museum in London.

Subject Area: 

Electronic Warfare and Radar Systems Engineering Handbook

Author: 

Naval Air Warfare Center Weapons Division

This public-domain book provides concise descriptions of concepts related to RF, radar, microwave components, and more.

This handbook is designed to aid electronic warfare and radar systems engineers in making general estimations regarding capabilities of systems. This handbook is sponsored by the NAVAIR Director of Electronic Warfare/Combat Systems Department.

Antenna Engineering Handbook

Author: 

John Volakis

Edited by John L. Volakis, one of the world's leading authorities in antenna engineering, this trusted resource covers all the classic antenna types plus many new types and designs used in communications systems, satellites, radars, and emerging applications from WLAN to automotive systems to biomedical to smart antennas.

1-click Login Using Other Services (LinkedIn, Facebook, etc.)

Submitted by admin_rfmentor on

Now you can create an account and log in using your Facebook, LinkedIn, Google or AOL account. The whole process takes just a couple of clicks! If you're already logged in on your browser with one of those accounts, you can sign in with just a single click.
On the log-in form, just click one of the icons for the service you wish to use for your account. You'll be asked to approve RFMentor's use of that login to identify yourself, and then that's about it.

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