B39152B4066U510

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Surface Acoustic Wave (SAW) filters are essential components of modern communication systems, commonly employed to reduce out-of-band noise and increase system reliability and performance. The B39152B4066U510 is a SAW filter designed for use in mobile phone applications, and utilizes the traveling-wave coupling effect produced by acoustic wave interaction with a vibrating surface. This article will outline the application field, and provide a brief overview of the B39152B4066U510\'s working principle.

Application Field

SAW filters play a major role in the cellular communications industry, as it is their function to filter out-of-band noise which could interfere with signal reception and reception quality. The B39152B4066U510 SAW filter is designed for mobile phone applications and finds the most use in GSM, EDGE, and UMTS networks. It is targeted primarily at communication companies looking to reduce cost and improve signal transmission quality. The filter is also suitable for a variety of other applications, such as automotive communications systems and home automation systems.

Working Principle

The B39152B4066U510 SAW filter consists of two thin piezoelectric substrates, each generally on the order of 25 micrometers thick and containing two separate interdigitated electrode patterns. The primary effect of the filter is to prevent unwanted out-of-band signals from reaching the circuitry located beyond the filter. To accomplish this, the two substrates are arranged in an alternating crossed-over configuration, with the first and third electrodes of each of the two electrode patterns connected together and the second and fourth electrodes also connected together. This arrangement creates an acoustic-wave coupling effect which transmits the signal through two electrical connections.

The B39152B4066U510 SAW filter is able to reject signals outside of a specified frequency range, while allowing signals within that range to be transmitted. To achieve this, reflective and absorptive electrodes are used to modulate the filter\'s response. An absorptive or \'High-Q\' electrode, for example, will cause the amplitude of an incident signal to decrease when passing through the filter, while a reflective or \'Dipole\' electrode will cause the signal to be scattered back towards the source. This type of modulation of filter response allows for a wide range of applications and selectivity ranges.

The B39152B4066U510 SAW filter utilizes a unique acoustic traveling wave coupling effect, allowing the filter to reject frequencies outside of its specified range. It is ideal for use in mobile phone applications, and in today\'s world of fast-paced communications, technology companies are increasingly turning to the B39152B4066U510 to ensure their communication systems are running at peak levels.

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