Analysis of coaxial-to-circular waveguide transition

Yamamoto, Tetsuya; Urabe, Kei; Tsuda, Hiroshi

doi:10.1109/aps.2014.6905074

Cited by 7 publications

(3 citation statements)

References 7 publications

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“…For some applications, it is advantageous to use an in-line adapter instead of a rightangle one. In-line CCWAs have mostly been studied for TEM-TM 01 mode conversion [17,18]. A thorough literature survey reveals that only two previous works [19,20] have been published on in-line TEM-TE 11 mode converters with broadband performance.…”

Section: Introductionmentioning

confidence: 99%

Computational Design of an In-Line Coaxial-to-Circular Waveguide Adapter with More Than an Octave Bandwidth

Altanzaya,

Heo,

et al. 2024

Symmetry

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This paper presents a computer-simulation-based design of an in-line, coaxial-to-circular waveguide adapter for converting the coaxial transverse electromagnetic (TEM) mode to the circular waveguide TE11 mode over more than a one-octave bandwidth. The proposed adapter consists of a coaxial-to-rectangular waveguide transformer employing a stepped-ridge converter and a rectangular-to-circular waveguide transformer employing a curved transition. The proposed adapter has been optimized using a commercial simulation tool. The dimensions of the designed adapter are given so that it can be verified by anyone who is interested. The designed adapter operates from 8.00 GHz to 22.95 GHz (2.87:1 bandwidth) with a reflection coefficient of less than −20 dB and a higher-order mode level of less than −25.0 dB.

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Section: Introductionmentioning

confidence: 99%

Computational Design of an In-Line Coaxial-to-Circular Waveguide Adapter with More Than an Octave Bandwidth

Altanzaya,

Heo,

et al. 2024

Symmetry

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“…Based on the complex power conservation technique, a case of coaxial probe feeding a circular waveguide is analyzed and verified with good experimental results [4]. In [5,6], Galerkin's method of moment was utilized to study this kind of transition structure, and further, it was studied from measurements [7]. On the other hand, the characteristics were discussed for some potential applications [8].…”

Section: Introductionmentioning

confidence: 99%

“…Using multistage impedance transformer to achieve bandwidth extension was a common way [10,11], while the multistage can also be approximated as a cone to realize the same purpose [12]. It is mentioned that such a transition can be orthogonal between the coaxial line and the circular waveguide [13,14]. In this work, an X-band transition from the coaxial line to circular waveguide with TEM mode to TM 01 mode is studied.…”

Section: Introductionmentioning

confidence: 99%

An in-line coaxial-to-circular waveguide transition at X band

Xia

et al. 2020

Journal of Electrical Engineering

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A wideband transition from the coaxial TEM mode to the TM01 mode of the circular waveguide with in-line input-output architecture is proposed in this paper. The transition employs multi-stage stepped impedance transformer to achieve wideband responses. Both mode transition and impedance matching characteristics are discussed in the paper. A demonstrator is developed and validated experimentally. As compared with some recently published reports, a better performance is observed. Moreover, the developed transition could facilitate the mechanical fabrication more easily. It can be found wide applications such as the circular waveguide based slot array antenna, the nondestructive detection, cracks inside the conductive pipes, and so on.

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Wideband TEM-TM01 Mode Transducer

Kurkan,

Bykov

2023

Russ Phys J

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Analysis of coaxial-to-circular waveguide transition

Cited by 7 publications

References 7 publications

Computational Design of an In-Line Coaxial-to-Circular Waveguide Adapter with More Than an Octave Bandwidth

Computational Design of an In-Line Coaxial-to-Circular Waveguide Adapter with More Than an Octave Bandwidth

An in-line coaxial-to-circular waveguide transition at X band

Wideband TEM-TM01 Mode Transducer

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