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3D High-Frequency Electromagnetic Field Analysis Software Using Finite Element Method (High-Frequency Electromagnetic Field Simulator) with a Module for Frequency Response Analysis ■□■Features■□■ ■Since it is integrated with the PHOTO series pre- and post-processing tools, data creation, analysis, and result processing can be performed as a continuous operation. ■It is integrated with other PHOTO series modules, allowing for easy coupled analysis, such as calculating temperature distribution from heat generation obtained through electromagnetic field analysis. ■A revolutionary speed-up has been achieved by combining the edge element method and ICCG method. Therefore, 3D electromagnetic wave analysis (high-frequency analysis) is now possible on a personal computer. ■Using the finite element method makes it suitable for analyzing closed regions, especially those involving multiple media. ■When coupled with the thermal conduction analysis software PHOTO-THERMO, it is possible to calculate temperature distribution from heat generation within dielectrics.

We conducted an electromagnetic field analysis when operating a rectangular cavity in the TE101 mode using our "PHOTO-WAVEjω." We compared the numerical values obtained from the analysis results with theoretical calculations. We created plate elements on the surface of the analysis model, setting the electrical conductivity for these plate elements. We determined the Q value from the internal energy and losses on the inner walls. The values obtained using the analysis software matched well with the theoretical values. 【Case Summary】 ■ Analysis Target: Rectangular Cavity Resonator ■ Resonant Frequency: 2.20651 GHz ■ Software Used: PHOTO-WAVEjω ■ Evaluation Items: Electric Field (Absolute Value) and Magnetic Flux Density (Absolute Value) *For more details, please download the PDF or feel free to contact us.

We will introduce our achievements in verifying the reduction of reflected waves using our "PHOTO-WAVEjω." Assuming reflection, we create an impedance mismatch at the exit of the main waveguide, resulting in reflected waves. We adjust the length of the branched waveguide. By making these adjustments, we confirmed that the reflection coefficient can be appropriately suppressed. [Case Overview] ■ Analysis Purpose: Electromagnetic wave analysis of EH tuner ■ Frequency: 5GHz ■ Analysis Module: PHOTO-WAVEjω ■ Evaluation Item: Evaluation using the port's S11 (absolute value) *For more details, please download the PDF or feel free to contact us.

Electromagnetic field analysis was conducted to determine the resonance frequency and resonance modes of a cavity resonator. In this case, a rectangular cavity resonator was modeled, and eigenvalue analysis was performed to obtain the resonance frequency and resonance modes (patterns of electric and magnetic fields). 【Case Overview】 ■ Software Used: PHOTO-WAVEjω ■ Analysis Results ・In Mode 1, the error compared to the theoretical value was only 0.104%.

We conducted an analysis using the finite element method to determine the distribution of electromagnetic waves input from each port in a T-shaped waveguide used for signal processing in radar and other applications. Three ports were set up on an E-plane T-junction waveguide. Due to symmetry, a 1/2 model was created, with natural boundary conditions on the XY plane and symmetric boundary conditions on the other sides. As a result, the absolute values of S31 and S13 calculated were 0.644 and 0.631, respectively, with an error of 2.0%. [Case Summary] ■ Analysis Module: PHOTO-WAVEjω ■ Analysis Results - The absolute values of S31 and S13 calculated were 0.644 and 0.631, respectively, with an error of 2.0%. *For more details, please refer to the related links or feel free to contact us.

When a dielectric such as polyethylene is filled in a rectangular waveguide, reflections of electromagnetic waves occur at the air interface. Considering a system where polyethylene is filled in part of a rectangular waveguide of standard WRJ-5, the distribution of electromagnetic waves was analyzed using the finite element method. As a result, it was found that the absolute value of the electric field on the polyethylene side is constant, indicating that no reflection occurs at the output surface (the impedance boundary is correctly set). [Case Summary] ■ Analysis Module: PHOTO-WAVEjω ■ Analysis Results - It is evident that no reflection occurs at the output surface since the absolute value of the electric field on the polyethylene side is constant (the impedance boundary is correctly set). - In the calculation of the scattering matrix, the characteristic impedances of air and polyethylene were set as ZAir = 279.052Ω and ZPE = 156.987Ω. *For more details, please refer to the related links or feel free to contact us.

We will introduce a case study analyzing the input impedance of a dipole antenna using the electromagnetic wave analysis software "PHOTO-WAVEjω." The antenna has a diameter of 1mm, a length of 60.5mm, and a gap of 0.5mm. An impedance boundary was set at the model boundary. The antenna was treated as a perfect conductor. 【Case Overview】 ■ Software Used: PHOTO-WAVEjω ■ Analysis Conditions - An impedance boundary was set at the model boundary - The antenna was treated as a perfect conductor *For more details, please refer to the related links or feel free to contact us.

The Yagi-Uda antenna is a directional antenna composed of a waveguide made up of multiple short elements and a long element reflector, along with a feed located in between. The electromagnetic waves radiated from the feed are analyzed using the finite element method, and based on the results, far-field plane waves are estimated. The feed radiates electromagnetic waves polarized in the Z-axis direction, and the behavior of the electromagnetic waves in the air region surrounding the entire antenna is analyzed using the finite element method. Next, based on those results, the far-field electromagnetic waves are estimated using two different methods, and the results are compared. The shape is modeled as a full model. [Software Used] ■PHOTO-WAVEjω *For more details, please refer to the related links or feel free to contact us.

