发明名称 |
EM Sensor for determining impedance of EM field |
摘要 |
A method and device for determining the impedance of the electric and magnetic fields in the near and far fields associated with a radiating antenna. The electric and magnetic field components are sensed in a far field location and the system is calibrated using a known relationship between the electric and magnetic field components. The sensed signals are transmitted optically via a fiber optic link to an optical receiver. The received optical signals are modulated by an audio signal generator and input into a ratio detector via variable attenuators which are used to calibrate the system. Multiple subsequent ratios are measured and recorded as a function of location of the sensor.
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申请公布号 |
US4419622(A) |
申请公布日期 |
1983.12.06 |
申请号 |
US19810275470 |
申请日期 |
1981.06.19 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE ARMY |
发明人 |
CUNEO, JR., ANDREW A.;LOFTUS, JAMES J. |
分类号 |
G01R29/08;G01R29/10;(IPC1-7):G01R27/00 |
主分类号 |
G01R29/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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