Design of a FSS Waveguide Filter at 8.05 GHz

Cai, Shu-Feng; Wang, Hongtao; Wang, Zhe-Yu; Zhai, Yanfen

doi:10.1109/imws.2008.4782292

Cited by 6 publications

(4 citation statements)

References 1 publication

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“…The formulas (4) and (5) give the relations between the values of lumped elements and the geometry of the physical FSS metallic patterns [19]. 6 and the dimensions of the optimized FSS unit cells.…”

Section: Capacitive and Inductive Fss Designmentioning

confidence: 99%

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A Compact Diplexer Based on Low Profile Multilayer FSS Filters for Ultra-High Data Rate Point to Point Wireless Communication System

Zhang¹,

Hafdallah-Ouslimani²

2014

PIER B

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Abstract-In this paper, we propose the design of multilayer frequency selective surfaces (FSS) waveguide band-pass filters (WBPF). The WBPFs are designed to operate at two different frequency channels, respectively 71-76 GHz (Rx) and 81-86 GHz (Tx). The cross section surface of the FSS is imposed by the WR12 waveguide rectangular section's dimensions. The WBPFs are inserted symmetrically in a T-junction waveguide to design a compact diplexer. This is a basic component developed for an efficient integration in the future E-band millimeter-wave transceiver. The multilayer FSS structure uses only non-resonant sub-wavelength unit cell elements; metallic patch and slot. To reach high channel isolation (≈ 70 dB) a seven order filter was required. Hence, each filter is composed of 13 capacitive and inductive metallic FSS spaced by 12 ultra-thin dielectric substrate layers. The dielectric material is Rogers Ultralam 3850 (Liquid Crystalline Polymer; LCP circuit material). The filter's overall thickness is < λ/4. The numerical studies have been performed using finite element method simulator (HFSS) and CST Studio Suites Tools. The experimental validation has been also done in the X band frequency by developing a fifth order FSS WBPF. Good agreements between simulated and measured results are obtained.

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Section: Capacitive and Inductive Fss Designmentioning

confidence: 99%

“…Such structures have the disadvantage of being too thick (bulky), heavy, expensive, and difficult to integrate systems in millimeter band [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

A Compact Diplexer Based on Low Profile Multilayer FSS Filters for Ultra-High Data Rate Point to Point Wireless Communication System

Zhang¹,

Hafdallah-Ouslimani²

2014

PIER B

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“…The combined use of FSS with waveguides is not a novel idea. In fact, it is a well-known technique to realize waveguide filter components [15][16][17][18]. In that case, the free-space response of FSS is not considered because the FSS and the waveguide are both considered as a single global structure during the filter synthesis procedure.…”

Section: Introductionmentioning

confidence: 99%

Characterization of frequency-selective surface spatial filters in a rectangular waveguide

Debarros

Lemaître-Auger²,

Menezes³

et al. 2012

Int. j. microw. wirel. technol.

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International audienceThe possibility to characterize infinite and periodic frequency-selective surfaces (FSS) filters that have two orthogonal axes of symmetry inside a waveguide is reported. Thus, preliminary measurements can rapidly be obtained at low cost with few elementary cells instead of using a large FSS panel in free space. This is possible because of the equivalence that exists between the electromagnetic fields of two symmetric and oblique plane waves incident on and reflected from an infinite periodic surface and the incident/reflected fields that exist inside a single-mode rectangular waveguide containing a finite number of elementary cells. Comparisons of the measurements with some full-wave simulations for FSS belonging to the first three groups as they were defined by Munk confirm the good agreement between them. This is an interesting and simple assessment tool concerning the fabrication quality of FSS. The extension of this technique to non-symmetric FSS patterns is also discussed and supported by experimental and simulation results. The limitations of the technique are finally discussed

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“…В [14] с помощью метода интегральных уравнений были построены численные модели in-line фильтров на базе волновода WR42 (a = 10,67 мм, b = 4,32 мм) с различным расположением вставок, в том числе, вдоль одной боковой стенки. При этом в диапазоне 23...25 ГГц была получена чебышевская Компактный полосовой фильтр на WR112 (a = 28,5 мм, b = 12,62 мм) с набором металлических диафрагм двух типов: с одним и двумя отверстиями прямоугольной формы и центральной частотой 8,05 ГГц был построен и экспериментально исследован в[18]. В ряде случаев, форма отверстия диафрагм может быть выполнена, например, в виде ступенчатой щели, как это было сделано в[19] для создания полосового фильтра U-диапазона (40...60 ГГц).…”

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Waveguide microwave filters technical solutions, development trends and calculation methods.

Комаров¹,

Lukyanov²

2021

JRE

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Various frequency selective devices manufactured by different technologies are used in modern microwave systems to filtering electromagnetic signals. Planar structures on dielectric substrates find a wide spread in low- and average-level (less than 100 W) power systems. Microwave filters on cavities and waveguides are utilized in high-power systems for these purposes. Waveguide filters are the separate class of perspective functional devices dynamically developing in the present time. Diversity of designs of such filters, techniques of their manufacturing and methods of calculation is quite high. In conjunction with this a review of waveguide microwave filters of different frequency ranges is carried out in the present work. Their classification is proposed. It is shown that waveguide filters are well adapted for operating at different frequencies both in microwave and terahertz ranges. Structures of filters, some methods of their manufacturing and mathematical modeling are analyzed.

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Design of a FSS Waveguide Filter at 8.05 GHz

Cited by 6 publications

References 1 publication

A Compact Diplexer Based on Low Profile Multilayer FSS Filters for Ultra-High Data Rate Point to Point Wireless Communication System

A Compact Diplexer Based on Low Profile Multilayer FSS Filters for Ultra-High Data Rate Point to Point Wireless Communication System

Characterization of frequency-selective surface spatial filters in a rectangular waveguide

Waveguide microwave filters technical solutions, development trends and calculation methods.

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