Antenna

This article explains the operation of a balun that transforms an unbalanced antenna structure into a balanced one.

This article presents the results of experiments to measure the effectiveness of lossy material in reducing RF emissions from perforated air vents such as those commonly used on computer enclosures. The results show good performance compared to those with conventional metal vents.

The EU’s Radio Equipment Directive (RED) places various obligations upon manufacturers of in-scope equipment. Some of these obligations are the same as those found in the Low Voltage and EMC Directives, but others are unique to the RED and can be complex and relatively demanding to comply with. This article identifies and discusses those obligations while suggesting that manufacturers need to continually monitor developments in legislation and standardization.

In this article, the author will identify two major types of single-conductor structure resonances and describe some case studies for both. He will then describe how design projects can quickly and easily be ‘de-risked’ from the possibilities of suffering either type of resonance by the use of low-cost field and circuit simulators and/or low-cost bench testing on physical ‘mock-ups’.

We are proud to carry on the tradition of sharing Banana Skins for the purpose of promoting education for EMI/EMC engineers.