[1]景莘慧,冯伟,周忠元.吸波材料反射率拱形法测试中杂散耦合抑制技术[J].东南大学学报(自然科学版),2016,46(5):997-1001.[doi:10.3969/j.issn.1001-0505.2016.05.017]
 Jing Shenhui,Feng Wei,Zhou Zhongyuan.Spurious coupling suppression technology for reflectivity measurement of radio frequency absorbers in arch method[J].Journal of Southeast University (Natural Science Edition),2016,46(5):997-1001.[doi:10.3969/j.issn.1001-0505.2016.05.017]
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吸波材料反射率拱形法测试中杂散耦合抑制技术()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
46
期数:
2016年第5期
页码:
997-1001
栏目:
电磁场与微波技术
出版日期:
2016-09-20

文章信息/Info

Title:
Spurious coupling suppression technology for reflectivity measurement of radio frequency absorbers in arch method
作者:
景莘慧冯伟周忠元
东南大学机械工程学院, 南京 211189
Author(s):
Jing Shenhui Feng Wei Zhou Zhongyuan
School of Mechanical Engineering, Southeast University, Nanjing 211189, China
关键词:
拱形法 吸波材料 反射率 驻波比 杂散耦合
Keywords:
arch method absorbers reflectivity standing wave ratio spurious coupling
分类号:
TN06
DOI:
10.3969/j.issn.1001-0505.2016.05.017
摘要:
为了简化吸波材料反射率拱形法测试中的测试程序并减小测试系统的不确定度,参考国际标准IEEE-STD-1128—1998及《射频吸波材料吸波性能测试方法》(GJB 5239—2004),基于自主研制的1~6 GHz拱形法测试系统,提出了吸波材料反射率测量的新程序和杂散耦合抑制技术.将原国际标准中推荐采用的驻波比测量仪测试程序改进为利用矢量网络分析仪测量吸波材料反射率,通过分析矢量网络分析仪接收端口接收电平的驻波变化规律,将经过吸波材料衰减后的反射信号与发、收天线间的杂散耦合信号进行分离.结合杂散耦合的开阔空间测试结果,可对吸波材料反射率测量结果进行修正.实验证明,该方法可有效抑制杂散耦合、减小测试系统的不确定度.
Abstract:
To simplify the procedure for the reflectivity measurement of radio frequency absorbers using arch measurement system and decrease the measurement uncertainty, a new procedure and spurious coupling suppression technology for reflectivity measurement of radio frequency absorbers were introduced against the background of IEEE-STD-1128—1998 and Chinese military standard GJB 5239—2004 based on the arch measurement system developed in Southeast University. The reflectivity measurement of radio frequency absorbers was conducted by using vector network analyzer(VNA)instead of IEEE-STD-1128 recommended standing wave ratio meter. By analyzing standing wave at the receiving port of VNA, the reflected signal from absorbers under test and the spurious coupling signal between transmitting and receiving antennas were separated. Combining with the measurement result of the spurious coupling level, the reflectivity measurement of absorbers can be corrected. It is proved that the proposed method can suppress spurious coupling and decrease the uncertainty of the measurement.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2016-03-24.
作者简介: 景莘慧(1976—),女,博士,副教授,look@seu.edu.cn.
基金项目: 国家自然科学基金资助项目(50907006).
引用本文: 景莘慧,冯伟,周忠元.吸波材料反射率拱形法测试中杂散耦合抑制技术[J].东南大学学报(自然科学版),2016,46(5):997-1001. DOI:10.3969/j.issn.1001-0505.2016.05.017.
更新日期/Last Update: 2016-09-20