Category - Models

In the directory where AN-SOF was installed there is a folder called “Examples” which contains many examples of antennas and wire structures. The default directory is C:\AN-SOF X\Examples where X is the AN-SOF version. You can also download the examples from here >. We constantly upload files with examples on our website. You will find […]

Discover 5 antenna models with less than 50 segments in AN-SOF Trial Version. These examples showcase the capabilities of our software for antenna modeling and design, allowing you to evaluate its features for your projects.

Learn how to simulate a center-fed cylindrical antenna using AN-SOF software. This step-by-step guide covers setup, geometry creation, simulation, and result analysis. Understand dipole characteristics through practical examples.

This step-by-step guide empowers you to simulate circular loop antennas in AN-SOF. We'll configure the software, define loop geometry, and explore how its size relative to wavelength affects radiation patterns and input resistance. Gain valuable insights into this fundamental antenna type!

Explore the design and simulation of monopole antennas over imperfect ground using AN-SOF. Learn how ground conditions impact performance and optimize efficiency for LF/MF broadcasting applications.

Perfect for Beginners: Quick Guide to Helix Antenna Simulation. Master axial-mode helix design in AN-SOF with this easy step-by-step tutorial. Learn ground plane setup, helix creation, and radiation pattern analysis. Start modeling professional antennas today!

Master Yagi-Uda simulation in AN-SOF! This quick guide walks you through modeling a 3-element array (reflector, driven element, director). Analyze radiation patterns with professional results.

The Inverted V antenna is a cornerstone of HF communication, providing a space efficient and single mast supported alternative to the horizontal dipole. This guide examines the critical influence of the antenna height above ground on its radiation pattern. Furthermore, we demonstrate how to use AN-SOF to accurately model the feedpoint at the antenna apex, enabling precise VSWR and gain predictions, an advantage often absent in traditional simulation tools.

Simulating a Super J-Pole: A 2m Antenna Analysis. This article describes a 5-element collinear antenna design for the 2m band, its radiation pattern, VSWR, and key components for optimal performance.

Experience versatile communication with this 5-in-1 J-Pole Antenna – your go-to solution for multiband excellence.

Discover the design and simulation of a multiband omnidirectional dipole antenna using AN-SOF. Operating at six key frequencies, this antenna combines closely spaced parallel dipoles into a single feed point. Explore how simulation reveals performance patterns and empowers your antenna experiments.

The Loop on Ground (LoG) antenna offers a compact solution for directional reception with a cardioid radiation pattern. This article explores its design and highlights the efficiency achieved through the Conformal Method of Moments (CMoM).

Explore dual-loop magnetic antenna design and simulation with AN-SOF. Model performance at five frequencies, showcasing radiation patterns, current distributions, and tuning values. Automated bulk simulations streamline the process.

Struggling with complex helical antenna designs for LoRa & ISM? AN-SOF overcomes limitations of traditional methods, enabling accurate simulations of 433 MHz spring helical antennas.

Explore the fundamentals of folded dipole antennas. Learn how accurate simulations using conformal modeling in AN-SOF reveal the true behavior of curved wire geometries and confirm the expected input impedance.

Explore the unique behavior of half-wave square loop antennas through AN-SOF simulations. Learn how conductor length affects current distribution and radiation patterns, with practical experiments to validate theory. Download our template to test configurations yourself!

The Quadrifilar Helix (QFH) antenna, with its unique design and circular polarization, ensures efficient NOAA satellite signal reception. This article explores the history, key characteristics, and practical modeling of QFH antennas using AN-SOF, providing valuable insights for RF engineers and enthusiasts.

Learn how stacking two V antennas can boost directivity. This article presents a practical Dual V Antenna design and explains how to scale it for any frequency. Includes simulation insights and a link to an online calculator.

Learn how to simulate axial-mode helical antennas using AN-SOF. This study analyzes LHCP gain, impedance, and axial ratio over a finite wire-grid ground plane from 75 to 95 MHz.

Learn the fundamentals of Yagi-Uda arrays with this introductory model. This simulation features a folded dipole driver with arced ends, illustrating how parasitic elements shape a highly directional 9.7 dBi beam and achieve a 15 dB Front-to-Back ratio. This baseline design provides the perfect foundation for mastering antenna feeding, tuning, and optimization using AN-SOF.

This article explores the design and analysis of log-periodic sawtooth arrays (LPSA) for HF communications. It covers their geometric principles, frequency-independent characteristics, and demonstrates how AN-SOF simulation software models these antennas, providing valuable insights into their performance and behavior.

Explore the precision of explicit boom modeling in this 9-element LPDA study. Using AN-SOF, we analyze a 200-800 MHz log-periodic array, demonstrating how the 'active region' shifts with frequency to maintain stable gain and VSWR. Learn why modeling feed lines as physical wires provides a superior analysis of wideband antenna performance.

Build a high-performance Lazy-H antenna for the 10-meter band. Learn to design and simulate your own antenna with this guide. Calculate performance with AN-SOF and discover the benefits of wide bandwidth and excellent gain. Watch the included video tutorial for step-by-step modeling.

The Extended Double Zepp (EDZ) antenna offers higher gain than a half-wave dipole, but matching to 50-Ohm coax is difficult. This article explores a phased array design using two EDZs for directional radio transmission, achieving good gain and easier impedance matching.

Explore the Four-Square Array: a phased array using six transmission lines in its feeding system. Perfect for directional control, it combines simplicity and performance for RF engineers, ham operators, and antenna designers.

Discover the Dual Reflector Moxon Antenna at 145 MHz (2m band): Amplified Gain and Enhanced Performance for VHF Enthusiasts.

Need a compact directional antenna for your UHF needs? This 4-element Biquad antenna, designed with AN-SOF, packs a powerful punch in a relatively small space. Perfect for UHF applications where space is at a premium!

