This paper presents the parameter estimation of the fractal antenna array with the virtual instrument model designed in laboratory virtual instrument engineering workbench software. In this work resonant frequency, gain and voltage standing wave ratio have been used as an output parameter with the change in three input parameters such as radius of a circular patch, height of substrate, and dielectric constant of the material. Measured output parameters have been compared with neural network outputs and error has been represented in a graphical way for each output parameter of the antenna array. Along with output parameter estimation, a designing parameter such as radius of the circular patch has also been estimated with virtual instrument model and absolute error for radius has been shown in the display window of the designed model. The proposed antenna array has been fabricated and simulated results have been validated with measured results.

本文介绍了在实验室虚拟仪器工程工作台软件中设计的虚拟仪器模型对分形天线阵列的参数估计。在这项工作中，谐振频率、增益和电压驻波比被用作输出参数，随着三个输入参数的变化，例如圆形贴片的半径、基板的高度和材料的介电常数。测量的输出参数已与神经网络输出进行比较，并且已以图形方式表示天线阵列的每个输出参数的误差。除了输出参数估计外，还利用虚拟仪器模型估计了圆形贴片的半径等设计参数，并在设计模型的显示窗口中显示了半径的绝对误差。