B39389K2966M100

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Surface Acoustic Wave (SAW) filters are electronic components used extensively in radio frequency communications systems. They can be used to improve the signal-to-noise ratio, reduce interference, and reduce the amount of energy needed to transmit a signal. SAW filters are used to filter out undesirable frequencies from the desired frequencies, thus improving the performance of the system.

The B39389K2966M100 SAW filter is a band-pass filter designed to transmit the frequencies between 890 MHz and 990 MHz. It is typically used in cell phone base stations and other wireless communication systems. The filter is constructed from a substrate layer of borosilicate glass, on which two interdigital transducers (IDT) are printed. An interdigital transducer is a pattern of alternating metal and dielectric lines, which can transmit surface acoustic waves through the substrate layer.

The B39389K2966M100 is an asymmetric filter designed to reject frequencies below 890 MHz and above 990 MHz. This is accomplished mainly by the asymmetrical nature of the IDTs, combined with the use of multiple IDTs in a series. The series of IDTs are separated by a delay line of a specific length, which allows the incoming signal to be divided and filtered into its respective frequencies. The filter then allows the frequencies between 890 MHz and 990 MHz to pass through, while filtering out the undesirable variations outside this range.

In operation, the B39389K2966M100 SAW filter receives the incoming signal at the input terminal. The signal then travels through the delay line and is alternately split and recombined at the individual IDTs through the use of surface acoustic waves. Depending on the length, amplitude, and orientation of the individual IDTs, different frequency ranges are filtered out and allowed to pass through. The filtered signal is then output at the output terminal to continue its journey through the communication system.

Overall, the B39389K2966M100 SAW filter is a useful tool for communication systems that require a high level of signal quality and reliability across different frequency bands. By filtering out interference and unwanted frequencies, the signal-to-noise ratio is improved, which can lead to increased system performance. With its wide range of applications, the B39389K2966M100 SAW filter is an essential tool for any communication system.

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