Software Tool for the Leaky-Mode Analysis of Waveguides Loaded with Frequency Selective Surfaces

Conference: EuCAP 2009 - 3rd European Conference on Antennas and Propagation
03/23/2009 - 03/27/2009 at Berlin, Germany

Proceedings: EuCAP 2009

Pages: 5Language: englishTyp: PDF

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García Vigueras, María; Gómez Tornero, José Luis; Álvarez Melcón, Alejandro (Information Technology and Communications Department, Technical University of Cartagena, Cartagena 30202, Spain)
Goussetis, George (School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK)

We present an analysis procedure to obtain the modal dispersion curves of complex structures based on the introduction of metallodielectric frequency-selective surfaces (FSS) inside rectangular waveguides excited with TE0 modes. This type of structures can be used to conceive novel Electromagnetic-Band Gap (EBG) waveguides and low-profile high-gain leaky-wave antennas (LWAs). The analysis technique is divided in several steps, which have been implemented in a software tool using MATLAB(R), and which are explained in detail in this work. The advantages and limitations of the proposed method are also described. Comparisons with full-wave simulations are presented to validate this analysis tool.