Spin wave linewidth measurement of microwave ferrite materials using rectangular resonant cavity with adjustable frequency
Sensors and Actuators A: Physical（2015）
Abstract
•Microwave source works at fixed frequency and an adjustable rectangular cavity is employed.•An adjustable high-power attenuator and an isolator simplify the system.•Frequencies of the cavity loaded with different samples can be adjusted to the same value with the frequency of the microwave source.•The new test system can measure spin wave linewidth of 1–35 Oe.
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Key words
Spin wave linewidth,Parallel excitation,Ferrite materials,Microwave measurement,Rectangular cavity
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