Broadband Gallium Nitride Power Amplifier for Microwave Calibration Instrumentation

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Laboratory test and measurement (T&M) equipment used by design engineers and researchers is periodically calibrated to ensure measurement accuracy and precision. Specialized, ultra-high performance, instrumentation is used to calibrate benchtop T&M equipment. Queen's University and Guildline Instruments (Smiths Falls, Ontario) have partnered in this research project to develop a broadband high-power microwave power amplifier as a calibration instrument for microwave power meters, spectrum analyzers and precision parts such as attenuators and resistive loads. The power amplifier will be realized using gallium-nitride (GaN) technology due to its proven high-output power capabilities at high-frequencies and its robust performance over temperature. Queen's researchers have extensive experience in the design of microwave circuits and systems using GaN and silicon technologies. Guildline Instruments is a world leader in the design and manufacturing of calibration equipment and metrology standards. Through this project Highly Qualified Personnel (HQP) will be trained in the design, simulation and testing of microwave systems at the apex of the technology performance space. Meanwhile, Guildline personnel will gain important technology insights that will guide future product development at the company.