Reflection Phase and Frequency Bandgap Characteristics of EBG Structures with Anisotropic Periodicity
- 1 January 2005
- journal article
- Published by Taylor & Francis in Journal of Electromagnetic Waves and Applications
- Vol. 19 (14) , 1897-1905
- https://doi.org/10.1163/156939305775570576
Abstract
An anisotropic mushroom-like electromagnetic bandgap (EBG) structure is studied. Different to the conventional EBG structures with square unit cell, the presented EBG structures are with anisotropic periodicity. The periodic spacing or the metal patch length is different along the two periodic directions. So the reflection phase and the frequency bandgap will show distinct characteristics compared to the conventional EBG structures. These two features of the anisotropic EBG structures have been calculated numerically using FDTD method. The results show that the frequency of in-phase reflection is dependent on the polarization of incident plane wave, and the frequency bandgap along the two orthogonal directions could be designed to be similar or even overlapped.Keywords
This publication has 4 references indexed in Scilit:
- Polarization‐dependent electromagnetic band gap (PDEBG) structures: Designs and applicationsMicrowave and Optical Technology Letters, 2004
- Metallo-dielectric electromagnetic bandgap structures for suppression and isolation of the parallel-plate noise in high-speed circuitsIEEE Transactions on Microwave Theory and Techniques, 2003
- A novel TEM waveguide using uniplanar compact photonic-bandgap (UC-PBG) structureIEEE Transactions on Microwave Theory and Techniques, 1999
- High-impedance electromagnetic surfaces with a forbidden frequency bandIEEE Transactions on Microwave Theory and Techniques, 1999