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EEWeb Sites of the Day

Microwave Antenna Calcualtor

Posted Nov 21st 2010

This site offers a free microwave antenna calculator download.
RF Cafe

Posted Nov 22nd 2010

Explore the world of RF cafe, run by engineer Kirt Blattenberger. RF cafe is a hand-crafted site full of intersting rf tools, resources, and factoids.
Qucs Universal Circuit Simulator

Posted Dec 05th 2010

The Qucs universal circuit simulator is licensed under the GPL and supports circuit simulation types for the following: DC, AC, S-parameter, Harmonic Balance analysis, and noise analysis. The program is available in compiled...
Engineers.com Software and Resources

Posted Dec 26th 2010

Engineers.com has many great resources for the RF engineer. There are four free programs to help an RF designer: Pi Pad Calculator, T-Pad Calculator, Coaxial Calculator, and a Wave Guide Calculator. Their paid software eSeptum is...
The Basics of Patch Antennas

Posted Mar 03rd 2011

This article introduces some of the basic concepts of patch antennas. The main focus will be on explaining the general properties of patch antennas by using the simple rectangular probefed patch. It will cover topics including:...
United States Frequency Allocations

Posted Apr 05th 2011

When trouble shooting system issues it can be nice to understand what is going on in the radio spectrum. This chart is provided by the US government and can be very handy. Take a look!
Taking Care of Equipment and Cable Connectors

Posted Apr 19th 2011

We have covered this site once before, but I felt like it was worth covering their page on connector care. This website offers some great tips for properly caring for equipment connectors. It is worth the time to read if you have...
Beis - Electronics

Posted Jun 30th 2011

This a hobby electronics site with a number of interesting projects. They also have some nice tutorials. A few of the topics are:

* Audio ADCs and DACs
* A Dual Channel Preamplifier
* Digital IIR Filters
* Digital Audio Peak...
Microwaves101

Posted Jul 18th 2011

Microwaves101 is a great online resource for microwave engineers. The site features microwave calculators, microwave encyclopedia, microwave acronym dictionary, and general microwave engineering resources.
RF Current - Microwave Resource Site

Posted Aug 02nd 2011

RF Current has many great resources and technical articles related to the area of RF/Microwave engineering. The RF Current describes the purpose of their site as: "To provide information on RF filter design for students,...
VidaRF - RF Components and Adapters

Posted Oct 09th 2011

Check Out VidaRF’s new website – VidaRF designs and manufactures RF components and maintains a strict focus on customer service. They will build to your specs and then stock and ship to your schedule so you never have to wait...
everything RF - An RF Component Search Engine

Posted Oct 17th 2011

Everything RF has very impressive RF component parametric search capability. They have over 30,000 RF & Microwave components from more than 100 manufacturers. The site allows you to search for specific RF components and you can...
TRM Microwave Designs

Posted Nov 06th 2011

Here is a microwave company that you might not be familiar with. TRM Microwave designs and manufactures custom passive RF and microwave components, integrated assemblies and subsystem solutions for space, defense and commercial...
Filter Design Application - eSeptum

Posted Dec 25th 2011

This filter design software application is by the Engineers Club. They offer some neat online resources and calculators in the RF field. Their filter design software eSeptum is powerful and includes some of these featres:

* Your...
3D Smith Chart

Posted Jan 19th 2012

The 3D Smith chart Java tool is a new design instrument for all the active and passive microwave circuits:

- It is based on a June 2011 IEEE MWCL Journal paper “A 3D Smith chart based on the Riemann sphere for Active and Passive...