Carbon Nanotube Based Faraday's Cage for RF Circuit Packaging

Here, a new Faraday's cage using carbon nanotubes (CNTs) for radio frequency isolation is demonstrated. Densely packed CNTs were implemented on a guard ring structure. An antenna acts as a radiative source, while a receiving probe placed inside a CNT enclosure was used to measure the received s...

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Bibliographic Details
Published in:IEEE transactions on nanotechnology 2018-11, Vol.17 (6), p.1295-1298
Main Authors: Tan, Dunlin, Yu, Jong Jen, Lim, Hock Siong, Baillargeat, Dominique, Hee, David, Eudeline, Philippe, Tay, Beng Kang
Format: Article
Language:English
Subjects:
Aluminum
Antenna measurements
Cages
Carbon nanotubes
Carbon nanotubes (CNTs)
Electromagnetism
Electronics
Enclosures
Engineering Sciences
Faraday's cage
guard ring
nanopackaging
Probes
Radio frequency
radio frequency (RF) isolation
Receiving antennas
Ring structures
Substrates
Weight reduction
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Summary:Here, a new Faraday's cage using carbon nanotubes (CNTs) for radio frequency isolation is demonstrated. Densely packed CNTs were implemented on a guard ring structure. An antenna acts as a radiative source, while a receiving probe placed inside a CNT enclosure was used to measure the received signal. A total of 5-10 dB improvement in isolation was observed with the CNT enclosure, similar to what was obtained in an equivalent test structure with an aluminum enclosure. Such CNT isolation scheme could be implemented in densely packed three-dimensional circuits and packages, suitable for compact and light weight radar applications.
ISSN:1536-125X
1941-0085
DOI:10.1109/TNANO.2018.2874653