RF/microwave switch considerations

To optimize performance and repeatability in a test system, test-system designers must address a multitude of RF/microwave switch challenges that may seem overwhelming. For companies that want to control lead times, costs, and the physical layout of a custom switch solution, these challenges must be overcome. The challenges arise from a group of performance- and repeatability-degrading devices that are situated between the test equipment and the device under test. These devices are the switches, cables, signal conditioners, and the signal path control interface. This paper will assist engineers in minimizing the negative effects of these devices by exploring factors that must be considered when creating a custom RF/microwave switch solution.