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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. |