Slot Waveguide Comsol

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Mar 19, 2019 · Consequently, if PIM level of rectangular waveguide is predicted with fractal parameters, the predicted value will be unique. Based on this motivation, a new model is developed. In this model, the fractal method is used to characterize the surface topography of waveguide flanges.

3D Wave Propagation in Silicon Waveguide with Rib and Slot Configurations Application ID: 70551 A 3D silicon waveguide is set up with rib and slot configurations. The meshing includes physics-controlled mesh, with the number of longitudinal mesh elements set to 50 to visualize the wave oscillation. In a slot waveguide configuration, two high refractive index slabs (3.48) are placed adjacent to the low refractive index slot (1.44). Mode analysis was performed on a 2D cross section of a slot waveguide for an operating wavelength of 1.55 um.

This is the second of a series about using waveguide ports in Comsol. These notes supplement the examples shipped with your Comsol installation. Numeric waveguide ports are used when the transmission line does not have available analytic ports. Comsol has analytic ports for three cases: rectangular, circular, and coaxial. As an example
The lithographic technique used permits structures with heights of up to 100 μm to be successfully constructed in a repeatable manner. Waveguide S-parameter measurements at frequencies between 75-110 GHz using a vector network analyzer demonstrate low loss propagation in the TE10 mode reaching 0.2 dB per wavelength. and 3D optical fiber for frequency domain for mode analysis and boundary mode analysis using comsol 5.5. mode analysis of a waveguide - comsol.nl For users of the RF Module, COMSOL Multiphysics ® version 5.3a brings a new study step for running adaptive frequency sweeps, a Material Library for microwave and millimeter-wave circuit boards, an ...

Apr 01, 1990 · In examining approximate eigenfunction solutions of a rectangular dielectric waveguide that are separable in x and y, we have found that a particular choice of field components of E and H for satisfying the boundary conditions results in orthogonal eigenfunctions for the different modes, while other choices do not.

Slot Waveguide Comsol

Conventional rectangular waveguides are a widely accept-ed technology due to their higher quality (Q) factor (5,000– 10,000), low loss at microwave range, and high power-handling capability. However, their cumbersome structure requires mechanical assembling, which makes it difficult and expensive

Sample results showing a lossy metallic scatterer near a dielectric slab waveguide. The results of our model are shown in the image above, and the model file is available for download via the link below. Whenever you are modeling a scatterer near a dielectric waveguide you will want to use the combination of modeling techniques developed here. 4 7 In Comsol there is an example in the model library that is called coaxial waveguide coupling. Open this example and plot the S11 parameter (the reflection coefficient) in dB as a function of frequency in the interval 4.5 GHz–8.5 GHz.
The use of a combinded embedded modulated scattering technique, utilizing a PIN diode-loaded dipole probe, and near-Jield microwave nondestructive testing technique, utilizing an open-ended rectangular waveguide, hos been investigated as . a . means for determining’ the complex dielectric constant in which the MSTprobe is embedded. ATM manufactures Waveguide to Waveguide Adapters covering a full frequency range for Rectangular and Double Ridge Waveguides, with multiple flange configurations available. We offer a wide variety of waveguide transitions ranging from standard rectangular waveguide adapters in overlapping bands to custom waveguide adapters spanning multiple bands.

A chirality-based approach to making a one-way waveguide that can be used as an optical isolator or a polarizer is described. The waveguide is rectangular, and chirality is introduced by making slanted rectangular grooves on the waveguide walls. Chirality of the waveguide manifests as a strong circular dichroism and is responsible for transmitting one circular polarization of light and ...

3D Wave Propagation in Silicon Waveguide with Rib and Slot Configurations

Silicon Slot Waveguide

Application ID: 70551

A 3D silicon waveguide is set up with rib and slot configurations. The meshing includes physics-controlled mesh, with the number of longitudinal mesh elements set to 50 to visualize the wave oscillation.

The detailed discussion of the model setup is discussed in the blog post: 'Silicon Photonics: Designing and Prototyping Silicon Waveguides' in the section 'Designing and Prototyping Silicon Waveguides'.

Comsol Waveguide Simulation

This model example illustrates applications of this type that would nominally be built using the following products:

however, additional products may be required to completely define and model it. Furthermore, this example may also be defined and modeled using components from the following product combinations:

• COMSOL Multiphysics^®und

The combination of COMSOL^® products required to model your application depends on several factors and may include boundary conditions, material properties, physics interfaces, and part libraries. Particular functionality may be common to several products. To determine the right combination of products for your modeling needs, review the Spezifikationstabelle and make use of a free evaluation license. The COMSOL Sales and Support teams are available for answering any questions you may have regarding this.