小型屏蔽体屏蔽效能测试系统全向辐射源设计  

The design of omnidirectional radiated source for small shield shielding effectiveness tests

作　　者：江岩[1] 钱时祥 

机构地区：[1]中国电子科技集团公司第四十一研究所,青岛266555 [2]电子测试技术重点实验室,青岛266555

出　　处：《国外电子测量技术》2013年第3期47-49,共3页Foreign Electronic Measurement Technology

摘　　要：针对较小体积的屏蔽体,按照内置辐射法测量屏蔽效能,需将信号源和天线内置到屏蔽体内部。为了将信号源和天线集组合成辐射源,天线的尺寸与信号源的体积是辐射源设计的重要因素。介绍一种基于振荡源激励梳状波发生器获得宽频带的微波信号,结合盘锥天线,实现1～10GHz频率范围内多频点、高稳定、全方位特性小型辐射源的设计。在屏蔽效能测试系统中,该辐射源作为发射部分,可实现小型屏蔽体的屏蔽效能测量。For the small size shield, the test of shielding effectiveness in built-in radiation mode needs to set the signal source and the antenna into the shield. In order to combine the source and antenna into the radiation source,the size of the antenna and the volume of the signal source is the important factor in the design of radiant source. This paper introduces a design of small radiant source which based on the oscillator incentive comb generator for the widehand signal and com- bined with the plate cone antenna, realize such characteristic as the multiple frequency point, high stability and multimode in the frequency range of 1-10 GHz. In the shielding effectiveness test system,the radiation source as the emission part, the system can realize the shielding effectiveness test of small shield.

关 键 词：辐射源 盘锥天线 屏蔽体 屏蔽效能 

分 类 号：TN97[电子电信—信号与信息处理]