B39202B7846K410

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Surface acoustic wave (SAW) filters are devices that use sound waves traveling along the surface of a piezoelectric material (typically a LiTaO3 or ZnO substrate) to create an efficient high-Q filter that can produce very sharp frequency responses. The B39202B7846K410 SAW filter is a high-performance device specifically designed for mobile communication applications. It offers an exceptionally low insertion loss combined with a sharp selectivity curve in order to provide superior out-of-band rejection.

The working principle of the B39202B7846K410 SAW filter is based on two features: the acoustic propagation properties of SAW resonators, and the ability of SAW technology to provide extremely sharp and efficient selectivity. The first feature is related to the fact that when an acoustic wave propagates along a piezoelectric substrate, the wave velocity is different depending on the frequency or wavelength of the wave. This wave velocity difference, in turn, affects the impulse response of the SAW filter, which can be adjusted by the selection of the specific piezoelectric substrate. Once the desired impulse response is achieved, the device can be tuned and adjusted so as to obtain the desired frequency response.

The second feature is related to the use of multiple interdigital transducers (IDT) to achieve sharp selectivity. IDTs are components consisting of a series of metal electrodes and capacitors designed to convert a single frequency signal into a multiple frequency signal. When two IDTs suffering from acoustic wave propagation are used in tandem, the effect is a comb-like filter with very sharp selectivity. In the case of the B39202B7846K410 SAW filter, two IDTs are interconnected in such a way as to form the sharp selectivity curve, while allowing high inserted level and high out-of-band rejection.

The B39202B7846K410 SAW filter is ideal for use in mobile communication applications such as 4G and 5G networks. Due to its sharp selectivity curve and high out-of-band rejection, it provides superior performance in these types of networks. The device can also be used in other applications such as automotive navigation systems, Wi-Fi and Bluetooth systems, and FM radio. In addition, the device can be custom-tuned to meet specific requirements for high-frequency applications.

The B39202B7846K410 SAW filter is an efficient and reliable device designed for mobile communications applications. With its sharp selectivity and high out-of-band rejection, it offers superior performance compared to other filter technologies. Its use in applications such as 4G and 5G networks, automotive navigation systems, Wi-Fi and Bluetooth systems, and FM radio ensures that it will remain a popular choice for filtering applications in the future.

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