B39431B3732H110 Filters

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Surface Acoustic Wave (SAW) filters are essential components of modern electronics, used in many applications such as cellular phones, radio receivers, and medical equipment. They are used to filter out unwanted frequencies from a signal, allowing only certain frequencies to be detected. The B39431B3732H110 is an example of a SAW filter specifically designed for a wide range of applications.

The B39431B3732H110 is a high-performance SAW filter designed for the global band spanning from 700 MHz to 2.5 GHz. It offers excellent suppression of adjacent channel interference, low insertion loss, and a wide temperature range. The module is small and rugged, making it suitable for mobile applications. The filter has a low power consumption, temperature stability, and wide bandwidth. It is also RoHS compliant.

In terms of its application field, the B39431B3732H110 is primarily used in cellular radio transmission systems, which require high selectivity and low noise, such as Wi-Fi, Bluetooth, and GSM. It can also be used in a variety of other applications including test and measurement, cable TV, and video transmission.

As for working principle, the B39431B3732H110 is a multi-cavity surface acoustic wave (SAW) filter that consists of several different layers of interleaved regions. A metallic layer serves as a reflector, while a piezoelectric layer generates a traveling wave that propagates through the device. The wave is scattered by the cavities and passbands. The passbands correspond to the frequencies that are allowed to pass through the filter, while the cavities correspond to the frequencies that are rejected.

The passbands and cavities are determined by the geometry of the filter, as well as the thickness of the layers. Adjusting the thickness of the layer, as well as the distance between the layers, can be used to fine-tune the frequency response. The B39431B3732H110 also has a high tolerance to tolerances of the manufacturing process, which means that it is easy to manufacture.

The B39431B3732H110 is an example of a SAW filter that combines low-loss, wideband performance with a rugged and small form factor. Its wide application field and easy to use working principle make it a valuable component for many different applications.

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