Transmission Characteristics of Corrugated Elliptic Guide Considering Higher Order Modes in the Slot Region

Han, Tiancheng; Xu, Fan; Li, Guojian

doi:10.2528/pierl08011802

Cited by 1 publication

(3 citation statements)

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“…6), we have calculated the dispersion curves of the first three symmetric modes for a corrugated elliptical waveguide (i.e., the first three e T M 0n modes). The circles are taken from [18] considering higher-order modes in the slot region; good agreement is observed in all curves. Passbands and stopbands between adjacent modes are correctly identified.…”

Section: A Corrugated Elliptical Waveguidesmentioning

confidence: 57%

“…First, we have computed and compared the dispersion diagram and the interaction impedance of elliptical corrugated waveguides presented in [16] and [18]. Second, with our novel characterization method, we have studied the effects, in the k 0 −β diagram, of two nonconfocal periodic elliptical waveguides by shifting the elliptical iris in the x-and y-axes, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…Xu et al studied, using a field-matching method, the fundamental mode of the corrugated elliptical waveguide by taking no account of space harmonics, as well as neglecting higher-order modes in the slot region [16], [17]. Recently, Han et al have studied [18], by following a modematching approach, the dispersion characteristics of three even TM modes, considering space harmonics in the inner region and higher-order modes in the slot region. Nevertheless, all the methods considered are based on the computation of Mathieu functions, which cannot be very efficient in terms of computational cost.…”

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confidence: 99%

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Full-Wave Modal Analysis of Slow-Wave Periodic Structures Loaded With Elliptical Waveguides

Marini

Coves

Boria

et al. 2010

IEEE Trans. Electron Devices

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Abstract-In this paper, a novel full-wave method for the modal characterization of periodic structures loaded with elliptical waveguides is presented. This method relies on an integral equation formulation solved via the method of moments, which finally leads to the solution of a standard eigenvalue problem. The required modal spectrum of elliptical waveguides is determined through the boundary integral-resonant mode expansion technique. For validation purposes, the proposed analysis method is first successfully applied to periodic waveguide structures already considered in the technical literature. Then, our new algorithm is used to compute the related Brillouin diagrams and the interaction impedance of new periodic structures loaded with elliptical waveguides. Not only the main interacting mode (such as the T M 01 mode) is studied, but higher-order Floquet modes are also considered. These results have potential applications as slow-wave structures for high-power microwave devices and possibly filtering structures at millimeter-wave frequencies.

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Section: A Corrugated Elliptical Waveguidesmentioning

confidence: 57%

Section: Resultsmentioning

confidence: 99%

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confidence: 99%

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