We present a case where the scattered wave in the far field, when a plane wave is incident on a scattering body and scattered, is estimated using the finite element method. A plane wave polarized in the X-axis direction is incident in the Z-axis direction, and the scattered wave after it hits the sphere is analyzed using the finite element method. Next, based on those results, we estimate the scattered wave in the far field using two different methods and compare the results. The shape is modeled in full. [Software Used] ■PHOTO-WAVEjω *For more details, please refer to the related links or feel free to contact us.

We will introduce a case study where metal posts were arranged to suppress the reflection of electromagnetic waves at 10GHz, and the frequency dependence of the reflection coefficient was analyzed. Impedance boundary conditions were set at the exit. The walls of the waveguide and the metal posts were treated as perfect conductors, and the input was provided as the TE10 electric field [V/m]. Additionally, an analysis was conducted for the case without metal posts for comparison. 【Case Overview】 ■ Software Used: PHOTO-WAVEjω ■ Analysis Conditions ・Waveguide: WRJ-10 (22.9mm × 10.2mm) ・The walls of the waveguide and the metal posts are perfect conductors ・The input was provided as the TE10 electric field [V/m] ・Impedance boundary conditions were set at the exit *For more details, please refer to the related links or feel free to contact us.

Photonic crystals are structures that can control light by periodically arranging multiple dielectrics and other materials. Electromagnetic wave analysis was conducted using the finite element method. The optical waveguide consists of periodically arranged dielectric rods, and light passes through areas where there are no dielectric rods. The radius of the rods, r, and the period of the rods, a, are set as r = 0.18a, and the electric field component parallel to the dielectric rods was input. 【Case Overview】 ■ Software Used: PHOTO-WAVEjω ■ Analysis Conditions - The radius of the rods, r, and the period of the rods, a, are set as r = 0.18a (Wavelength λ: 1.55μm, Refractive index n: 3.4) - Impedance boundary conditions are set on the sides - The electric field component parallel to the dielectric rods was input *For more details, please refer to the related links or feel free to contact us.

On this page, we introduce electromagnetic wave analysis animations of waveguides such as "Magic T," "E-plane T-junction waveguide," and "twisted waveguide." 【Overview】 ■ Magic T ■ E-plane T-junction waveguide ■ Twisted waveguide ■ Circular cavity ■ Rectangular iris-coupled waveguide filter *Detailed information about the cases can be viewed through the related links. For more information, please feel free to contact us.

The analysis of electromagnetic waves in a parallel plate using a slide interface was conducted for plane waves propagating in an air region sandwiched between metal plates (infinite parallel plates, perfect conductors) arranged above and below. This analysis was performed using a non-connected mesh (hereafter referred to as a non-connected mesh) with the slide interface applied. For more details, please download the catalog.

The electromagnetic wave analysis of the waveguide using the slide interface assumes that the boundaries of the analysis target are surrounded by perfect conductors, and calculates the electromagnetic field inside the waveguide formed by the electric field input from the lower convex part. For more details, please download the catalog.

It was necessary to set an electric field (3 components) at the nodes or to set a current density (3 components) at the elements as load conditions. For example, as shown in Figure 1, when setting an electric field in a coaxial cable, it was necessary to set each electric field component based on the coordinate values of each node, which was a cumbersome task for the user. By adding a function to automatically set load conditions, users can specify a set of nodes that are on the same plane, and by simply inputting a few parameters, the program calculates the electric field at each node and sets it as the load condition.

In versions prior to Ver8.0 of "PHOTO-WAVEjω," it was necessary to set the electric field (3 components) at nodes or the current density (3 components) at elements as load conditions. Since Ver8.2, a feature has been added to automatically set these load conditions. Users can specify a set of nodes that are on the same plane, and by simply inputting a few parameters, the program calculates the electric field at each node and sets it as the load condition. [Issues] ■ In versions prior to Ver8.0 of "PHOTO-WAVEjω," it was necessary to set the electric field at nodes or the current density at elements as load conditions. ■ When setting the electric field in a rectangular waveguide, it was necessary to set each electric field component from the coordinates of each node, which was a cumbersome task for users. *For more details, please refer to the related links or feel free to contact us.

The number of nodes in the microwave analysis is 2494, and the number of elements is 1956. The analysis conditions are as follows: relative permittivity: real part: air 1, dielectric 40; imaginary part: air 0, dielectric -5; relative permeability: real part: air 1, dielectric 1; imaginary part: air 0, dielectric 0. For more details, please download the catalog.

The porous directional coupler is a coupler with numerous coupling holes created in two waveguides (WRJ-10) that share the E-plane, demonstrating good directionality over a wide bandwidth. We analyzed the electromagnetic waves within the waveguide when 10 GHz microwaves (TE10) were incident at the ports of the waveguide. The diameter of the holes is larger closer to the center, and the center positions of the holes are arranged at intervals of one-quarter of the wavelength within the tube. For more details, please download the catalog.

The "PHOTO series" offers analysis solvers that utilize the most suitable simulation methods for a wide range of target fields, from high-frequency electromagnetic waves to low-frequency electric and magnetic fields, based on the analysis theme. Unlike other commercial software packages that handle all phenomena with a single analysis solver, we use the most appropriate analysis solver for the purpose, ensuring high analysis accuracy and detailed responsiveness to needs. Additionally, you can select only the necessary modules suited to the problem, which helps keep the implementation costs economical. It is also easy to expand functionality by adding modules, and by combining them, it is possible to handle coupled analyses such as heat generation due to eddy currents and stresses or deformations caused by electromagnetic forces. All products are compatible with three-dimensional problems, and the transient response analysis module can handle nonlinear materials.