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Abstract
Microwave reentrant cavities are used for many applications in science and engineering. The potential for both high mechanical tunability and high electric quality factors make them important tools in many areas. They are usually resonant cylindrical cavities with a central post, which makes a small gap spacing with the cavity wall. By adding an arbitrary number of extra posts, they are generalized to a type of multiple post reentrant cavity. This new approach has been theoretically studied but no experimental results have been presented. The main purpose of this work was to compare experimental modes with simulated ones from a reentrant cavity made of forty nine cylindrical posts. Each post could be moved using a screw in order to make tunable gap spacing between the post top and the cavity cover. Eight different gap setups were made making it possible to investigate thirty six different reentrant modes at room temperature. The lowest frequency percentage agreement between experiment and simulation was 91.31%, and the best one was 99.92%. Taking into account all the modes, 94.44% of them agreed above 96%. Thus, we have determined an experimental procedure suitable to investigate the reentrant modes from multiple post cavities. There is a wide range of potential applications for such cavities due to their unique features compared to conventional ones.
Original language | English |
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Article number | 125104 |
Journal | Review of Scientific Instruments |
Volume | 88 |
Issue number | 12 |
DOIs | |
Publication status | Published - 1 Dec 2017 |
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Dive into the research topics of 'Experiments match simulations in a multiple post reentrant cavity'. Together they form a unique fingerprint.Projects
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ARC Centre of Excellence for Engineered Quantum Systems EQuS
Milburn, G. (Investigator 01), White, A. (Investigator 02), Doherty, A. (Investigator 03), Tobar, M. (Investigator 04), Twamley, J. (Investigator 05), Bartlett, S. (Investigator 06), Biercuk, M. (Investigator 07), Bowen, W. (Investigator 08), Brennan, G. (Investigator 09), Duty, T. (Investigator 10), Gilchrist, A. (Investigator 11), Molina-Terriza, G. (Investigator 12), Rabeau, J. (Investigator 13), Reilly, D. (Investigator 14), Rubinsztein-Dunlop, H. (Investigator 15), Stace, T. (Investigator 16) & Vidal, G. (Investigator 17)
ARC Australian Research Council
1/01/11 → 31/12/17
Project: Research