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FI168B24956D-T Application Field and Working Principle

RF Filters are a type of Radio Frequency filter, used to filter unwanted signals and frequencies from a desired frequency signal, to ensure desired signals are received and unwanted signals are blocked. The FI168B24956D-T RF Filter is a type of bandpass filter, designed to pass signals between two specific frequencies, or bands, while rejecting any signals outside of this band.

The FI168B24956D-T RF Filter is designed for use in the telecommunications and wireless communication fields, where clean signal transmission is required. It is often deployed in base station and phone communication systems, where it is used to reduce unwanted interference to ensure better signal quality, along with stronger receiving and transmitting capabilities. As an example, it is used in cellular base station equipment for LTE/3G/CDMA/GPS/WCDMA/GSM applications, and supports a maximum frequency of 3.13GHz.

Form Factor and Mechanical Specifications

The FI168B24956D-T RF Filter is a surface mount device, designed for easy installation into board mounted components. The filter features low power insertion loss, high stop-band rejection level, and a very narrow transition band resulting in excellent stop-band attenuation performance. The product measures 7mm x 5mm x 2.4mm in size and has an operating temperature range of -55°C to 85°C.

Working Principle

The working principle of a bandpass filter is to allow signals to pass between two specific frequency bands, while attenuating, or blocking, any signals outside of this range. The FI168B24956D-T RF Filter uses an advanced monolithic ceramic construct to achieve this. The ceramic component is made up of parallel and interleaved resonators, with some resonators arranged to resonate on a desired center frequency, and others used to attenuate signals outside of the center frequency band.

The FI168B24956D-T RF Filter has a -3dB fractional bandwidth of 0.02%, meaning that the entire frequency band should be supported and filtered with a maximum allowed insertion loss of -3dB or lower. This ensures that signals in the defined frequency band are not disturbed and the signal quality is preserved.

Conclusion

The FI168B24956D-T RF Filter is a type of bandpass filter designed for use in the telecommunications and wireless communication fields, where clean signal transmission is required. It uses an advanced monolithic ceramic construction to allow signals to pass between two specific frequency bands, while attenuating any signals outside of this range. Its small form factor, low insertion loss, and high stop-band rejection level make it an ideal filter for use in LTE/3G/CDMA/GPS/WCDMA/GSM applications.

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