Next Article in Journal
A Scalable and Hybrid Intrusion Detection System Based on the Convolutional-LSTM Network
Next Article in Special Issue
Bloch Analysis of Electromagnetic Waves in Twist-Symmetric Lines
Previous Article in Journal / Special Issue
Fully Metallic Flat Lens Based on Locally Twist-Symmetric Array of Complementary Split-Ring Resonators
Article Menu
Issue 4 (April) cover image

Export Article

Open AccessFeature PaperArticle

Analysis of Periodic Structures Made of Pins Inside a Parallel Plate Waveguide

1
Department of Signal Theory and Communications, University Carlos III of Madrid, 28911 Leganés, Spain
2
Escuela de Ingeniería Eléctrica, Pontificia Universidad Católica de Valparaíso, Valparaíso 2362804, Chile
*
Author to whom correspondence should be addressed.
Symmetry 2019, 11(4), 582; https://doi.org/10.3390/sym11040582
Received: 15 March 2019 / Revised: 15 April 2019 / Accepted: 17 April 2019 / Published: 22 April 2019
  |  
PDF [2306 KB, uploaded 22 April 2019]
  |  

Abstract

In this work, we have analyzed different versions of periodic structures made with metallic pins located inside a parallel plate waveguide (PPWG), varying the symmetry and disposition of the pins. The analysis focuses on two main parameters related to wave propagation. On one hand, we have studied how the different proposed structures can create a stopband so that the parallel plate modes can be used in gap waveguide technology or filtering structures. On the other hand, we have analyzed the dispersion and equivalent refractive index of the first propagating transverse electromagnetic mode (TEM). The results show how the use of complex structures made with pins in the top and bottom plates of a PPWG have no advantages in terms of the achieved stopband size. However, for the case of the propagating mode, it is possible to find less dispersive modes and a higher range of equivalent refractive indices when using double-pin structures compared to a reference case with single pins. View Full-Text
Keywords: bed of nails; glide symmetry; gap waveguide technology; dispersion; stopband bed of nails; glide symmetry; gap waveguide technology; dispersion; stopband
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Memeletzoglou, N.; Sanchez-Cabello, C.; Pizarro-Torres, F.; Rajo-Iglesias, E. Analysis of Periodic Structures Made of Pins Inside a Parallel Plate Waveguide. Symmetry 2019, 11, 582.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Symmetry EISSN 2073-8994 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top