Abstract
This paper presents a characteristics of microstrip antenna located near radioactive source. Electric devices in high does area, such as outer space and nuclear power plant, may be damaged or unserviceable. It may be possible that gamma-ray makes change the function of electric devices or electrical properties of the substrate in the devices. Therefore it is important to make clear the influence of gamma-rays irradiation to electric properties of the material. This paper will show the characteristics of microstrip antenna under the low-level gamma rays irradiation, and it becomes the fundamental data to clarify the influence of radiative source to the material.
