<abstract xmlns="http://www.w3.org/1999/xhtml"><p>A wideband transition from the coaxial TEM mode to the TM<sub>01</sub> 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.</p></abstract>

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.

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

University of Electronic Science and Technology of China (UESTC)

Journal of Electrical Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

{"article-title":"An in-line coaxial-to-circular waveguide transition at X band"}

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....

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

Published Online: Mar 20, 2020

Page range: 55 - 59

Received: Dec 19, 2019

DOI: https://doi.org/10.2478/jee-2020-0008

Keywords
circular waveguide, coaxial line, transition, TM mode

© 2020 Lei Xia et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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

Published Online: Mar 20, 2020

Page range: 55 - 59

Received: Dec 19, 2019

DOI: https://doi.org/10.2478/jee-2020-0008

Keywordscircular waveguide, coaxial line, transition, TM mode

© 2020 Lei Xia et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
circular waveguide, coaxial line, transition, TM mode