Balanced Device Evaluation For Mobile Phones Using Modal Decomposition Technique

摘要

The use of balanced components is becoming popular in hand-held phones. Example components are: surface acoustic wave (SAW) filters, amplifiers, and some of the I/O ports of large-scale integrated circuits. In some cases a component may have both balanced and unbalanced ports. In the past, balanced components were measured by using balanced-to-unbalanced transformers (baluns). This allows the use of a conventional unbalanced 50-ohm test system.