B39380K2959M100

SAW filters are specialized electronic devices primarily used in telecommunications. They are used to shape or select the desired frequency spectrum in various signal-processing applications. The B39380K2959M100 is a Surface Acoustic Wave (SAW) filter that meets the requirements of many applications. This article will discuss its application field and working principle.

The most common application for the B39380K2959M100 is a mobile phone application. In a cellular phone, a SAW filter device helps shape or select the desired analog RF frequency spectrum. This allows the phone to transmit and receive signals with better fidelity, reducing any possible interference from other wireless devices. The filter is also used for other wireless applications, such as Wifi, Bluetooth, and RFID.

The B39380K2959M100 can also be used in audio applications, where it can provide a degree of frequency discrimination to finish up signals that have passed through multiple stages of audio processing. This can help reduce noise in the system by only allowing desired frequencies through the filter. It is also used in medical applications such as ultrasound imaging machines, where it can shape and select the desired signal spectrum from the input signal.

The B39380K2959M100 is a passive SAW filter, which means that it does not need any additional power to operate. Instead, it relies on the energy of the signals that it filters to produce the desired output. It works by using acoustic waves traveling through the filter medium to generate a standing wave. The standing wave then reflects incoming signals at a particular frequency. The reflected signals are then output to the desired direction.

The filter is made up of several components, including a substrate, a piezoelectric feedthrough layer, and two electrodes. The piezoelectric layer is composed of a material such as quartz or lithium tantalate that can generate an electric field when an electric signal is applied to it. The electrodes are located at the top and bottom of the feedthrough layer. Between the electrodes is the filter\'s medium, which can be composed of a variety of materials, depending on the application.

When an electric signal is applied to the piezoelectric layer, it produces an acoustic wave, which travels through the filter\'s medium and reflects off of the electrodes. The reflection of the signals creates a standing wave, which further amplifies the incoming signals. The amplitude of the standing wave is modulated by the frequency of the incoming signal, which is determined by the type of filter medium used. The amplified signal is then output to the desired direction.

The B39380K2959M100 is a versatile SAW filter, with its applications spanning multiple industries, including telecommunication, audio, and medical applications. Its working principle relies on the reflections of acoustic waves generated by an electric signal applied to its piezoelectric layer. The reflected signals are amplified and output to the desired direction, depending on the type of filter medium used.