Transition Structure Between Coaxial Cable and Dielectric Rod Waveguide in Microwave Frequency

Frontiers in Physics

Sai-Wai Wong¹  Yin Li¹  Shi-Yan Zhou¹  Jing-Yu Lin² 

[1] College of Electronics and Information Engineering, Shenzhen University, Shenzhen, China;School of Electrical and Data Engineering, University of Technology Sydney, Ultimo, NSW, Australia;

关键词: coaxial cable;    dielectric rod waveguide (DRW);    microwave frequency;    transition;    microwave frequency band;   

DOI  :  10.3389/fphy.2021.765801

来源: DOAJ

【 摘 要 】

The dielectric waveguide in THz and millimeter circuit is widely researched. However, it is rarely researched in a microwave frequency. In this article, a dielectric rod waveguide (DRW) is proposed with low transmission loss in microwave frequency. For the purpose of impedance matching, a transition section composed of the metal-coated dielectric cavity, and a dielectric horn is presented to match the impedance between the coaxial cable and the dielectric rod waveguide. Finally, the dielectric rod waveguide and the transition section have been fabricated for experimental verification. To obtain the propagation constant of the DRW, the thru-line (TL) calibration is used in measurement. The simulation and measurement results show an effective conversion between the coaxial cable and the dielectric rod waveguide.

【 授权许可】

Unknown