|
Guest >> Sign In |
|
|
DIRECTED
ENERGY
PROFESSIONAL
SOCIETY
Abstract: 24-Symp-059
|
|
|
|
UNCLASSIFIED, PUBLIC RELEASE
Locating Components Responsible for Radiated Susceptibilities Using a Mode Stirred Tent
Determining which components (i.e. which ICs, traces, etc.) are responsible for radiated susceptibility issues is extremely challenging. A method to experimentally determine the level of radiated coupling to individual components while within a target system is investigated in this work. A near-field differential loop probe is scanned over the target device while measuring the re-radiated energy in a stirred-mode chamber. By sweeping the near field probe across the device, the total radiated power (TRP) can be found as a function of its position over the target and used to determine frequencies where the radiated energy is more likely to couple effectively to the system as well as the location of the structures acting as efficient receiving antennas. Validation done by scanning known radiators, such as patch antennas and dipoles, show a larger TRP (~7-10 dB) over the antenna than the surrounding area and allowed determination of the position of the radiators and where coupling will be maximized. Further refinement of the measurement technique, validation by scanning across multiple printed circuit boards (PCBs), and combining the results of this scan with near-field susceptibility scanning or direct injection to experimentally estimate radiated susceptibility will be the focus of future work.
UNCLASSIFIED, PUBLIC RELEASE
|