A distributed active patch antenna model of a Josephson oscillator

Submitting author affiliation:
Stockholm University, Stockholm, Sweden

Beilstein Arch. 2022, 202286. https://doi.org/10.3762/bxiv.2022.86.v1

Published 15 Nov 2022

Preprint
cc-by Logo

Abstract

Optimization of Josephson oscillators requires a quantitative understanding of their microwave properties. A Josephson junction has a geometry similar to a microstrip patch antenna. However, it is biased by a dc-current, distributed over the whole area of the junction. The oscillating electric field is generated internally via the ac-Josephson effect. In this work I present a distributed, active patch antenna model of a Josephson oscillator. It takes into account the internal Josephson electrodynamics and allows determination of the effective input resistance, which couples Josephson current to cavity modes in the transmission line formed by the junction. The model provides full characterization of Josephson oscillators and explains the origin of low radiative power efficiency. Finally, I discuss the design of an optimized Josephson patch oscillator, capable of reaching high efficiency and radiation power for emission into free space.

Keywords:

How to Cite

When a peer-reviewed version of this preprint is available, this information will be updated in the information box above. If no peer-reviewed version is available, please cite this preprint using the following information:

Krasnov, V. M. Beilstein Arch. 2022, 202286. doi:10.3762/bxiv.2022.86.v1

Download Citation

Citation data can be downloaded as file using the "Download" button or used for copy/paste from the text window below.
Citation data in RIS format can be imported by all major citation management software, including EndNote, ProCite, RefWorks, and Zotero.

OTHER BEILSTEIN-INSTITUT OPEN SCIENCE ACTIVITIES