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RF Shields

RF shields are comprised of two main shielding components which are necessary for creating an electromagnetic shield. These components are the ground plane and the enclosure. The ground plane helps collect and disperse electromagnetic fields to ground, while the enclosure serves to contain the electronic components in a metallic container.

23-CBSF-2.5X3.0 Application Field and Working Principle

The 23-CBSF-2.5X3.0 is a ready-to-use RF shield designed for applications such as cellular telephones, radiofrequency (RF) circuits and systems, computer peripherals, automotive electronics, medical equipment, and other applications where shielding performance is at a premium. This shield offers an extremely low resistance path to ground. It offers superior shielding and cross-coupling attenuation performance, as well as excellent thermal management characteristics.

The 23-CBSF-2.5X3.0 works by redirecting high frequency energy away from sensitive electronics by providing a complete enclosure and grounding system. This RF shield includes two metal walls, one being totally sealed with the other having minimal gaps or slots to vent heat and enable access to the electronics inside. The shield is then grounded to the housing and the internal components to ensure total EMI protection. The sealed wall provides a barrier against RF intrusion from any outside source, while the minimal ventilation slots allows the internal components to remain cool while in operation. The shielding performance is maximized when all the components of the shield, including any vents, are maintained to a minimum.

To optimize performance, all metal surface of the shield should be completely flat and the edges provided are folded and soldered to ensure a low resistance path of the RF signal to ground. The outer shell of the shield should also be grounded as this provides a low impedance path for the RF to escape. The 23-CBSF-2.5X3.0 is designed for wall mount applications, allowing for easy installation and providing a secure, long-lasting seal.

In addition to providing shielding protection, the 23-CBSF-2.5X3.0 also offers various features such as a built in ESD protection circuit, ground pin, RF detection, insulation resistance measurement, and an EMI/RFI filter. These features make the shield suitable for use in even the most demanding RF environments. The shield also allows for customization, giving engineers the option to include extra components to meet any specific application requirements.

Overall, the 23-CBSF-2.5X3.0 is an ideal RF shield for a wide range of applications. It offers low signal loss, high shielding attenuation, excellent thermal management, and a robust design. With its superior shielding performance and wide range of customization options, this RF shield is sure to provide the protection needed for any application.

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