Theoretical proposal for the experimental realisation of a monochromatic electromagnetic knot
dc.contributor.author | Cameron, R. P. | |
dc.contributor.author | Loffler, W. | |
dc.contributor.author | Stephan, Karl D. | |
dc.date.accessioned | 2021-08-24T18:51:27Z | |
dc.date.available | 2021-08-24T18:51:27Z | |
dc.date.issued | 2021-05 | |
dc.description.abstract | We propose an antenna designed to generate monochromatic electromagnetic knots and other 'unusual electromagnetic disturbances' in the microwave domain. Our antenna is a spherical array of radiating dipolar elements configured to approximate the desired electromagnetic field near its centre. We show numerically that a specific embodiment of the antenna with a radius of 61.2 cm and only 20 element pairs driven at a frequency of 2.45 GHz can yield linked and torus-knotted electric and magnetic field lines approximating those of an 'electromagnetic tangle': a monochromatic electromagnetic knot closely related to the well-known Rañada–Hopf type electromagnetic knots but simpler in its construction. The antenna could be used to locally excite plasmas. | |
dc.description.department | Engineering | |
dc.format | Text | |
dc.format.extent | 7 pages | |
dc.format.medium | 1 file (.pdf) | |
dc.identifier.citation | Cameron, R. P., Löffler, W., & Stephan, K. D. (2021). Theoretical proposal for the experimental realisation of a monochromatic electromagnetic knot. Journal of Optics, 23, 06. | |
dc.identifier.doi | https://doi.org/10.1088/2040-8986/abfc33 | |
dc.identifier.issn | 2040-8986 | |
dc.identifier.uri | https://hdl.handle.net/10877/14443 | |
dc.language.iso | en | |
dc.publisher | IOP Science | |
dc.rights.holder | © 2021 The Author(s). | |
dc.rights.license | This work is licensed under a Creative Commons Attribution 4.0 International License. | |
dc.source | Journal of Optics, May 2021, Vol. 23, No. 6, Article 064006. | |
dc.subject | electromagnetic knots | |
dc.subject | microwaves | |
dc.subject | antenna theory | |
dc.title | Theoretical proposal for the experimental realisation of a monochromatic electromagnetic knot | |
dc.type | Article |