Conductive RFI noise reduction using Antenna ground isolation for mobile devices

RF Antennas in mobile devices are susceptible to platform noises. A significant amount of noise generated by noisy nets propagates through system ground plane conductively to RF antennas. By electrically separating antenna ground from system ground, antenna isolation from noisy nets can be improved....

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Bibliographic Details
Published in2016 URSI Asia-Pacific Radio Science Conference (URSI AP-RASC) pp. 1 - 3
Main Authors Jaejin Lee, Hao-han Hsu, Chen, Joseph, Ying Ern Ho
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.08.2016
Subjects
Antenna
Antenna measurements
Isolation
Meteorology
Mobile devices
Mobile handsets
Radar
Radar antennas
Radio frequency
Radio frequency interference
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Summary:RF Antennas in mobile devices are susceptible to platform noises. A significant amount of noise generated by noisy nets propagates through system ground plane conductively to RF antennas. By electrically separating antenna ground from system ground, antenna isolation from noisy nets can be improved. In this study, ferrite beads and a 10-mm physical gap were implemented to the conventional system and showed an 18-dB reduction in coupling coefficient between a WiFi antenna and aggressor.
DOI:10.1109/URSIAP-RASC.2016.7883549