Our new interactive switching mixers demonstration is now available here on RFMentor.com. In the brief video log below, I go through some of the interesting observations that you can make with this new tool. You can use the tool right here on RFMentor.com.
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.
Instructor John Wood has co-authored an article on the history of RF power amplifier linearization strategies. A membership in the IEEE MTT society is required for free access to the article.
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.
Instructor Arturo Mediano has published an article with In Compliance magazine on reducing VHF EMI from a flyback power supply.
Usually, EMC design guidelines in flyback literature are related with the switching effects of the output transistor to minimize emissions for conducted tests in the 9 kHz to 30 MHz range. But failure in radiated emissions in the VHF range is typical when testing the product for EMC compliance.
Until now, the focus in developing wireless communications formats has been almost exclusively on using novel techniques to overcome specific channel impairments (i.e. multipath, selective fading, etc). What has been missing is an assessment of the overall energy efficiency of the final hardware that is to be deployed. This paper introduces this type of analysis.
Open a free account here on RF Mentor to access our new tutorial webcast recordings. We offer several 30-60 minute recorded webcasts available for free to registered users on this site. You can register for a free account which will give you access to these tutorials as they become available. Create an account and log in with just a couple of clicks using your Facebook, Google, LinkedIn, or AOL account!
Instructor Earl McCune's presentation from the 2014 IEEE MTT symposium in Phoenix, AZ is available for downloading from the IEEE website. This presentation looks at the problem of providing high efficiency and linearity from a power transistor at the same time.
Instructor Steve Best has a new article in the recent issue of IEEE Antennas and Propagation magazine titled, Electrically Small Resonant Planar Antennas: Optimizing the Quality Factor and Bandwidth. You must be a member of the IEEE Antennas and Propagation society for free access to the article.
Instructor Waleed Khalil has co-published a couple of new papers that are freely accessible in the IEEE Access publication.
The first one is Phase Error Evaluation in a Two-Path Receiver Front-End With On-Site Coding: