A Novel 2.5-Dimensional Ultraminiaturized-Element Frequency Selective Surface

This paper proposes fabricating a new 2.5-dimensional ultraminiaturized element on a cost-effective printed circuit board to build a frequency selective surface (FSS). The proposed element consists of two main parts: a planar tapered meandering line (PTML) and a vertical via-based meandering line (V...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2014-07, Vol.62 (7), p.3657-3663
Main Authors: YU, Yi-Min, CHIU, Cheng-Nan, WU, Tzong-Lin, CHIOU, Yih-Ping
Format: Article
Language:English
Subjects:
Angle of incidence
Angle stability
Applied sciences
Boards
Capacitance
Circuit boards
Circuit stability
Computer simulation
Couplings
Design engineering
Deviation
Diffraction, scattering, reflection
Equivalent circuits
Exact sciences and technology
Frequency selective surfaces
Integrated circuit modeling
Mathematical models
miniaturized-element frequency selective surfaces (FSSs)
polarization stability
printed circuit board
Printed circuit boards
Radiocommunications
Radiowave propagation
Resonant frequencies
Resonant frequency
spatial filter
Telecommunications
Telecommunications and information theory
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Summary:This paper proposes fabricating a new 2.5-dimensional ultraminiaturized element on a cost-effective printed circuit board to build a frequency selective surface (FSS). The proposed element consists of two main parts: a planar tapered meandering line (PTML) and a vertical via-based meandering line (VVML). Compared with previous published two-dimensional miniaturized elements, the proposed element is smaller (only 3.3% of the free space wavelength at the resonant frequency) and exhibits high resonant stability at various polarizations and incidence angles (only 0.4% deviation at the resonant frequency when the incident angle is as great as 75°). In particular, the introduction of VVML in the element substantially improves the FSS performance. A third-order equivalent circuit model was established to model the FSS performance precisely. This model can be reduced to a simpler first-order model, thus enabling the resonant frequency of the FSS to be predicted quickly. A prototype of the ultraminiaturized-element FSS was created and examined. The results of the proposed models, full-wave simulation, and measurement exhibited satisfactory consistency.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2014.2321153