PRODUCTS
SOFTWARE DESCRIPTION
AN-SOF(R) is a program system for the modeling of 3D arbitrarily shaped wire structures and the computation of their electromagnetic behavior, including passive circuits, transmission lines, waveguides, transmitting and receiving antennas, as well as general radiation and scattering problems.
The computer code is based on an Electric Field Integral Equation (EFIE) expressed in the frequency domain. The current distribution on metallic structures is computed by solving the EFIE using a full-wave Method of Moments (MoM) formulation with conformal or curved geometry decomposition (CMoM). This means that geometry details are modeled by using conformal segments, which exactly follow the contour of the structure, instead of the typical approximation with straight wire segments.
With this innovative technique, the number of unknown currents, simulation time and memory space can be reduced, allowing for the solution of bigger problems. Besides, advanced calculation techniques are implemented in the full-wave MoM, making possible simulations from extremely low frequencies (e.g. electric circuits) to very high ones (e.g. Wi-Fi antennas).
The 3D geometry is easily drawn on the screen by means of a especially designed CAD interface with mouse support.
The computer code is based on an Electric Field Integral Equation (EFIE) expressed in the frequency domain. The current distribution on metallic structures is computed by solving the EFIE using a full-wave Method of Moments (MoM) formulation with conformal or curved geometry decomposition (CMoM). This means that geometry details are modeled by using conformal segments, which exactly follow the contour of the structure, instead of the typical approximation with straight wire segments.
With this innovative technique, the number of unknown currents, simulation time and memory space can be reduced, allowing for the solution of bigger problems. Besides, advanced calculation techniques are implemented in the full-wave MoM, making possible simulations from extremely low frequencies (e.g. electric circuits) to very high ones (e.g. Wi-Fi antennas).
The 3D geometry is easily drawn on the screen by means of a especially designed CAD interface with mouse support.
GENERAL DESCRIPTION
KEY FEATURES
MODELING OF METALLIC STRUCTURES
EXCITATION METHODS
FREQUENCY OPTIONS
DATA INPUT
DATA OUTPUT
AN-SOF(R) has integrated graphical tools for the convenient visualization of the simulation results:
AN-XY Chart: This is a chart for plotting two related quantities, that is Y versus X. This tool permits plotting frequency-dependent quantities, such as current, voltage, impedance, reflection coefficient, VSWR, radiated power, consumed power, directivity, gain, radiation efficiency, radar cross section, etc. The current distribution on metallic structures can also be plotted as a function of position with this program. Besides, 2D radiation patterns can be represented for a near- or far-field as a function of a chosen angle or distance. Zoom with mouse support and several unit systems for the plotted results are available.
AN-Smith: The famous Smith chart for the representation of impedances and admittances is implemented in this tool. An impedance/admittance curve in the Smith chart is obtained when frequency is varied. The frequency corresponding to each data point in the chart can easily be obtained by clicking with the mouse on the screen. Reflection coefficients and VSWR (Voltage Standing Wave Ratio) are also showed. Plots can be stored in independent files and opened later for a graphical analysis with AN-Smith.
AN-Polar: Radiation and scattering patterns versus azimuth or zenith angles can be represented in this polar diagram, from which the width of radiation lobes and front-to-back ratios can be obtained. The represented field quantities include power density, directivity, gain, normalized radiation pattern, total electric field, field polarized components, and RCS.
AN-3D Pattern: A complete view of the radiation and scattering properties of a structure can only be achieved with a full-angle resolved pattern. This task can be accomplished with AN-3D Pattern, which implements colored mesh and surface for the clear visualization of radiation lobes, including a color bar-scale indicating the field intensities over the lobes. Zoom, translation and rotation of the 3D pattern can be performed. The represented quantities include the power density, normalized radiation pattern, directivity, gain, total field, linearly polarized field components, circularly polarized field components, and RCS. Linear and decibel scales are available.
AN-XY Chart: This is a chart for plotting two related quantities, that is Y versus X. This tool permits plotting frequency-dependent quantities, such as current, voltage, impedance, reflection coefficient, VSWR, radiated power, consumed power, directivity, gain, radiation efficiency, radar cross section, etc. The current distribution on metallic structures can also be plotted as a function of position with this program. Besides, 2D radiation patterns can be represented for a near- or far-field as a function of a chosen angle or distance. Zoom with mouse support and several unit systems for the plotted results are available.
AN-Smith: The famous Smith chart for the representation of impedances and admittances is implemented in this tool. An impedance/admittance curve in the Smith chart is obtained when frequency is varied. The frequency corresponding to each data point in the chart can easily be obtained by clicking with the mouse on the screen. Reflection coefficients and VSWR (Voltage Standing Wave Ratio) are also showed. Plots can be stored in independent files and opened later for a graphical analysis with AN-Smith.
AN-Polar: Radiation and scattering patterns versus azimuth or zenith angles can be represented in this polar diagram, from which the width of radiation lobes and front-to-back ratios can be obtained. The represented field quantities include power density, directivity, gain, normalized radiation pattern, total electric field, field polarized components, and RCS.
AN-3D Pattern: A complete view of the radiation and scattering properties of a structure can only be achieved with a full-angle resolved pattern. This task can be accomplished with AN-3D Pattern, which implements colored mesh and surface for the clear visualization of radiation lobes, including a color bar-scale indicating the field intensities over the lobes. Zoom, translation and rotation of the 3D pattern can be performed. The represented quantities include the power density, normalized radiation pattern, directivity, gain, total field, linearly polarized field components, circularly polarized field components, and RCS. Linear and decibel scales are available.