Electromagnetic-Thermal Characterization of Microstrip Antenna Array

The lossy dielectric materials in antenna arrays will generate thermal effects that significantly degrade the electromagnetic performance and reliability of antenna arrays. Therefore, the coupled analysis of the electromagnetic-thermal effect of the antenna array is necessary. In this paper, a numerical analysis approach based on finite element method is proposed for the electromagnetic-thermal effect of microstrip antenna arrays, showing the electric field and temperature distributions. Numerical results of an array verify the accuracy of the method.