Theoretical investigation of the field conditions in a vibrating reverberation chamber with an unstirred component

In this paper, we examine the use of a vibrating reverberation chamber in which an equipment under test (EUT) is directly illuminated by a source antenna. A three-dimensional theoretical model, based on a simplified ray tracing method has been applied on a reverberation chamber whose dimensions were varied. The field distribution together with the field homogeneity was investigated, introducing the Rice distribution due to the presence of the line-of-sight component between the antenna and the EUT.     

高功率长寿命氦-镉激光器

连续氦-镉激光器自从1967年研制成功以来,已有大量文章报导了氦-镉激光器的激励机理.而对大功率长寿命实用化的器件报导则不多.国外氦-镉激光器大多用热阴极,热阴极具有发射能力和抗溅射能力强的优点,但热阴极制作困难,使用麻烦,易损坏.我们是用冷阴极,经过适当处理后,同样具有发射能力和抗溅射能力强的优点.