Design and modeling of Faraday cages for substrate noise isolation

Wu, J.H.; Alamo, J.A. del

doi:10.1016/j.sse.2013.03.005

Cited by 6 publications

(3 citation statements)

References 20 publications

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“…In view of such circumstances, Wu et alshowed how a viafenced Faraday cage could reduce isolation footprint [4]. Ponchak et alhave shown how optimizing the inter-leaving distance of through substrate vias could reduce RF losses [5].…”

Section: Introductionmentioning

confidence: 99%

Improved RF Isolation Using Carbon Nanotube Fence-Wall for 3-D Integrated Circuits and Packaging

Tan

Yu²,

Hee³

et al. 2015

IEEE Microw. Wireless Compon. Lett.

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We demonstrate a proof of concept to implement carbon nanotubes (CNT) in radio frequency (RF) integrated circuits to achieve improved electromagnetic isolation. A densely packed CNT fence-wall was designed on a typical via-fenced guard structure, to create RF isolation between two transmission lines. Both simulations and measurements have shown to further reduce forward and backward coupling by 10 dB over current techniques in the 1-10 GHz range. Such CNT isolation scheme could be implemented in densely packed three-dimensional circuits and packages.

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Section: Introductionmentioning

confidence: 99%

Improved RF Isolation Using Carbon Nanotube Fence-Wall for 3-D Integrated Circuits and Packaging

Tan

Yu²,

Hee³

et al. 2015

IEEE Microw. Wireless Compon. Lett.

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“…The Faraday shield concept is widely applied in present-day industries for shielding instruments and processes from EM interference [8,9], such as medical instruments, analytical instruments, and electronic and communication systems. However, it is important to note that all the instruments and implements used inside the Faraday shield are strictly grounded to the Faraday shield itself to provide proper shielding.…”

Section: Introductionmentioning

confidence: 99%

“…Postulate 8,9: initiation of propagation of energy in free space. The traveling energy is initiated by the repulsiveness of the consecutive energy fields, which are non-identical, produced at the entity with varying spin.…”

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confidence: 99%

The heuristic model of energy propagation in free space, based on the detection of a current induced in a conductor inside a continuously covered conducting enclosure by an external radio frequency source

et al. 2020

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The objective of this study is to propose a heuristic model of energy propagation due to an anomaly; electromagnetic (EM) field penetration into a continuously covered conducting enclosure (Faraday shield) from an external radio frequency source, violating the accepted model in the EM field theory. In this study, at an arbitrarily selected frequency, range of 26.965–1,800 MHz, of an external frequency source, an EM field inside the conducting enclosure was observed, contrary to expectations, which was followed by a systematic examination. Although no induced voltage could be expected inside the enclosure according to the classical theory, the experiment revealed a clear induced voltage inside, an attenuated induced voltage of −18.0 to −1.0 dB (for the range of frequencies 26.965–1,800 MHz) was observed. Hence, these results apparently contradict the established notion that an EM field cannot penetrate a Faraday shield. Rationalizing these observations and the results of the investigation leads to an alternative model to the existing models of energy propagation in free space. In this model, novel quantities named “I-Spin-energy” and “I-Spin-energy field” are defined to replace the concept of electric and magnetic fields in the classical EM theory. The proposed I-Spin-energy model is capable of explaining the unexpected presence of the EM field inside the Faraday shield as well as the induction of an alternating current in a conductor placed inside a Faraday shield along with other existing observations in physics such as those in famous Young’s double-slit experiment on interference of light, which provided the basis for the wave theory.

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