Tag - antenna lab

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.

Can AI really design antennas? We put it to the test, transforming chatbot suggestions into a working 3-element Yagi-Uda. Discover how AI accelerates design, where it stumbles, and why your expertise still makes the difference.

Discover the new wire selection and editing tools in AN-SOF! From bulk selection with the Selection Box to precise control via the Tabular Input window, these features streamline antenna modeling. Modify multiple wires effortlessly and enhance your workflow. Explore these powerful tools today!

Traditional coil inductance calculations often rely on simplified approximations. AN-SOF offers a more accurate approach by considering factors like non-uniform magnetic fields, conductor losses, and complex coil geometries. By using AN-SOF, you can obtain precise inductance values, visualize magnetic field and current distributions, to improve your coil designs.

Dive into the world of advanced antenna design with our latest tutorial! Discover the art of connecting Log-Periodic Antenna Elements using Transmission Lines in the AN-SOF Antenna Simulator.

Introducing AN-SOF’s Conformal Method of Moments, an advanced approach to wire antenna design. By overcoming several limitations of traditional techniques, this method enables accurate modeling and analysis of antennas with complex geometries.

Discover the vital role of historical theoretical results alongside advanced numerical calculations in accurately approximating current distribution on linear antennas.

Rev up your AN-SOF skills with this video tutorial featuring two fast methods for adding elevated radials.

Understand the difference between Front-to-Rear (F/R) and Front-to-Back (F/B) ratios, key metrics for antenna directivity. Learn how to calculate and interpret these values using AN-SOF software. Improve your antenna designs with this essential knowledge.

This article validates AN-SOF's results against established formulas for V antennas, highlighting its advanced modeling capabilities. We explore optimal angles, directivity enhancements, and precise calculations, making AN-SOF a powerful tool for RF engineers, ham radio enthusiasts, and antenna designers.

Validate the electromagnetic behavior of the helical antenna in its Normal Mode through this detailed study referencing the foundational work of John D. Kraus. By analyzing the transition from a 3D helical structure to its theoretical loop-dipole equivalent, this article demonstrates how AN-SOF accurately captures the broadside radiation pattern and the asymptotic gain limit. Essential reading for engineers and designers modeling compact curved radiators and electrically small antennas.

Validate the precision of the Conformal Method of Moments (CMoM) through this rigorous study of small loop antennas. By comparing simulated circular and square loops against classical asymptotic theory, we demonstrate how AN-SOF accurately models radiation resistance and directivity in the low-frequency limit, where antenna size is a tiny fraction of a wavelength. This article provides essential insights into shape-independence and numerical stability for electrically small radiator design.

Verify the numerical precision of the AN-SOF engine through this detailed validation study of cylindrical dipoles. By testing the principle of energy conservation, comparing input resistance against far-field radiation resistance, we demonstrate a near-perfect correlation with errors below 0.035%. This article also explores gain convergence, establishing that 10 segments per wavelength are sufficient to achieve high-precision results for linear antenna modeling.

Examine the numerical stability of cylindrical dipole modeling through this rigorous convergence study. By analyzing input impedance as a function of discretization density and length-to-radius ratios, this article demonstrates how AN-SOF overcomes the traditional divergence issues found in many MoM codes, such as NEC-2. While older engines often fail to provide convergent reactance values when using a delta-gap source with fine segments, AN-SOF's exact kernel ensures monotonic stability. Validation against the classical 73.1 + j 42.5 Ohm half-wave dipole thin-wire limit and convergence analysis confirm the engine's precision for both resonant and anti-resonant linear antennas.

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.