Quality Evaluation of Circular Aperture Antennas

Circular aperture antennas require deductions of mathematical expressions that involve integrating Bessel functions. The analysis of Fourier Integral of a Circular Aperture Antenna is important to understand the behavior of this type of antenna. Fourier analysis can be used to calculate the antenna radiation patterns and the field distribution in far-field region. It is also useful for designing reflector antennas and calculating the impedance parameters, like input impedance and radiation resistance. In addition, Fourier Integral can be used to calculate Bessel coefficients which are necessary when computing the far-field pattern using Bessel function expansions. In this paper, we will examine various properties of these integrals, such as their range of validity, accuracy, and numerical stability. We will also discuss the use cases for this integral in antenna design and analysis as well as its limitations. The results obtained from this study may help to improve the performance of circular aperture antennas in different applications.