Methods for Attenuating and Terminating Waves in Ridge Gap Waveguide at W_Band Carbon-Loaded Foam Carbonyl Iron Paint and Nickel Plating
Paper in proceeding, 2021

Several methods for electromagnetic waves matched termination and attenuation in a ridge gap waveguide (RGW) are experimentally investigated at W-band. At these frequencies, the implementation of matched loads and attenuators is especially complicated due to small sizes of RGW design features that limits application of traditional waveguide absorbing structures (e.g., absorbing sheets and finlines, ferrite insets, carbonyl iron walls, etc.). The following three techniques are considered: (i) filling an RGW gap with a carbon-loaded foam; (ii) covering a ridge (and pins) with a carbonyl iron paint; (iii) selective nickel plating of an RGW line segment. It was found that the first method exhibits a great broadband absorbing performance and can be easily implemented in a lab environment, whereas the second method can realize a more accurate and predictable attenuating performance. Finally, nickel plating allows for designing resonant RGW terminations and is more interesting from the industrial perspective.

matched termination

carbonyl iron

ridge gap waveguide

carbon-loaded foam

nickel plating

Author

Artem Vilenskiy

Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks

Yingqi Zhang

Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks

Marianna Ivashina

Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks

2021 51st European Microwave Conference, EuMC 2021


978-2-87487-063-7 (ISBN)

2021 51st European Microwave Conference (EuMC)
London, United Kingdom,

Subject Categories

Applied Mechanics

Other Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.23919/EuMC50147.2022.9784367

ISBN

9782874870637

More information

Latest update

4/21/2023