GaAs-, InP- and GaN HEMT-based microwave control devices: what is best and why.(TECHNICAL FEATURE)(high electron mobility transistors)(Gallium Arsenide)

From: Microwave Journal | Date: May 1, 2005| Author: | Copyright information

The properties of a single-pole, single-throw (SPST) switch using various technologies (InP-, GaAs- and GaN-based HEMTs) are reviewed and discussed in the context of their suitability for microwave and RF control applications. Insertion loss, isolation, power-handling capabilities, distortion intercept points and the variation of their performance over a wide range of temperatures are reviewed and the origins of the mechanisms dictating their value are discussed. Due to the material's high breakdown voltage, GaN-based switches demonstrated better than +15 dBm power-handling ...

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