B38741W1133W310

Series:	*
Part Status:	Last Time Buy
Frequency - Center:	--
Bandwidth:	--
Insertion Loss:	--
Ratings:	--
Applications:	General Purpose
Mounting Type:	--
Package / Case:	--
Height (Max):	--
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Introduction

Surface acoustic wave (SAW) filters are used in radio-frequency (RF) communications, wireless local area networks (WLANs), and mobile communications. The B38741W1133W310 is an example of a SAW filter. This paper will discuss the application field and working principle of the B38741W1133W310 and explain how it is classified as a SAW filter.

Application Field

The main application field for the B38741W1133W310 is in radio-frequency applications. This SAW filter is specifically designed for the cellular frequency band, with a center frequency of 1133.3 MHz and a 3 dB bandwidth of 370 kHz. It does not require additional external components and is capable of filtering out interfering signals from other frequencies without attenuating the wanted signals.The B38741W1133W310 is also suitable for use in WLANs and for mobile communications. As the filter is very small, it can easily be integrated into mobile phones and other small devices. It is relatively low powered and has a low insertion loss, making it an ideal component for use in mobile communications.

Working Principle

SAW filters are sensitive devices that use piezoelectric materials to convert electric signals into sound waves. The B38741W1133W310 is made of two layers of lithium niobate (LiNbO3). The top layer is electrically conductive and is known as the “transducer” layer. The bottom layer is insulating and is known as the “scatter plate” layer.The transducer layer is used to convert electric signals into sound waves. When an electrical signal is applied to the transducer, it vibrates and creates a sound wave that propagates across the surface of the filter. At the same time, the scatter plate layer absorbs the incoming sound wave. The sound wave is then reflected back and forth between the transducer and the scatter plate layers and is selectively filtered out depending on its frequency. This creates a band-pass response in the frequency domain, which is the primary function of this type of filter.

Conclusion

The B38741W1133W310 is a SAW filter specifically designed for radio-frequency applications, such as cellular networks, WLANs, and mobile communications. It is capable of filtering out interfering signals without attenuating wanted signals. It is made of two layers of lithium niobate (LiNbO3), with the top layer functioning as a transducer to convert electric signals into sound waves. The incoming signals are then selectively filtered out depending on their frequency.

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