Want a directional antenna for the 2m band? This article explores modeling a 5-element quad array in AN-SOF, achieving good gain and front-to-back ratio.

Explore the intricacies of the HF Skeleton Slot Antenna - a bi-directional marvel offering versatile HF communication.

Conquer the 17-meter band with the 2-element Delta Loop Beam antenna. This compact, high-gain design boasts near-perfect impedance matching, making it perfect for DX enthusiasts. Download the AN-SOF model and unlock its potential!

Elevate your satellite connections with the Moxon-Yagi Dual-Band VHF/UHF Antenna. This innovative design optimizes signal reception for seamless communication.

Explore the design of a self-resonant parabolic cylinder reflector antenna operating at 890-965 MHz. This study analyzes a back-firing dipole-reflector feed system modeled in AN-SOF, demonstrating how to achieve a stable 50-Ohm match and an asymmetric fan-beam pattern (55° Horizontal, 25° Vertical) without complex matching networks.

Discover the design and performance characteristics of a high-gain Biquad antenna with a planar reflector for the 866.5 MHz ISM band. This AN-SOF analysis details the antenna's 10.5 dBi gain, 10% impedance bandwidth, and exceptional beam symmetry, providing a professional-grade directional solution for LoRaWAN, UHF RFID, and long-range telemetry applications.

Explore a compact, self-resonant pyramidal horn antenna designed for the 2.4 GHz WiFi band. This study challenges traditional aperture theory by demonstrating how an electrically small horn, with an axial length of just half a wavelength, can achieve a high gain of 13 dBi. Through AN-SOF wire-grid simulation, we detail the waveguide feed optimization and flare-angle geometry required to bridge the gap between idealized textbook formulas and practical, high-performance DIY antenna construction.

Dive into the fascinating world of fractal antennas! This article explores their revolutionary design principles using AN-SOF simulation software. Discover how self-similar patterns unlock wider bandwidths, smaller sizes, and superior efficiency compared to traditional antennas.

Discover the power of space-filling curves through this analysis of the MI2 Fractal Loop antenna. Modeled in AN-SOF, this HF 'Snowflake Quad' achieves a resonant resistance and a 2 dBi gain. Learn how fractal iterations enable significant size reduction in HF antennas without the efficiency losses typical of standard small loops.

Is fractal geometry truly necessary for compact antenna performance? We analyze the VE9SRB 'Random' Loop an arbitrarily shaped antenna with the same wire length and aperture as an MI2 Fractal Loop. Using AN-SOF, we demonstrate that while random shapes can achieve comparable gain and impedance, the fractal geometry offers a critical advantage in usable bandwidth.

This comprehensive study explores the design and electromagnetic behavior of the rectangular microstrip patch antenna, contrasting classical transmission line theory with AN-SOF numerical simulations. By evaluating resonance, input impedance, and the impact of finite vs. infinite substrates, the article details the specific areas where analytical formulas align with full-wave results and where complex phenomena like surface waves and mutual conductance necessitate advanced computational validation.

Overcome probe inductance and simplify your antenna designs with capacitive feeding. This study demonstrates how to utilize proximity coupling to achieve a perfect 50-Ohm match and 10 dBi gain. Validated against classic experimental benchmarks, our simulation shows how internal reactance cancellation enables wideband performance in microstrip patches without external matching networks.

Discover a practical first-order method for modeling microstrip antennas on ungrounded dielectric substrates with simplicity and ease.

Explore a simple, low-cost method to simulate 2.4 GHz solid wheel antennas with reliable first-order accuracy and practical efficiency.

Discover the spiral loop antenna, a compact alternative for 80 meters band DXing. Explore its challenges and benefits, and learn how AN-SOF enables accurate modeling of its intricate wire geometry for optimal performance.

Explore the complex electromagnetic interaction between an HF monopole array and a 180-meter battleship. This AN-SOF study at 10 MHz reveals how structural resonances of a ship's hull can cause massive impedance shifts, polarization rotation, and intricate multi-lobed radiation patterns in maritime environments.

Discover how airframe resonance turns a 16m jet trainer into a massive 1,000 m² radar target at 9 MHz. This AN-SOF study analyzes RCS behavior across the HF band, detailing the transition from 'donut' patterns to forward-scattered lobes and explaining why these resonant signatures are the key to OTH radar and counter-stealth detection.

Is your car antenna truly omnidirectional? Discover how vehicle geometry reshapes FM signals in this AN-SOF study of a 100 MHz monopole. We compare roof-mount and trunk-mount placements, revealing how induced surface currents and body diffraction create unexpected directional gain and reception bias.

This article presents a Nelder-Mead optimization workflow for antenna design using AN-SOF Engine and Scilab. We demonstrate automated Yagi-Uda tuning via weighted cost functions, covering script implementation, NEC file modification, and result analysis for VSWR, gain, and front-to-back ratio optimization.

Learn to optimize antennas with genetic algorithms using AN-SOF and Scilab. Includes ready-to-use scripts for population evolution and cost functions targeting gain, VSWR, and front-to-back ratio in a 3-element Yagi-Uda design.

Master cost function design for antenna optimization: weighting strategies, parameter normalization, and performance trade-offs. Practical methods to balance gain, VSWR, and impedance matching in your designs.

This guide explains how to run a script in Scilab to simulate a 3-element Yagi-Uda antenna and get the results as a function of the spacing between the elements. A second script allows us to plot the antenna gain versus element spacing.

Struggling to design optimal 2-element quad arrays? This article explores automating the process using Scilab scripts and AN-SOF's bulk processing. Generate & simulate multiple configurations with varying element spacing, saving time and uncovering potential performance improvements!