A Broadband Circular Waveguide Rotary Joint with Substrate Integrated Coaxial Line Feeder

2021 ◽  
pp. 1-1
Author(s):  
Jin Shi ◽  
Wenhao Xue ◽  
Zhidan Shen ◽  
Gangxiong Wu ◽  
Liang Zhao
Keyword(s):  
Circular Waveguide ◽  
Coaxial Line ◽  
Rotary Joint ◽  
Line Feeder

scholarly journals A Linear Microwave Plasma Source Using a Circular Waveguide Filled with a Relatively High-Permittivity Dielectric: Comparison with a Conventional Quasi-Coaxial Line Waveguide

2021 ◽  
Vol 11 (12) ◽  
pp. 5358
Author(s):  
Ju-Hong Cha ◽  
Sang-Woo Kim ◽  
Ho-Jun Lee
Keyword(s):  
Electron Density ◽  
Microwave Plasma ◽  
Circular Waveguide ◽  
Coaxial Line ◽  
Plasma Source ◽  
Tangential Plane ◽  
High Permittivity ◽  
Deposition Area ◽  
Extended Plasma ◽  
Transverse Electromagnetic

For a conventional linear microwave plasma source (LMPS) with a quasi-coaxial line transverse electromagnetic (TEM) waveguide, a linearly extended plasma is sustained by the surface wave outside the tube. Due to the characteristics of the quasi-coaxial line MPS, it is easy to generate a uniform plasma with radially omnidirectional surfaces, but it is difficult to maximize the electron density in a curved selected region. For the purpose of concentrating the plasma density in the deposition area, a novel LMPS which is suitable for curved structure deposition has been developed and compared with the conventional LMPS. As the shape of a circular waveguide, it is filled with relatively high-permittivity dielectric instead of a quasi-coaxial line waveguide. Microwave power at 2.45 GHz is transferred to the plasma through the continuous cylindrical-slotted line antenna, and the radiated electric field in the radial direction is made almost parallel to the tangential plane of the window surface. This research includes the advanced 3D numerical analysis and compares the results with the experiment. It shows that the electron density in the deposition area is higher than that of the conventional quasi-coaxial line plasma MPS.

A wideband converter of the main mode of the coaxial line into the lowest symmetric mode of a circular waveguide

2008 ◽  
Vol 51 (5) ◽  
pp. 724-728 ◽  
Author(s):  
D. N. Bykov ◽  
N. M. Bykov ◽  
A. I. Klimov ◽  
I. K. Kurkan ◽  
V. V. Rostov
Keyword(s):  
Circular Waveguide ◽  
Coaxial Line ◽  
Symmetric Mode ◽  
Main Mode

Broad-band measurements of dielectric permittivity in coaxial line using partially filled circular waveguide

2020 ◽  
Vol 91 (3) ◽  
pp. 035106 ◽  
Author(s):  
Šarūnas Svirskas ◽  
Džiugas Jablonskas ◽  
Saulius Rudys ◽  
Saulius Lapinskas ◽  
Robertas Grigalaitis ◽  
...  
Keyword(s):  
Dielectric Permittivity ◽  
Broad Band ◽  
Circular Waveguide ◽  
Coaxial Line
Sign in / Sign up

Export Citation Format

Share Document