B39901B8749P810

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Surface acoustic wave (SAW) filters, such as the B39901B8749P810, are frequency-selective devices used to reject undesired frequency components in order to improve system performance. These filters are an essential part of the communication system, offering large bandwidths and low distortion at high frequencies. The B39901B8749P810 SAW filter is a high-performance device designed to maximize performance and minimize insertion loss.

The B39901B8749P810 SAW filter is used in cellular communication systems, such as GSM, CDMA, Wi-Fi and WiMAX, for filtering the transmit and receive signals. It is also used in satellite communication systems, base stations, repeaters and other wireless communication systems. The B39901B8749P810 filter has a center frequency of 400MHz, pass bandwidth of 40MHz, insertion loss of 0.5dB, harmonic rejection of 40dBc, VSWR of 1.5:1 and group delay of 3 nanoseconds.

The B39901B8749P810 SAW filter is based on the longitudinal acoustic surface wave propagation phenomenon. In this filter, a piezoelectric crystal is employed as an interdigital transducer (IDT). The IDT consists of closely spaced metal fingers with alternating polarity, which vibrates in the presence of an electrical signal to produce a longitudinal acoustic wave. This wave is generated by periodically intersecting metal fingers that form the interdigital transducer, creating an electrical-acoustic transduction.

The oscillating electric field between two poles of the IDT generates an acoustic surface wave in contact with the piezoelectric material. The acoustic wave propagates across the SAW filter surface and interacts with two reflectors placed at the end, generating multiple passes across the filter surface. The generated wave gets modulated by the electric field and produces different frequency components depending on their interaction. This combination of the generated components allows the desired component to be amplified while the rest is suppressed.

The B39901B8749P810 SAW filter provides a wide range of filtering in cellular communication systems. It is an ideal solution for applications with low insertion loss and high exactness requirements. It can be customized depending on the application requirements and its center frequency and filter bandwidth can easily be adjusted. It is also a cost-effective solution that can be deployed in variety of communication systems.

The B39901B8749P810 SAW filter is quite robust and resistant to environmental effects, making it suitable for use in harsh environments. Its unique design offers high power handling capabilities and provides improved linearity and frequency stability. Furthermore, it can handle high power input and offers excellent thermal stability in comparison to other SAW filters.

In summary, the B39901B8749P810 SAW filter is an integrated filter solution for communication systems, offering high performance and low insertion loss. It is based on the Longitudinal acoustic surface wave propagation phenomenon, which provides a wide range of filtering options. It is also resistant to environmental effects, making it suitable for use in harsh environments.

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