Article
A Passive Intermodulation Source Identification Measurement System using a Vibration Modulation Method
IEEE Transactions on Electromagnetic Compatibility
Abstract
A measurement system which uses acoustic vibration to locate passive-intermodulation (PIM) sources in base station antennas is presented. This measurement system uses mechanical vibration to modulate the PIM signal. The modulation of the PIM signal is detected, and its strength or presence/absence is used as guidance for selecting the location of the vibrating transducer. For the method to be successful, the PIM signal must be caused by loose mechanical contacts or loose nonlinear materials. By introducing the acoustic vibration at different locations in the base station antenna and observing if the PIM signal is modulated by the acoustic frequency, the most likely location of the PIM source is identified.
Department(s)
Electrical and Computer Engineering
Second Department
Mechanical and Aerospace Engineering
Keywords and Phrases
- Antennas,
- Base Stations,
- Contacts (Fluid Mechanics),
- Intermodulation Distortion,
- Intermodulation Measurement,
- Location,
- Modulation,
- Acoustic Vibration,
- Base Station Antennas,
- Measurement System,
- Mechanical Contact,
- Nonlinear Materials,
- Passive Intermodulation (PIM),
- Source Identification,
- Vibration Modulations,
- Vibrations (Mechanical)
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2017 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.
Publication Date
12-1-2017
Publication Date
01 Dec 2017
Disciplines
Citation Information
Sen Yang, Wei Wu, Shuai Xu, Yaojiang Zhang, et al.. "A Passive Intermodulation Source Identification Measurement System using a Vibration Modulation Method" IEEE Transactions on Electromagnetic Compatibility Vol. 59 Iss. 6 (2017) p. 1677 - 1684 ISSN: 0018-9375; 1558-187X Available at: http://works.bepress.com/daniel-stutts/1/