Using GTEM Cells for Immunity Testing

摘要

Many small- to medium-sized businesses that invested in in-house EMC RF test facilities are equipped only for RF emissions testing as opposed to having a full setup that includes RF immunity testing. Often this restriction is due to a past business decision based on financial prudence, but the decision also was likely based on the reduction of business risk. The business risk lies with possible punitive action by the government if other parties complain that your equipment interferes with the operation of their equipment. Confirming emissions compliance with an emissions test setup reduces this risk significantly. Sooner or later, there will be a change in the criteria on which the business decision was made. Sometimes the decision is revisited due to a new customer's insistence on proof of RF immunity compliance or possibly a complaint of product susceptibility from an existing customer.