Experimental determination of attenuation in corrugated circular waveguides

Olver, A.D.; Clarricoats, P.J.B.; Chong, S.L.

doi:10.1049/el:19730310

Cited by 8 publications

(2 citation statements)

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“…The theory for modes of corrugated metallic waveguides has been previously developed [1], [2], [3], [4]. The original application of corrugated waveguides was in the development of horn antennas, but recent applications of straight corrugated waveguide have led to a large literature devoted to that specific topic.…”

Section: Introductionmentioning

confidence: 99%

Linearly Polarized Modes of a Corrugated Metallic Waveguide

Kowalski

Tax

Shapiro

et al. 2010

IEEE Trans. Microwave Theory Techn.

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Abstract-High power, high frequency microwave radiation can be transmitted with very low loss in oversized corrugated metallic waveguide. We derive a linearly polarized (LPmn) mode basis set for these waveguides for the special case of quarter wavelength depth corrugations. We also show the relationship between the LPmn modes and the conventional modes (HEmn, EHmn, TE0n, TM0n) of the corrugated guide. The loss in a gap or equivalent miter bend in the waveguide is calculated for single mode and multi-mode propagation on the line. In the latter case, it is shown that modes of the same symmetry interfere with one another, causing enhanced or reduced loss, depending on the relative phase of the modes. If two modes with azimuthal (m) indeces that differ by one propagate in the waveguide, the resultant centroid and the tilt angle of radiation at the guide end are shown to be related through a constant of the motion. These results should be useful in describing the propagation of high power, linearly polarized radiation in these overmoded, corrugated waveguides.

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Section: Introductionmentioning

confidence: 99%

Linearly Polarized Modes of a Corrugated Metallic Waveguide

Kowalski

Tax

Shapiro

et al. 2010

IEEE Trans. Microwave Theory Techn.

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show abstract

“…[2,3] In the United Kingdom, a great deal of research into corrugated horns has been done by Clarricoats and his colleagues at Queen Mary College. [4][5][6][7][8][9] In our previous work, we have investigated the propagation and radiation characteristics of circular corrugated groove waveguides under the conditions of neglecting space harmonics and assuming the corrugations infinitely thin. [10] Including space harmonics in the interior region of the waveguide and a z independent TM mode in the slot region, we derived the dispersive equation of the waveguide.…”

Section: Introductionmentioning

confidence: 99%