B38941W1137W310

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Introduction

B38941W1137W310 is one type of SAW Filter, which stands for Surface Acoustic Wave filter. It is a type of electronic filters and is mostly used in wireless systems to ensure the purity of signal sent or received. SAW filters are actively used in various wireless systems, including, Wi-Fi, Bluetooth, GPS and other applications.SAW filters are basically a type of electromechanical transducer that converts electrical signals to mechanical waves on a piezoelectric surface. As a filter, it passes frequencies with low attenuation while rejects frequencies above or below the desired frequency range. It is mainly composed of a piezoelectric substrate, inter-digital transducers and a metal film.

Application Field of B38941W1137W310

B38941W1137W310 is a type of SAW filter mainly used in consumer applications. It can be found in smartphones, WLAN equipment, wireless networks, medical equipment, navigation systems and automotive infotainment systems. It is also used in 5G communication systems to provide interference-free operation of mobile phones.In smartphones, the B38941W1137W310 SAW filter is used to isolate the global positioning system (GPS) from other services. The GPS signals are filtered out using the SAW filter and delivered to the navigation system without being disturbed by other radio frequency interference. In WLAN equipment, the filter helps reduce the interference from other WLANs and ensures that the signal is free from external noise.In medical equipment, the filter is used to ensure that the signals sent out by medical instruments are not affected by external interference and are free from any distortion. In navigation systems, the SAW filter helps to enhance the accuracy of the location and navigational data while in automotive infotainment systems, the filter ensures that lower car noise is not heard while listening to music or talking on the phone.

Working Principle of B38941W1137W310

The working principle of B38941W1137W310 SAW filter is based on the piezoelectric effect. The piezoelectric effect is a phenomenon in which a material produces an electric potential when subjected to mechanical stress. In SAW filters, an integrated circuit (IC) is placed between the transducers which is stimulated by electrical impulses from the signal source. This electrical signal is then converted into a mechanical wave in the piezoelectric substrate.The mechanical wave then travels across the surface of the substrate and is received by inter-digital transducers. The frequency of the incoming signal is then determined and the wave is either passed or blocked according to the filter characteristics. The frequency range is determined by the width of the transducer and the spacing between the transducers.The waves that are outside of the desired frequency range are blocked and the ones that are within the desired frequency range are amplified and passed on. The signal is then further amplified and converted back into an electrical signal, completing the whole process.

Conclusion

The B38941W1137W310 SAW filter is an important component in various wireless systems used in consumer and industrial applications. It is mainly used in smartphones, WLAN equipment, medical equipment, navigation systems and automotive infotainment systems. Its working principle is based on the piezoelectric effect where electrical signal is converted into mechanical waves and the waves are filtered according to the desired frequency range.

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