Abstract
An extension of the pole-zero matching method proposed by Stefano Maci for the analysis of electromagnetic bandgap (EBG) structures composed by lossless dipole-based frequency selective surfaces (FSS) printed on stratified dielectric media, is presented in this paper. With this novel expansion, the dipoles length appears as a variable in the analytical dispersion equation. Thus, modal dispersion curves as a function of the dipoles length can be easily obtained with the only restriction of single Floquet mode propagation. These geometry-dispersion curves are essential for the efficient analysis and design of practical EBG structures, such as waveguides loaded with artificial magnetic conductors (AMC) for miniaturization, or leaky-wave antennas (LWA) using partially reflective surfaces (PRS). These two practical examples are examined in this paper. Results are compared with full-wave 2D and 3D simulations showing excellent agreement, thus validating the proposed technique and illustrating its utility for practical designs.
Original language | English (US) |
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Article number | 5439876 |
Pages (from-to) | 1971-1979 |
Number of pages | 9 |
Journal | IEEE Transactions on Antennas and Propagation |
Volume | 58 |
Issue number | 6 |
DOIs | |
State | Published - Jun 1 2010 |
Externally published | Yes |
Keywords
- Artificial magnetic conductors (AMC)
- Electromagnetic bandgap structures (EBG)
- Frequency selective surfaces (FSS)
- Leaky-wave antennas (LWA)
- Partially reflective surfaces (PRS)
- Periodic surfaces
- Transmission line networks
ASJC Scopus subject areas
- Electrical and Electronic Engineering