20S-CBSA-1.25X1.75X0.2

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Introduction
The 20S-CBSA-1.25X1.75X0.2 RF shields belong to the RFShields or more broadly electromagnetic interference (EMI) shielding family. It showcases an industry-leading shielding performance against frequency ranging from DC to above 26Ghz under certain limitations. The application field and working principle of this particular aluminum alloy shield will be analyzed in this article.

Application Field
20S-CBSA-1.25X1.75X0.2 RF Shields are mainly adopted in applications such as automotive, navigation, and consumer electronics. But given the superior shielding effectiveness, other sectors such as computing, medical, and aerospace may also benefited from this aluminum alloy shields. Generally, this RFShields can be used to reduce electric field strength and thereby reduce interfering signals from reaching critical components. This kind of shield can also be used to cover electronic components and sub-systems to protect those components and systems from being influenced by, or interfering with, external electromagnetic signals.

Working Principle of 20S-CBSA-1.25X1.75X0.2 RFShields
When an external frequency enters the 20S-CBSA-1.25X1.75X0.2 RFshields, these signals can be divided into two parts. The first part consists of reflected signals, and the second part is composed of signals that penetrate through the shielding structure. This phenomenon is generally referred to Faraday Cage effect. The RFshields, especially those made of aluminum alloy, reduce the electric field strength by reflecting part of the signal away from the interior component systems, and the transmission property reduces the signal penetrating into the interior component systems. In practice, this phenomenon is technically known as Skin Effect. The protective RFshields hold a magnetic field inside a cavity and it can cause a current to flow around the periphery of the cavity. This current cancels out the incoming signal in the cavity and blocks the signal from entering the component systems. The rising current creates more and more energy fields outside the shielding material, thus preventing the outside signal from entering.

Conclusion
In summary, the 20S-CBSA-1.25X1.75X0.2 RF shields are adopted by many industries in order to reduce interferences from external electromagnetic signals. These shields are shielded by Faraday Cage effect and Skin Effect which reduce the incoming signal before it enters the interior component systems. By doing so, the RFshields can protect those systems from interferences. From this article, we can conclude that the 20S-CBSA-1.25X1.75X0.2 RF shields are the industry-leading EMIshields that can be used to protect component systems from interfering signals.

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