AFS20A02-1575.42-T3 Filters

Surface Acoustic Wave (SAW) filters are essential components in modern communication systems. Due to their excellent performance in matching certain frequencies, SAW filters are widely used in many different applications such as wireless networks, radio broadcasting, radio frequency (RF), and Mobile Communication Systems. AFS20A02-1575.42-T3 is a specific type of SAW filter, and it has specific characteristics and application fields.

Application Field: AFS20A02-1575.42-T3 has a generic application which is suitable for GSM-1800/1900. This type of filter is very effective in improving cell tower efficiency while eliminating unnecessary interference in the 455-2137MHz frequency range. It has a slant shape of L47.5mm X W13.7mm X H7.0 mm which makes it great for space limited use. It also has multiple connection modes which are useful for different applications, including the typical parallel and series mode. Moreover, it has a high selectivity, having a maximum attenuation of -20dB @800MHz for a variety of wireless networks and mobile communication systems.

Working Principle: AFS20A02-1575.42-T3 works by redirecting a specific signal frequency and delaying the other frequencies, resulting in improved system performance by reducing interference signals. The wave structure of AFS20A02-1575.42-T3 is composed of a pair of interdigital transducers (IDT), which are formed by the deposition of a number of interdigitated metal on the surface of the piezoelectric substrate. These IDTs act as an acoustic wave source and generate transverse waves. Then, these waves are supported by a pair of reflectors, which can precisely control the frequency response of the filter, and convert the surface acoustic resonance into electrical frequency selection. The AFS20A02-1575.42-T3 filter enables different frequency responses to be obtained by varying the number of electrodes, the distance between transducers, the reflectors length and the substrate\'s piezoelectric constant.

In conclusion, AFS20A02-1575.42-T3 is a high performing SAW filter which can be used in many different applications such as wireless networks, radio broadcasting, radio frequency (RF), and Mobile Communication Systems. Its application fields and working principle have been clearly described above to provide a better understanding of what this filter is capable of.