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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: RF and Microwave Filters


Bob Froelich

Enjoy the recording of our free webcast with Microwave Journal magazine on RF and Microwave Filters.

This webinar introduces the student to core filter concepts, parameters, and topologies.

  • Low Pass Filters with Lumped Elements
  • Using Filter Tables
  • Transformation to Band Pass
  • The Importance of Q
  • Impedance Inverter Concept
  • Coupled-Resonator Filters


Thu, 04 May 2017 23:48:34 +0000

Evaluate Shielding Effectiveness With Your VNA


Arturo Mediano

In this article, instructor Arturo Mediano shares a tip on how you can use the vector network analyzer to gauge the shielding effectiveness of different materials.

Thu, 06 Apr 2017 03:28:37 +0000

Free Webcast: Introduction to Radar


Scott Bullock

A recording of instructor Scott Bullock's one hour webcast on Introduction to Radar is now available.

The following topics are covered:

  • Radar Detection and Ranging
  • Pulse vs Continuous wave with applications
  • Radar Modulation
  • Radar Path Budget - Basic Radar Equation
  • Radar Range Equation
  • Range Ambiguity and Mitigation
  • Maximum and Minimum Detectable Range
  • Plan Position Indicator – PPI and A-Scope

Wed, 29 Mar 2017 17:24:47 +0000

dBm to Milliwatts Calcula-torial


Rex Frobenius

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.

Wed, 29 Mar 2017 04:36:27 +0000

Femtocells: Design & Application


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


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


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: What Will 5G Be?


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

Free Webcast Tutorial: MMIC Design Overview


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

The Effect of DC/LF Current in Ferrites for EMI


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