Download this article in .PDF format This file type includes high resolution graphics and schematics when applicable.Gallium-nitride semiconductor devices are quickly capturing the attention of high-frequency circuit designers for their excellent performance at high frequencies. In addition, many of these devices also offer good high-power signal-handling capabilities, such as the model TGS2355-SM monolithic-microwave-integrated-circuit single-pole, double-throw switch from TriQuint Semiconductor.