scholarly journals Application of cylindrical IE-GSTC to physical metasurfaces

2021 ◽  
Author(s):  
Srikumar Sandeep ◽  
Albin Gasiewski ◽  
Andrew F Peterson
Keyword(s):  
Material Properties ◽  
Wave Scattering ◽  
Analytical Approach ◽  
Finite Thickness ◽  
Susceptibility Tensor ◽  
Full Wave ◽  
Dielectric Shell ◽  
Simulation Results ◽  
Plane Wave Scattering ◽  
Good Agreement

<div>This work validates cylindrical IE-GSTC by applying it to physical metasurfaces, i.e. metasurfaces defined by material properties and dimensions rather than by susceptibility tensor components. Previously reported IE-GSTC which was formulated for zero thickness GSTC discontinuity is extended to handle finite thickness of physical metasurfaces. A simple analytical approach is used to extract the bianisotropic susceptibility tensor of concentric, multilayered, magneto-dielectric shell. Plane wave scattering by a physical metasurface constructed of four segments of multilayered, magneto-dielectric metasurface scatterers is used as an example problem to validate cylindrical IEGSTC. A second example considers an opening on the cylindrical metasurface, confirming IE-GSTC can handle metasurfaces with openings. Good agreement is obtained between IE-GSTC results and full wave simulation results for both cases.</div>

scholarly journals Application of cylindrical IE-GSTC to physical metasurfaces

2021 ◽  
Author(s):  
Srikumar Sandeep ◽  
Albin Gasiewski ◽  
Shao Ying Huang ◽  
Andrew F Peterson
Keyword(s):  
Material Properties ◽  
Wave Scattering ◽  
Analytical Approach ◽  
Finite Thickness ◽  
Susceptibility Tensor ◽  
Full Wave ◽  
Dielectric Shell ◽  
Simulation Results ◽  
Plane Wave Scattering ◽  
Good Agreement

<div>This work validates cylindrical IE-GSTC by applying it to physical metasurfaces, i.e. metasurfaces defined by material properties and dimensions rather than by susceptibility tensor components. Previously reported IE-GSTC which was formulated for zero thickness GSTC discontinuity is extended to handle finite thickness of physical metasurfaces. A simple analytical approach is used to extract the bianisotropic susceptibility tensor of concentric, multilayered, magneto-dielectric shell. Plane wave scattering by a physical metasurface constructed of four segments of multilayered, magneto-dielectric metasurface scatterers is used as an example problem to validate cylindrical IEGSTC. A second example considers an opening on the cylindrical metasurface, confirming IE-GSTC can handle metasurfaces with openings. Good agreement is obtained between IE-GSTC results and full wave simulation results for both cases.</div>

scholarly journals Application of cylindrical IE-GSTC to physical metasurfaces

2021 ◽  
Author(s):  
Srikumar Sandeep ◽  
Albin Gasiewski
Keyword(s):  
Material Properties ◽  
Wave Scattering ◽  
Analytical Approach ◽  
Finite Thickness ◽  
Susceptibility Tensor ◽  
Full Wave ◽  
Dielectric Shell ◽  
Simulation Results ◽  
Plane Wave Scattering ◽  
Good Agreement

<div>This work validates cylindrical IE-GSTC by applying it to physical metasurfaces, i.e. metasurfaces defined by material properties and dimensions rather than by susceptibility tensor components. Previously reported IE-GSTC which was formulated for zero thickness GSTC discontinuity is extended to handle finite thickness of physical metasurfaces. A simple analytical approach is used to extract the bianisotropic susceptibility tensor of concentric, multilayered, magneto-dielectric shell. Plane wave scattering by a physical metasurface constructed of four segments of multilayered, magneto-dielectric metasurface scatterers is used as an example problem to validate cylindrical IEGSTC. A second example considers an opening on the cylindrical metasurface, confirming IE-GSTC can handle metasurfaces with openings. Good agreement is obtained between IE-GSTC results and full wave simulation results for both cases.</div>

scholarly journals Application of cylindrical IE-GSTC to physical metasurfaces

2021 ◽  
Author(s):  
Srikumar Sandeep ◽  
Albin Gasiewski ◽  
Shaoying Huang ◽  
Andrew F Peterson
Keyword(s):  
Material Properties ◽  
Wave Scattering ◽  
Analytical Approach ◽  
Finite Thickness ◽  
Susceptibility Tensor ◽  
Full Wave ◽  
Dielectric Shell ◽  
Simulation Results ◽  
Plane Wave Scattering ◽  
Good Agreement

