Publication

Microwave Cavity Characterization for Rubidium Frequency Standards

Anton Evgeniev Ivanov
2016
Conference Papers

Abstract

We report our studies on the new designed magnetron-type microwave cavity operating in the TE011-like mode, at the rubidium hyperfine ground-state frequency of about 6.835 GHz. The properties of the cavity resonance were studied as a function of cavity temperature. Numeri-cal FEM simulations were performed and compared to the experimental results. They shed light on the influence of different design parameters on temperature-dependent behavior of the cavity.

Official source

https://infoscience.epfl.ch/entities/publication/65b91bd9-6bc9-47cf-9a7d-149470674558

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Anton Evgeniev Ivanov
2016
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/65b91bd9-6bc9-47cf-9a7d-149470674558

About this result

Related concepts (17)

Cavity magnetron

The cavity magnetron is a high-power vacuum tube used in early radar systems and currently in microwave ovens and in linear particle accelerators. A cavity magnetron generates microwaves using the interaction of a stream of electrons with a magnetic field, while moving past a series of cavity resonators, which are small, open cavities in a metal block. Electrons pass by the cavities and cause microwaves to oscillate within, similar to the functioning of a whistle producing a tone when excited by an air stream blown past its opening.

Atomic clock

An atomic clock is a clock that measures time by monitoring the resonant frequency of atoms. It is based on atoms having different energy levels. Electron states in an atom are associated with different energy levels, and in transitions between such states they interact with a very specific frequency of electromagnetic radiation. This phenomenon serves as the basis for the International System of Units' (SI) definition of a second:The second, symbol s, is the SI unit of time.

Temperature

Temperature is a physical quantity that expresses quantitatively the perceptions of hotness and coldness. Temperature is measured with a thermometer. Thermometers are calibrated in various temperature scales that historically have relied on various reference points and thermometric substances for definition. The most common scales are the Celsius scale with the unit symbol °C (formerly called centigrade), the Fahrenheit scale (°F), and the Kelvin scale (K), the latter being used predominantly for scientific purposes.

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