Compliance and EMC

Amplifier / Antenna Combinations

5 Volts / Meter Field Strength

10 Volts / Meter Field Strength 

20 Volts / Meter Field Strength

50 Volts / Meter Field Strength

100 Volts / Meter Field Strength

200 Volts / Meter Field Strength

Conducted Immunity Testing Overview

Discusses the concept of electromagnetic immunity testing by means of injecting current into the input and output cables of a system under test.

Dual Directional Couplers

We often overlook the contribution of the ubiquitous Dual Directional Coupler in modern EMC immunity test set-ups.  While seasoned EMC test veterans have voluntarily used directional couplers for years, they are now required by many EMC standards when conducting a fully compliant test.

EMC Problems and Their Solutions as Experienced in the EMC Test Lab

This paper will discuss actual EMC problems encountered in electronic products.  The EMC problems are those encountered in EFT, Surge, ESD, power fail and emission testing.  This paper will show how to correct these problems using various methods.  It will make a case as to why EMC problems should be considered in the initial design of a product before it is submitted to the EMC test lab.  Using these methods will result in a product of higher quality and lower cost.

EM Test Automotive Transient Generator Product Selector

Updated February 6, 2003

Equipment Selection Criteria for IEC 1000-4-3 Testing

The EMC Directive adopted by the European Union requires that , for the first time, manufacturers must test their product for intrinsic electromagnetic immunity

Importance of Load Tolerance in Specifying RF Power Amplifiers for Radiated Immunity/Susceptibility Testing

Real world variations in load VSWR cause Class AB amplifiers to "foldback".  Minimum Available Power (MAP) is presented as a clear and distinguishing measure of a Class A amplifier's ability to deliver rated power under these realistic test conditions.

Power Amplifier Requirements for IEC61000-4-6 Testing

Answers to the commonly asked question: How much power is required to perform RF conducted immunity testing according to IEC61000-4-6?

Pulse TWTAS

Amplifier Research's PULSE traveling wave tube amplifiers (TWTAs) offer a cost-effective source of high RF power for applications in which only a low to moderate RF duty cycle is required.

Radiated Immunity Recs for EMC 89/336/EEC and MDD 93/42/EEC

Amplifier Research packages for radiated immunity testing per the European Union's EMC Directive (89/226/EEC) and the Medical Devices Directive (MDD 93/42/EEC)

RF Conducted Immunity and Bulk Current Injection Testing Article

The CWS500D is built as a modular test system to control RF immunity tests.

Typical Radiated RF Susceptibility Test Configuration

For test applications which call for real-time testing.

Update on Proposed IEC 61000-4-4 (EFT) Standard Changes

The most significant changes in the standard are in paragraph "5 Test Levels" and in paragraph "6 Test Equipment" specifying the generator and the coupling/decoupling networks.

Update on Proposed IEC 61000-4-4 (EFT/Burst Test)

Reprinted from Interference Technology: Annual Guide 2003 by Harold Kunkel (EM Test AG) and Tom Moyer (Amplifier Research)

Wireless Telecommunications Testing with Ultra-Linear "S" Series Amplifiers

Focuses on the "S" series, a line of microwave power amplifiers that has been optimized for wireless telecommunications test use.

EMC Antenna Fundamentals

 The antenna is an essential part of a test system.   In some applications, selecting the best antenna for the job may be very important. Unfortunately, selecting the right antenna for the job can be a difficult task, because of variation in the way manufacturers specify and describe them. This article explains the basic terminologies employed and their limitations.

 

Using Tapered Chamber to Test Antennas

An industry expert offers some suggestions for dealing with the challenges of testing today's high-frequency antennas.

New Broadband EMC Double-Ridge Guide Horn Antenna

Broadband antennas, due to the large frequency bands required by standards, are the work horse of electromagnetic compatibility testing.  Traditionally the antenna parameter of interest to the EMC engineer was the antenna factor.  The advent of higher frequency testing has brought the development of a new double-ridge guide horn design.
      

A Power Engineer’s Guide to Navigating the

EMC Directive

The EMC Directive introduces a mass of test and measurement requirements that many engineers actively try to avoid. Understanding the basics is no longer optional—and is nowhere near as difficult as you may have been led to believe.

