B39311B3729H110

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SAW filters are special electronic components made of quartz that are designed to eliminate or reduce unwanted frequencies in a signal. The B39311B3729H110 is one example of a SAW filter. In this article, we will discuss the application field of the B39311B3729H110 and its working principle.

Application Field

The B39311B3729H110 is a SAW filter used in frequency band applications. It is a low pass filter with good attenuations in the passband, which makes it ideal for use in cell phone base station applications. It is also commonly used as an interference filter in automotive applications, such as telematics and navigation systems, as well as radios, TVs, and home audio systems.

Working Principle

The B39311B3729H110 is a surface acoustic wave (SAW) filter that works by using a piezoelectric substrate. This substrate is made of quartz and has two layers in it. The top layer is made of metal and the bottom layer is made of a piezoelectric material. When a voltage is applied to the substrate, acoustic waves travel across the surface of the substrate and interact with the impedance/dielectric changes created by the top metal layers. This interaction creates an electrical field that results in a frequency response in the filter.

The B39311B3729H110 is a single-ended design, meaning it has one input and one output. The filter has a very steep cut-off at a single frequency, allowing the signal to pass through at one frequency while blocking out other frequencies. It also has excellent notch rejection and high insertion loss performance in the passband.

The B39311B3729H110 is an effective solution for reducing interference and increasing signal quality in applications where frequency band is important. Its high rejection performance and low insertion loss make it an ideal choice for many frequency band applications.

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