A novel cylindrical TE2,1 mode converter

Tools

Constable, D. A. and Fampris, X. S. and Ronald, K. and He, W. and Whyte, C. G. and Robertson, C. W. (2010) A novel cylindrical TE2,1 mode converter. Review of Scientific Instruments, 81 (9). 094702. ISSN 0034-6748 (https://doi.org/10.1063/1.3480994)

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Abstract

A novel, compact arrangement for Ka-band mode couplers, which convert a rectangular waveguide TE1,0 to cylindrical waveguide TE2,1 mode, has been designed, constructed, and tested. The design features a set of longitudinal slots, positioned in regions of negligible current flow for the TE2,1 mode, allowing its propagation to be preferentially favored, by suppression of the fundamental TE1,1 mode. Numerical simulations and experimental measurements display good agreement, showing transmission of the intended TE2,1 mode at levels of better than -5 dB, from a frequency of similar to 37.5 to 41 GHz. Subsequent farfield measurements confirm the presence of the TE2,1 mode, demonstrating good agreement when compared with analytical expectations. Such a device would be an ideal candidate for an application where mode purity, bandwidth, and ease of construction are of primary importance and where the transmission efficiency is of limited concern. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3480994]

ORCID iDs

Constable, D. A., Fampris, X. S., Ronald, K. ORCID logoORCID: https://orcid.org/0000-0002-8585-0746, He, W. ORCID logoORCID: https://orcid.org/0000-0001-7018-0527, Whyte, C. G. ORCID logoORCID: https://orcid.org/0000-0002-5431-2443 and Robertson, C. W. ORCID logoORCID: https://orcid.org/0000-0002-3552-466X;
  • Item type:Article
    ID code:31285
    Dates:
    Date
    Event
    17 September 2010
    Published
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:21 May 2011 14:36
    Last modified:11 Nov 2024 09:45
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/31285
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