Design of a Dual-Band Orthogonally Polarized L-Probe-Fed Fractal Patch Antenna Using Modal Methods

Modal methods are used to effectively design a dual-band orthogonally polarized fractal patch antenna. This letter summarizes the workflow from generating a fractal motif through modal analysis to feeding design and full-wave analysis. As the antenna's feeding and matching structure, a dual L-p...

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Bibliographic Details
Published in:IEEE antennas and wireless propagation letters 2011, Vol.10, p.1389-1392
Main Authors: Eichler, J., Hazdra, P., Capek, M., Korinek, T., Hamouz, P.
Format: Article
Language:English
Subjects:
Antenna measurements
Antenna radiation patterns
Bandwidth
dual-band
fractal antena
Fractals
Iterated Function System (IFS)
L-probe
modal analysis
Resonant frequency
theory of characteristic modes (TCM)
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Summary:Modal methods are used to effectively design a dual-band orthogonally polarized fractal patch antenna. This letter summarizes the workflow from generating a fractal motif through modal analysis to feeding design and full-wave analysis. As the antenna's feeding and matching structure, a dual L-probe was proposed to widen its bandwidth. The full-wave simulation is in very good agreement with the measurement. The motif size is 50 × 50 mm 2 , and the antenna operates at 1.25 and 2.1 GHz. The relative bandwidths are 4.18% and 11.4%, respectively.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2011.2178811