Waveguide Structures with Improved Cut-off Frequency and Bandwidth
Ramakrushna Panigrahi1, Siba Prasad Mishra2, P.V.Y. Jayasree3
1Ramakrushna Panigrahi, Department of Electrical Electronics and Communication Engineering, GIT, GITAM University, Visakhapatnam (Andhra Pradesh), India.
2Siba Prasad Mishra, Department of Electrical Electronics and Communication Engineering, GIT, GITAM University, Visakhapatnam (Andhra Pradesh), India.
3P.V.Y Jayasree, Department of Electrical Electronics and Communication Engineering, GIT, GITAM University, Visakhapatnam (Andhra Pradesh), India.
Manuscript received on 22 November 2019 | Revised Manuscript received on 10 December 2019 | Manuscript Published on 30 December 2019 | PP: 82-85 | Volume-9 Issue-2S3 December 2019 | Retrieval Number: B10201292S319/2019©BEIESP | DOI: 10.35940/ijitee.B1020.1292S319
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open-access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: The wave transmission characteristics of rectangular, double-ridge, trapezoidal-ridge and anti-trapezoidal ridge waveguides are analyzed using the finite-element method. The cut-off wavelength and attenuation of these waveguides are calculated. The result shows that anti-trapezoidal ridge waveguides perform better than rectangular, double-ridge and trapezoidal-ridge waveguides. The variation of bandwidth and attenuation with respect to change in the angle of physical ridge structures has been studied while migrating from rectangular to anti-trapezoidal ridge structures.
Keywords: Waveguides; Cut-off Frequency; Attenuation; Rectangular, Double-ridged; Trapezoidal; Anti-Trapezoidal.
Scope of the Article: Frequency Selective Surface