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Videos from Microwave Journal

Microwave Journal announces the release of Microwave Media, a new video platform for educational and demonstration videos and other multi-media content, such as webinars and slide shows. Microwave Media has hundreds of videos that are organized by application, product, event and company, including the popular Microwave Journal bi-monthly series, "Frequency Matters". The video platform allows editors, with a click of the mouse, to curate entire channels of quality content from sites such as YouTube and Vimeo.

RFPA Envelope Tracking

Author: 

Earl McCune

Operating Modes of Dynamic Power Supply Transmitter Amplifiers

Any amplifier operated with a varying supply voltage is actually a three-port circuit, having two inputs and one output. When an amplifier is characterized as a three-port for dynamic supply voltage operation, three separate operating modes...

FM Modulation Tutorial Applets

Author: 

Circuit Design Inc. (Japan)

This tutorial and accompanying applet allow you to experiment with FM parameters and see the results at different stages of demodulation. Of particular interest is the applet showing the output spectrum for an adjustable modulation index, based on the values of the Bessel functions for the various sidebands.

Wave on a String Demo

Author: 

Michael Dubson/Univ. of Colorado

This interactive demo allows you to experiment with waves and reflections under various conditions. The demonstration shows mechanical waves but the concepts are analogous to EM waves on transmission lines.

Watch a string vibrate in slow motion. Wiggle the end of the string and make waves, or adjust the frequency and amplitude of an oscillator. Adjust the damping and tension. The end can be fixed, loose, or open.

Microwaves 101

Author: 

"The Unknown Editor"

This website features a comprehensive glossary of RF and Microwave terms along with many "rules of thumb" practical articles. It is now affiliated with the IEEE Microwave Theory and Techniques society.

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