一种基于电偶极子和集成巴伦的新型切向电场传感器，用于覆盖GPS频段的近场测量。

A Novel Tangential Electric-Field Sensor Based on Electric Dipole and Integrated Balun for the Near-Field Measurement Covering GPS Band.

作者信息

Wang Jianwei, Yan Zhaowen, Liu Wei, Su Donglin, Yan Xin

机构信息

School of Electronic and Information Engineering, Beihang University, Beiijng 100191, China.

EMC Laboratory, Missouri University of Science and Technology, Rolla, MO 65409, USA.

出版信息

Sensors (Basel). 2019 Apr 26;19(9):1970. doi: 10.3390/s19091970.

DOI:10.3390/s19091970

PMID:31035501

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6539132/

Abstract

This paper presents a novel tangential electric-field sensor with an embedded integrated balun for sensing up a tangential electric field over a circuit surface in the near-field measurements covering the GPS band. The integrated balun is embedded into the sensor to transform the differential voltage induced by the electric dipole into the single output voltage. The measurement system with a high mechanical resolution for the characterizations and tests of the sensor is detailed in this paper. The frequency response of the sensor characterized by a microstrip line from 1.35 GHz to 1.85 GHz (covering the GPS band) is rather flat. The rejection to the magnetic field of the sensor is up to 20.1 dB. The applications and validations of the sensor are conducted through passive/active circuit measurements.

摘要

本文提出了一种新型切向电场传感器，其内置集成巴伦，用于在覆盖全球定位系统（GPS）频段的近场测量中检测电路表面上的切向电场。集成巴伦嵌入到传感器中，将电偶极子感应的差分电压转换为单端输出电压。本文详细介绍了用于传感器特性表征和测试的具有高机械分辨率的测量系统。该传感器由一条微带线表征，其在1.35吉赫兹至1.85吉赫兹（覆盖GPS频段）的频率响应相当平坦。该传感器对磁场的抑制能力高达20.1分贝。通过无源/有源电路测量对该传感器进行了应用和验证。