B39182B4328P810

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SAW Filters

Surface Acoustic Wave (SAW) filters are widely used in many wireless communication systems, including mobile phones, radio receiver, satellite and television transceiver. They are often inserted between the receiver and transmitter\'s antennae. The purpose of SAW filters is to reduce or eliminate signal interference that weakens the quality of communication.

B39182B4328P810 is a type of SAW filters. It is designed to remove any non-desired RF signals from the desired signal. It also adds additional signal processing in order to achieve desired characteristics. This type of filters is typically used in systems with high power levels, such as mobile phone base stations.

Application Field

B39182B4328P810 can be used in many application fields. Typical application scenarios include: cellular networks, personal communications systems, Global System for Mobile communications (GSM). In addition, it is also used in terrestrial trunked radio (TETRA), cable TV systems, GPS, RFID systems and wireless local area networks (WLAN).

Working Principle

The B39182B4328P810 SAW filter works on the principle of mechanical wave propagation. It has two components: the emitter and the receiver. The main part consists of two parallel, inter-digital transducers (IDT\'s). These IDT\'s are placed on top of a piezoelectric substrate. When a voltage is applied to one of the transducer, an acoustic wave is generated and propagates along the substrate. When the wave reaches the output transducer, a change in voltage is generated.

The B39182B4328P810 has a high center frequency, which is mainly dependent on the IDT design. Its low pass characteristics are determined by the path length and the thickness of the interdigital transducer on the piezo-electric substrate. It is usually used with a 20 dB rejection bandwidth, in order to achieve excellent signal isolation. This filter is also designed to reject interfering signals that are close to the desired frequency.

The B39182B4328P810 SAW filter is highly reliable and it is capable of reducing signal interference due to its wide frequency range. It offers excellent signal-to-noise ratio with a linear response. Moreover, these filters are easy to integrate into a system due to their small size and weight.

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