B39458M3568M201

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Surface acoustic wave (SAW) filters are a type of passive microwave filter, which acts as a frequency selective device for a wide range of applications. They are used in many areas such as wireless broadband, satellite communications, military signaling, and automotive and consumer electronic markets. The B39458M3568M201 is a type of SAW filter with excellent performance characteristics, providing excellent selectivity over its specified frequency range. In this article, we will discuss the application field and working principle of the B39458M3568M201 SAW filter.

The B39458M3568M201 SAW filter is designed to operate in high-frequency applications, such as those found in cellular phone systems, wireless broadband links, and satellite communication systems. This filter has a wide operating frequency range of 0.87–1.05 GHz and provides excellent selectivity. Additionally, it is designed to operate in high-temperature environments (up to 240°C) and has a low insertion loss, making it ideal for use in environments where both high temperature and high frequency are required. The filter is constructed using thin-film and bulk acoustic wave (BAW) technology, which provides superior performance over traditional SAW filters.

The basic concept behind the working principle of the B39458M3568M201 is the excitation of surface acoustic waves (SAWs) on a piezoelectric substrate. The SAWs are generated by the application of an RF frequency signal to the transducer electrodes patterned on the substrate surface, such as the IDT (interdigital transducer) shown in the figure. By applying RF energy to the IDT, the electrodes vibrate in a periodically alternating manner, causing mechanical waves to propagate across the surface of the substrate along the IDT pattern. The SAW produces a frequency-selective response, as the waves propagate along the surface and reflect off of the edges.

The B39458M3568M201 is designed specifically to operate in high temperature environments, such as those found in automotive applications, consumer electronic devices, and military systems. The filter utilizes thin-film technology to produce a highly selective response over its operating frequency bandwidth. Additionally, the IDT pattern is designed to produce minimal losses when compared to more traditional SAW filters. As a result, the filter provides excellent selectivity and low insertion loss. Furthermore, the filter is designed to operate over a wide temperatures range, up to 240°C.

In conclusion, the B39458M3568M201 is a SAW filter designed to operate in high-frequency applications with excellent performance characteristics. The filter utilizes thin-film and BAW technology to produce a frequency-selective response over its operating frequency bandwidth. Additionally, it is designed for use in high-temperature environments, providing excellent selectivity and low insertion loss. The filter is ideal for use in wireless broadband systems, cellular phone systems, satellite communication systems, and automotive and consumer electronics applications.

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