Abstract
Hall effect and radiation pressure, as different manifestations of the same basic phenomenon, have both been successfully applied to the measurement of microwave power, using semiconductors for the purpose. Attention is called to the part played by displacement current at these frequencies and the conclusion is drawn that such currents are much more significant in relation to radiation pressure than to Hall effect. A wattmeter depending for its operation on the Hall effect is described and it is shown to give accurate measurements whatever the nature of the load.
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