 

 
   

Amplifier / Antenna Combinations

5 Volts / Meter Field Strength

10 Volts / Meter Field Strength

20 Volts / Meter Field Strength

50 Volts / Meter Field Strength

100 Volts / Meter Field Strength

200 Volts / Meter Field Strength

Conducted Immunity Testing Overview

Discusses the concept of electromagnetic immunity testing by means of injecting current into the input and output cables of a system under test.

Dual Directional Couplers

We often overlook the contribution of the ubiquitous Dual Directional Coupler in modern EMC immunity test set-ups.  While seasoned EMC test veterans have voluntarily used directional couplers for years, they are now required by many EMC standards when conducting a fully compliant test.

EMC Problems and Their Solutions as Experienced in the EMC Test Lab

This paper will discuss actual EMC problems encountered in electronic products.  The EMC problems are those encountered in EFT, Surge, ESD, power fail and emission testing.  This paper will show how to correct these problems using various methods.  It will make a case as to why EMC problems should be considered in the initial design of a product before it is submitted to the EMC test lab.  Using these methods will result in a product of higher quality and lower cost.

EM Test Automotive Transient Generator Product Selector

Updated February 6, 2003

Equipment Selection Criteria for IEC 1000-4-3 Testing

The EMC Directive adopted by the European Union requires that , for the first time, manufacturers must test their product for intrinsic electromagnetic immunity

Importance of Load Tolerance in Specifying RF Power Amplifiers for Radiated Immunity/Susceptibility Testing

Real world variations in load VSWR cause Class AB amplifiers to "foldback".  Minimum Available Power (MAP) is presented as a clear and distinguishing measure of a Class A amplifier's ability to deliver rated power under these realistic test conditions.

Power Amplifier Requirements for IEC61000-4-6 Testing

Answers to the commonly asked question: How much power is required to perform RF conducted immunity testing according to IEC61000-4-6?

Pulse TWTAS

Amplifier Research's PULSE traveling wave tube amplifiers (TWTAs) offer a cost-effective source of high RF power for applications in which only a low to moderate RF duty cycle is required.

Radiated Immunity Recs for EMC 89/336/EEC and MDD 93/42/EEC

Amplifier Research packages for radiated immunity testing per the European Union's EMC Directive (89/226/EEC) and the Medical Devices Directive (MDD 93/42/EEC)

RF Conducted Immunity and Bulk Current Injection Testing Article

The CWS500D is built as a modular test system to control RF immunity tests.

Typical Radiated RF Susceptibility Test Configuration

For test applications which call for real-time testing.

Update on Proposed IEC 61000-4-4 (EFT) Standard Changes

The most significant changes in the standard are in paragraph "5 Test Levels" and in paragraph "6 Test Equipment" specifying the generator and the coupling/decoupling networks.

Update on Proposed IEC 61000-4-4 (EFT/Burst Test)

Reprinted from Interference Technology: Annual Guide 2003 by Harold Kunkel (EM Test AG) and Tom Moyer (Amplifier Research)

Wireless Telecommunications Testing with Ultra-Linear "S" Series Amplifiers

Focuses on the "S" series, a line of microwave power amplifiers that has been optimized for wireless telecommunications test use.

EMC Antenna Fundamentals

 The antenna is an essential part of a test system.   In some applications, selecting the best antenna for the job may be very important. Unfortunately, selecting the right antenna for the job can be a difficult task, because of variation in the way manufacturers specify and describe them. This article explains the basic terminologies employed and their limitations.

 

Using Tapered Chamber to Test Antennas

An industry expert offers some suggestions for dealing with the challenges of testing today's high-frequency antennas.

New Broadband EMC Double-Ridge Guide Horn Antenna

Broadband antennas, due to the large frequency bands required by standards, are the work horse of electromagnetic compatibility testing.  Traditionally the antenna parameter of interest to the EMC engineer was the antenna factor.  The advent of higher frequency testing has brought the development of a new double-ridge guide horn design.
      

A Power Engineer’s Guide to Navigating the

EMC Directive

The EMC Directive introduces a mass of test and measurement requirements that many engineers actively try to avoid. Understanding the basics is no longer optional—and is nowhere near as difficult as you may have been led to believe.