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RF Mentor is the home of recommended RF resources from Besser Associates. The site shows references that are used and/or created by Besser Associates instructors in the courses that we present. Many of our instructors are actively publishing new articles, blogs, textbooks and tutorials. You can see some of the latest activities listed below. For a complete list, visit the RF Mentor site...

Original content from RF Mentor/BesserNet authors and Besser Associates instructors.

Free Webcast: What Will 5G Be?

Author: 

Joe Boccuzzi

This webinar will provide an overview of areas 5G will address. We will begin with a sdiscussion on the shortcomings of present day cellular systems to highlight the items needing to be addressed in 5G. Provide the overall 5G goals and pillar use cases as defined by ITU. Several deployment options will be provided and summary of the 3GPP scenarios provided. Key system parameters will be discussed and the impact of 5G to a Cloud-RAN network architecture will be highlighted.

  • Shortcomings of existing Cellular Standards
  • 5G Goals & Use Cases
  • Deployments Options
  • System Parameters (Spectrum & Role of LTE)
  • Impact to C-RAN (Front Haul and Back Haul)
  • Conclusions

Our goal is to give you a very good understanding of the driving forces requiring 5G, the essential technologies required for 5G to be successful and its impact to our network. A recording and PDF of the slides isnow available to registered users of this site. Create your free account using your Facebook, LinkedIn, Google, or AOL account! Three Day Course Coming This May! Instructor Joe Boccuzzi will be presenting his three day course on the latest 5G developments this May 8-10 in San Diego, CA. Come learn from the instructor who has been presenting 5G courses for the top smart phone manufacturers in the world!


Mon, 30 Jan 2017 16:56:48 +0000

Femtocells: Design & Application

Author: 

Joe Boccuzzi

This in-depth resource provides comprehensive coverage of femtocells and how they integrate with existing 3G and emerging wireless protocols and standards. Femtocells: Design & Application provides a technical roadmap for migrating to femtocell technology, covering network architecture, media protocols, system performance, and security issues. Detailed architectural diagrams illustrate various deployment options. This is a practical guide to the pioneering technology that enables extended indoor service coverage.

Femtocells: Design & Application covers:

  • The impact on handset design with respect to cost, size, and power consumption
  • Cellular candidate radio access technologies that aid in femtocell deployment, including 3GPP LTE
  • System analysis, including indoor path loss models and 3GPP RF requirements
  • Femtocell network architecture and analysis
  • Registrations, call establishment, call release, and handoff scenarios
  • VoIP and Session Initiation Protocol (SIP)
  • Media protocols over IP
  • Security vulnerabilities and solutions
  • Managing Quality of Service in IP-based networks offering multimedia solutions
  • 3GPP IP Multimedia Subsystem (IMS) network architecture

Thu, 09 Mar 2017 19:03:16 +0000

Check the Lab for False Radiated Emissions

Author: 

Arturo Mediano

Successfully troubleshooting EMI/EMC problems isn't easy. You need time, you need a strategy, and you need to remain calm. Sometimes, you need a special "sixth sense" that only comes from experience because in some cases, your problems aren't even related with the EUT (equipment under test).


Wed, 22 Feb 2017 17:31:58 +0000

Near-field scanners let you see EMI

Author: 

Arturo Mediano

Article by instructor Arturo Mediano about near-field scanners.

I love near field probes because they let me "see" magnetic and electric fields with an oscilloscope or with a spectrum analyzer. They let locate sources of emissions in board, cables, and systems. Near-field scanners also let you see emissions, particularly all over a board. That's hard to do with a single probe.


Wed, 22 Feb 2017 17:26:12 +0000

Free Webcast Tutorial: MMIC Design Overview

Author: 

Ali Darwish

Instructor Ali Darwish has presented a free MMIC Design Overview webinar with Microwave Journal Magazine.

This webinar gives an overview of some of the practical strategies required to achieve success in the design of monolithic microwave integrated circuits (MMICs).

The following topics will be covered:

  • The advantages and limitations of MMIC Designs.
  • Active device modeling.
  • Calculating the lifetime of MMICs.
  • Modeling passive components.
  • Preventing unwanted oscillations.

Wed, 23 Nov 2016 21:28:17 +0000

Free Webcast Tutorial: Passive Components: Dividers, Couplers, Combiners

Author: 

Bob Froelich

Instructor Bob Froelich presents free webcast with Microwave Journal on Passive Components: Dividers, Couplers, and Combiners. View the webcast recording via Microwave Journal.

Outline:
Power Dividers

  • 2-way, 3-way and N-way
  • Isolation and loss
  • Phase relationships
  • Uneven power division
  • Combining RF power
  • Directional Couplers

Properties

  • Coupling, Isolation, and Directivity

Tue, 01 Nov 2016 22:14:01 +0000

The Effect of DC/LF Current in Ferrites for EMI

Author: 

Arturo Mediano

Arturo Mediano teaches courses on EMC/EMI and Signal Integrity for Besser Associates. He is a frequent contributor to industry magazines and journals on these topics. This article appears in the "Practical Tips" section of InCompliance magazine.

Ferrites for EMI suppression are usually chosen looking for high (resistive) impedance at the frequency of interest; but, sometimes, that ferrite is not working as expected. Perhaps you have saturation effects?


Fri, 06 May 2016 17:22:18 +0000

The EMC Blog

Author: 

Arturo Mediano

Arturo Mediano is a professor at University of Zaragoza (Spain) and founder of The HF-Magic Lab®, a specialized laboratory for design, diagnostic, troubleshooting, and training in the EMI/EMC/SI and RF fields. He is also an instructor for Besser Associates (CA, USA) offering public and on site courses in EMI/EMC/SI/RF subjects. In The EMC Blog, he'll provide interesting and useful information about EMI and EMC, including real-world circuits, waveforms, and design/troubleshooting techniques, interesting tools and instruments on the market, as well as EMI/EMC conferences and symposia around the world.


Thu, 21 Apr 2016 16:35:19 +0000

Using Spread Spectrum Techniques to Reduce EMI

Author: 

Arturo Mediano

Instructor Arturo Mediano has written an article for In Compliance magazine:

Digital and power electronic systems can reduce the radiated and conducted emissions profile using spread spectrum techniques. Typically, no more than 10-12dB can be obtained with those techniques but the result can be useful to comply with regulations...


Thu, 14 Apr 2016 18:48:30 +0000

Mixer Waveform Explorer

Author: 

Rex Frobenius

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.


Wed, 23 Mar 2016 21:09:13 +0000