<div>This work validates cylindrical IE-GSTC by applying it to physical metasurfaces, i.e. metasurfaces defined by material properties and dimensions rather than by susceptibility tensor components. Previously reported IE-GSTC which was formulated for zero thickness GSTC discontinuity is extended to handle finite thickness of physical metasurfaces. A simple analytical approach is used to extract the bianisotropic susceptibility tensor of concentric, multilayered, magneto-dielectric shell. Plane wave scattering by a physical metasurface constructed of four segments of multilayered, magneto-dielectric metasurface scatterers is used as an example problem to validate cylindrical IEGSTC. A second example considers an opening on the cylindrical metasurface, confirming IE-GSTC can handle metasurfaces with openings. Good agreement is obtained between IE-GSTC results and full wave simulation results for both cases.</div>

scholarly journals Application of cylindrical IE-GSTC to physical metasurfaces

2021 ◽  
Author(s):  
Srikumar Sandeep ◽  
Albin Gasiewski
Keyword(s):  
Material Properties ◽  
Wave Scattering ◽  
Analytical Approach ◽  
Finite Thickness ◽  
Susceptibility Tensor ◽  
Full Wave ◽  
Dielectric Shell ◽  
Simulation Results ◽  
Plane Wave Scattering ◽  
Good Agreement

<div>This work validates cylindrical IE-GSTC by applying it to physical metasurfaces, i.e. metasurfaces defined by material properties and dimensions rather than by susceptibility tensor components. Previously reported IE-GSTC which was formulated for zero thickness GSTC discontinuity is extended to handle finite thickness of physical metasurfaces. A simple analytical approach is used to extract the bianisotropic susceptibility tensor of concentric, multilayered, magneto-dielectric shell. Plane wave scattering by a physical metasurface constructed of four segments of multilayered, magneto-dielectric metasurface scatterers is used as an example problem to validate cylindrical IEGSTC. A second example considers an opening on the cylindrical metasurface, confirming IE-GSTC can handle metasurfaces with openings. Good agreement is obtained between IE-GSTC results and full wave simulation results for both cases.</div>

scholarly journals Application of the Cylindrical Wave Approach to the Simulation of Buried Utilities

2011 ◽  
Vol 2011 ◽  
pp. 1-8 ◽  
Author(s):  
Fabrizio Frezza ◽  
Lara Pajewski ◽  
Cristina Ponti ◽  
Giuseppe Schettini
Keyword(s):  
Wave Scattering ◽  
Finite Thickness ◽  
Scattering Problem ◽  
Cylindrical Wave ◽  
Wave Approach ◽  
Full Wave ◽  
The Earth ◽  
Wave Technique ◽  
Plane Wave Scattering ◽  
Air Cavities

The cylindrical wave approach is resumed. It is a full-wave technique for the solution of the two-dimensional plane-wave scattering problem by a set of perfectly conducting and dielectric cylinders buried in a dielectric half-space, or in a finite-thickness slab. This method can be applied for simulating scenarios with cylindrical inhomogeneities buried in the earth. New numerical results are presented, concerning the simulation of buried utilities. In particular, metallic pipes and air cavities are simulated.

