Take a look at an early prototype open courseware/study guide that relies on reading assignments from a text together with online guides and exercises using a freeware RF simulator. We are judging the level of interest among users here on RFMentor.com and your feedback is appreciated. You will need a free account to access the material.
Mismatch uncertainty is the result of reflections adding and subtracting from each other when more than one interface is present.
To use the calculator below, input a values into the fields and hit the enter key. The result will appear below.
You can choose different input formats from the drop down menu.
To use the calculator below, input a value into the field and hit the enter key. The result will appear below.
You can choose different calculations from the drop down menu.
To use the calculator below, input a value into the field and hit the enter key. The result will appear below. You can choose different calculations from the drop down menu.
This workbook from the RF Technology Certification program demonstrates how to convert from dBm to milliwatts using approximation techniques without a calculator. An interactive calculator at the end demonstrates the process with values that you can enter yourself to practice.
This interactive web page allows you to look at the output waveforms from a switching-type mixer, as well as a pure multiplication. You can change the RF and LO frequencies and update the graph.
This demo is included in the Online RF Technology Certification program from Besser Associates.
Update November 2021: log-in no longer required to use this web app!
Use this handy Smith Chart web app to create matching networks. Easiest tool to use: drag elements right on the chart! Supports multiple frequencies, transmission line elements, etc. Note: please register for a free account for continued access to the Smith Chart app.
New HTML 5 Version Now Available A new version of the popular Smith Chart app that does not require any plug-in has now replaced the older Java applet version.
