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Category - Linear Antennas

Discover validation examples featuring cylindrical antennas and arrays of dipoles.


Simple Dual Band Vertical Dipole for the 2m and 70cm Bands
Discover the perfect balance: a simple dual-band vertical dipole, AN-SOF modeling, and real-world results. Elevate your ham radio experience.
Linear Antenna Theory: Historical Approximations and Numerical Validation
Discover the vital role of historical theoretical results alongside advanced numerical calculations in accurately approximating current distribution on linear antennas.
Validating Panel RBS Antenna with Dipole Radiators against IEC 62232
This article validates the results obtained from AN-SOF by replicating a panel antenna model with nine dipole radiators. The model used for validation was published by the IEC and an excerpt of the document can be accessed by following this link...
Directivity of V Antennas
The V antenna is a traveling wave antenna where high directivity can be achieved when the length of each arm of the V is greater than the wavelength. However, the angle between the arms must be chosen so that the fields radiated by both arms constructively add in the forward direction. Several authors have investigated […]
Enhanced Methodology for Monopoles Above Radial Wire Ground Screens
With the utilization of enhanced techniques for impedance calculation of monopoles above radial wire ground screens, our study paves the way for improved performance in LF/MF antenna design.
Dipole Gain and Radiation Resistance
In absence of power losses, the power radiated by any antenna must be equal to its input power. In other words, the radiation resistance of a lossless antenna must match its input resistance. When comparing these two resistances we have another validation check of a numerical method. Fig. 1 shows the input resistance of a […]
Convergence of the Dipole Input Impedance
One of the validation checks consists of incrementing the number of segments as the antenna length, radius and source gap remain constant. In this way, the input impedance should converge to an asymptotic value as the number of segments increases. Fig. 1 shows the input impedance of a center-fed dipole antenna as a function of […]
Impedance of Cylindrical Antennas
Since there is a lot of theoretical data available for the input impedance of a linear antenna, we will compare the simulation results with those obtained theoretically. Among the theoretical results, we have chosen the King-Middleton’s because from our point of view it is the most elaborate analytical solution. It is based on an expansion […]