A new method to measure dielectric constant and dissipation factor of printed circuit board laminate material in function of temperature and frequency

In this article, a new method to measure the values of dielectric constant and dissipation factor of printed circuit board laminate material in function of temperature and frequency is presented. The method is based on the use of microstrip ring resonator structures and a climate chamber. The presented method is experimentally tested at frequency range from 1 GHz to 10 GHz and at the temperature range from -30/spl deg/C to 105/spl deg/C. With the presented method, frequency properties of different laminate materials and coatings can be measured at wide frequency and temperature range.