Abstract
Microwave optics experiments operating at a 3.33-cm wavelength (9 GHz) are described that have an overall signal gain of 58 dB, which is achieved by using a 1000-Hz square-wave modulated reflex klystron and a high-gain, narrowband amplifier following a point-contact detector. A metal-plate electromagnetic lens is employed that has a gain of 22.5 dB relative to an isotropic radiator, produces a beam collimated to within 12 deg between half-power points, and has a 3.7% bandwidth around a center frequency of 9 GHz. This basic system was used to developed microwave versions of the Michelson interferometer, Bragg reflection, Brewter’s law and total internal reflection, and Young’s interference experiment. Measured radiation intensities for four signal sources are shown to lie well within Federal performance regulations established in 1971.
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