Higher Order Modes Propagation in Rectangular Waveguides Made from Anisotropic Material

Rudd, M, Baum, T and Ghorbani, K 2018, 'Higher Order Modes Propagation in Rectangular Waveguides Made from Anisotropic Material', in Proceedings of the 7th IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP 2018), Auckland, New Zealand, 5-8 August 2018, pp. 80-82.


Document type: Conference Paper
Collection: Conference Papers

Title Higher Order Modes Propagation in Rectangular Waveguides Made from Anisotropic Material
Author(s) Rudd, M
Baum, T
Ghorbani, K
Year 2018
Conference name APCAP 2018
Conference location Auckland, New Zealand
Conference dates 5-8 August 2018
Proceedings title Proceedings of the 7th IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP 2018)
Publisher IEEE
Place of publication United States
Start page 80
End page 82
Total pages 3
Abstract Using Carbon Fiber Reinforced Polymer (CFRP) materials for high frequency structures introduces high amount of loss due to the limited anisotropic conductivity. This loss is critical for structures like waveguides which are normally used for high power transmissions. In this paper we analyze the loss mechanism in a rectangular waveguide made from anisotropic material. We show that mode conversion is the dominant loss mechanism factor in a waveguide made from anisotropic material and can be avoided by using the waveguide for higher order modes. Insertion loss of a WR-90 waveguide with anisotropic walls has been simulated for different propagation modes and it has been shown that the insertion loss is more than 26 dB lower when the waveguide is used for TM 22 mode rather than TE 10 .
Subjects Microwave and Millimetrewave Theory and Technology
Keyword(s) anisotropic
CFRP
higher order modes
mode conversion
waveguide
DOI - identifier 10.1109/APCAP.2018.8538039
Copyright notice © 2018 IEEE
ISBN 9781538656495
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