Compact filtering power dividers with wide upper stopband

2019 ◽  
Vol 11 (08) ◽  
pp. 765-773
Author(s):  
Gaoya Dong ◽  
Weimin Wang ◽  
Yuanan Liu
Keyword(s):  
Transmission Lines ◽  
Wave Transmission ◽  
Coupling Matrix ◽  
Power Dividers ◽  
Full Wave ◽  
Half Wave ◽  
Coupled Lines ◽  
Quarter Wave ◽  
Simulation Results ◽  
Good Agreement

AbstractA series of compact filtering power dividers (FPDs) with simple layouts are proposed based on coupling topology. The structure of the presented FPD1 is composed of three resonators and one isolating resistor. These FPDs can be designed based on coupling matrix filter theory. A half-wave transmission line is employed in FPD2 to introduce a transmission zero (TZ) locating at 1.27f0. The FPD3 is designed by replacing quarter-wave transmission lines in FPD2 with quarter-wave coupled lines, which will produce a TZ locating at 1.96 f0 and extend upper stopband bandwidth. For verification, three FPDs centered at 2.45 GHz are fabricated and measured. All measured results are in good agreement with the full-wave simulation results.

Design of multi-layered bandpass filter with independently controllable triple-passband response

2014 ◽  
Vol 6 (6) ◽  
pp. 611-618 ◽  
Author(s):  
Yung-Wei Chen ◽  
Hung-Wei Wu ◽  
Yan-Kuin Su
Keyword(s):  
Frequency Response ◽  
Bandpass Filter ◽  
Bottom Layer ◽  
Wide Frequency Range ◽  
Electromagnetic Simulation ◽  
Frequency Range ◽  
High Isolation ◽  
Full Wave ◽  
Simulation Results ◽  
Good Agreement

In this paper, a new multi-layered triple-passband bandpass filter using embedded and stub-loaded stepped impedance resonators (SIRs) is proposed. The filter is designed to have triple-passband at 1.8, 2.4, and 3.5 GHz. The 1st and 2nd passbands (1.8/2.4 GHz) are simultaneously generated by controlling the impedance and length ratios of the embedded SIRs (on top layer). The 3rd passband (3.5 GHz) is generated by using the stub-loaded SIR (on bottom layer). Using the embedded SIR, the even modes can be tuned within very wide frequency range and without affecting the odd modes. Therefore, the design of multi-band filters with very close passbands can be easily achieved and having a high isolation between the passbands. The filter can provide the multi-path propagation to enhance the frequency response and achieving the compact circuit size. The measured results are in good agreement with the full-wave electromagnetic simulation results.

Reversible Stepwise Motion by a Novel Symmetric Scratch Drive Actuator

2002 ◽  
Author(s):  
Shawn Chen ◽  
Wensyang Hsu
Keyword(s):  
Experimental Data ◽  
Material Properties ◽  
Previous Literature ◽  
Geometrical Parameters ◽  
Driving Voltage ◽  
Analysis Scheme ◽  
Simulation Results ◽  
Good Agreement

A novel symmetric scratch drive actuator (SSDA) capable of two-way motion is proposed here. An analysis scheme is presented, and also can be applied to the conventional scratch drive actuator (SDA). The analysis derived here is the first to be able to relate the step increment and driving voltage with given geometrical parameters and material properties for SSDA or SDA. In order to verify the analysis, the simulation results are compared to experimental data of SDA in previous literature [1], and it shows good agreement. In the analysis of SSDA, it is found that SSDA can provide the same order of step increment with the same driving voltage, and it may move in two directions by one device.

scholarly journals A Miniaturized Dual-Mode Bandpass Filter Using Slot Spurline Technique

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Haiwen Liu ◽  
Jiuhuai Lei ◽  
Jing Wan ◽  
Yan Wang ◽  
Feng Yang ◽  
...  
Keyword(s):  
Elliptic Function ◽  
Bandpass Filter ◽  
Dual Mode ◽  
Wave Simulation ◽  
Full Wave ◽  
Filter Characteristic ◽  
Simulation Results ◽  
Degenerate Modes ◽  
Good Agreement

A miniaturized dual-mode bandpass filter (BPF) with elliptic function response using slot spurline is designed in this paper. The slot spurline can not only splits the degenerate modes but also determine the type of filter characteristic (Chebyshev or elliptic). To miniaturize the resonator, four sagittate stubs are proposed. For demonstration purpose, a BPF operating at 5.75 GHz for WLAN application was designed, fabricated, and measured. The measured results are in good agreement with the full-wave simulation results.

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