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Guides | Models | Validation
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Guides
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- Evaluating EMF Compliance - Part 1: A Guide to Far-Field RF Exposure Assessments
- Design Guidelines for Skeleton Slot Antennas: A Simulation-Driven Approach
- Simplified Modeling for Microstrip Antennas on Ungrounded Dielectric Substrates: Accuracy Meets Simplicity
- Fast Modeling of a Monopole Supported by a Broadcast Tower
- Linking Log-Periodic Antenna Elements Using Transmission Lines
- Wave Matching Coefficient: Defining the Practical Near-Far Field Boundary
- AN-SOF Mastery: Adding Elevated Radials Quickly
- How to Merge Projects
- On the Modeling of Radio Masts
- The Equivalent Circuit of a Balun
- AN-SOF Antenna Simulation Best Practices: Checking and Correcting Model Errors
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- AN-SOF Antenna Simulation Software - Version 8.90 Release Notes
- AN-SOF 8.70: Enhancing Your Antenna Design Journey
- Introducing AN-SOF 8.50: Enhanced Antenna Design & Simulation Software
- Get Ready for the Next Level of Antenna Design: AN-SOF 8.50 is Coming Soon!
- Explore the Cutting-Edge World of AN-SOF Antenna Simulation Software!
- Upgrade to AN-SOF 8.20 - Unleash Your Potential
- AN-SOF 8: Elevating Antenna Simulation to the Next Level
- New Release: AN-SOF 7.90
- AN-SOF 7.80 is ready!
- New AN-SOF User Guide
- New Release: AN-SOF 7.50
- AN-SOF 7.20 is ready!
- New Release :: AN-SOF 7.10 ::
- AN-SOF 7.0 is Here!
- New Release :: AN-SOF 6.40 ::
- New Release :: AN-SOF 6.20 ::
- Show All Articles ( 1 ) Collapse Articles
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Models
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- Modeling a J-Fed 5-Element Collinear Antenna for the 2 m Band
- Simulating the Ingenious Multiband Omnidirectional Dipole Antenna Design
- The Loop on Ground (LoG): A Compact Receiving Antenna with Directional Capabilities
- Precision Simulations with AN-SOF for Magnetic Loop Antennas
- Advantages of AN-SOF for Simulating 433 MHz Spring Helical Antennas for ISM & LoRa Applications
- Radio Mast Above Wire Screen
- Square Loop Antenna
- Receiving Loop Antenna
- Monopole Above Earth Ground
- Top-Loaded Short Monopole
- Half-Wave Dipole
- Folded Dipole
- Dipole Antenna
- The 5-in-1 J-Pole Antenna Solution for Multiband Communications
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- Extended Double Zepp (EDZ): A Phased Array Solution for Directional Antenna Applications
- Transmission Line Feeding for Antennas: The Four-Square Array
- Log-Periodic Christmas Tree
- Enhancing VHF Performance: The Dual Reflector Moxon Antenna for 145 MHz
- Biquad UHF Antenna Array
- 145 MHz 5-Element Array of Square Loops
- Broadside Dipole Array
- Log-Periodic Dipole Array
- Broadband Directional Antenna
- A Closer Look at the HF Skeleton Slot Antenna
- The 17m Band 2-Element Delta Loop Beam: A Compact, High-Gain Antenna for DX Enthusiasts
- Enhancing Satellite Links: The Moxon-Yagi Dual Band VHF/UHF Antenna
- Array of Snowflake Quads
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Validation
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- Simple Dual Band Vertical Dipole for the 2m and 70cm Bands
- Linear Antenna Theory: Historical Approximations and Numerical Validation
- Validating Panel RBS Antenna with Dipole Radiators against IEC 62232
- Directivity of V Antennas
- Enhanced Methodology for Monopoles Above Radial Wire Ground Screens
- Dipole Gain and Radiation Resistance
- Convergence of the Dipole Input Impedance
- Impedance of Cylindrical Antennas
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Plotting Near Field Patterns
Go to Results > Plot Near E-Field Pattern > 3D Plot in the main menu to plot the near electric field as a 3D graph with a color scale. This command executes the AN-3D Pattern application, Fig. 1. Go to Results > Plot Near H-Field Pattern > 3D Plot in the main menu to plot the near magnetic field.
Near-field 3D plots will be shown according to the type of coordinate system that was chosen in the Near-Field panel of the Setup tabsheet: Cartesian, Cylindrical or Spherical. If near-fields were calculated for more than one frequency, a dialog box asking for a fixed frequency will be shown before plotting the near-field pattern.
The near electric field can also be plotted as a 2D rectangular plot by going to Results > Plot Near E-Field Pattern > 2D Plot in the main menu. The near magnetic field can be plotted by going to Results > Plot Near H-Field Pattern > 2D Plot. These commands execute the AN-XY Chart > application, where the total rms electric or magnetic field is plotted in a 2D chart, Fig. 2. A near-field has always three components, which can be plotted individually by going to the Plot menu in the AN-XY Chart.
The near-field patterns for a given frequency can also be tabulated going to Results > List Near E-Field Pattern or Results > List Near H-Field Pattern in the AN-SOF main menu.
Regarding the Near-Field Components
- If Cartesian coordinates have been set in the Near-Field panel of the Setup tabsheet, the Ex, Ey and Ez electric field components and the Hx, Hy and Hz magnetic field components will be calculated in a rectangular grid of points in space with coordinates (x,y,z).
- If Cylindrical coordinates have been set in the Near-Field panel of the Setup tabsheet, the Er, Ephi and Ez electric field components and the Hr, Hphi and Hz magnetic field components will be calculated in a cylindrical grid of points in space with coordinates (r,phi,z).
- If Spherical coordinates have been set in the Near-Field panel of the Setup tabsheet, the Er, Etheta and Ephi electric field components and the Hr, Htheta and Hphi magnetic field components will be calculated in a spherical grid of points in space with coordinates (r,theta,phi).