Titlebook: EMC-Compatible Shielding; Magnetic Materials f Frank Gräbner Book 20211st edition Springer Fachmedien Wiesbaden GmbH, part of Springer Natu

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https://doi.org/10.1007/978-3-642-90901-6References: [56, 63].

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IntroductionThis book is aimed at engineers, scientists, students, researchers and practical professionals. Electromagnetic compatibility (EMC) has been developing since its beginnings in the 1950s to 1960s as a result of the pulse problems in automation/control engineering.

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Shielding Example: Inner Lining of a 2.4 GHz Low-Noise Amplifier Housing to Suppress Higher ModesMetal housings of amplifier circuits can, depending on the geometry and design of the circuit, favour the emergence of higher modes inside the housing. This can cause undesirable natural vibrations (oscillations) in the amplifier at higher frequencies and thus considerably worsen the noise characteristics in the useful frequency range.

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PCB ShieldingIn the following chapter, the application of the newly developed nanoferrite layer as an absorbing intermediate layer on a test PCB structure is discussed. A simple strip resonator couples out higher frequency harmonics, which are generated by a simple oscillator component (Figs. 10.1 and 10.2).

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Shielding Effectiveness on Layers for CablesUltra-thin layers have a layer thickness of several monolayers to several nm (. ≈ 0.1 to 10 nm) [45]. Ultra-thin magnetic layers also have a possible absorption property if the electrical conductivity is kept low.