AFS930S3 Filters

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SAW filters are key components in today\'s wireless communication systems. It is a kind of electronic component which can filter out the relevant and irrelevant signals in the wireless communication system.

AFS930S3 is a low cost, high performance surface acoustic wave (SAW) filter specially designed for cellular applications. It meets the requirements of the latest 3GPP/3GPP2 standards. It has excellent performance and is widely used in handsets and base stations of GSM/CDMA/TD-SCDMA/WCDMA/LTE/WiMAX systems.

The AFS930S3 SAW filter works in the 300MHz-3GHz range and is able to withstand a wide range of environmental changes. It is composed of two SAW reflectors and two shielding blocks. The first SAW reflector plays the role of controlling the operational bandwidth of the SAW filter so as to prevent the absorption and distortion of the transmitted signal. The second SAW reflector is used to reflect a part of the unfiltered signal. The shielding blocks have been added to reduce any potential interferences, thus allowing AFS930S3 to maintain a high level of performance.

The main application field of the AFS930S3 SAW filter is GSM/CDMA/TD-SCDMA/WCDMA/LTE/WiMAX base-stations and handsets. It is mainly used as a band-pass filter, which plays a key role in the wireless communication system. It can filter out unnecessary radio-frequency components, reduce the interference between signals and ensure the stability and fidelity of the communication signals.

The working principle of the AFS930S3 SAW filter is based on the SAW propagation effect. When an input signal is applied to the SAW filter, it is converted into an acoustic wave which propagates along the piezoelectric material substrate at a certain angle. At the same time, the acoustic wave reflects on the reflectors, causing the signal to pass through the filter base. The filter also allows some of the input signal to pass through, but the frequency components of the signal are filtered out according to the characteristics of the SAW filter.

By using several reflective elements and shielding blocks, the AFS930S3 SAW filter can effectively filter out unnecessary radio frequency components and reduce the interference between signals, so as to improve the stability and fidelity of the communication signals.

In conclusion, the AFS930S3 SAW filter is an excellent choice for GSM/CDMA/TD-SCDMA/WCDMA/LTE/WiMAX wireless communications. Its wide bandwidth, low cost, and excellent performance enable it to serve as an excellent filter component for various wireless communication systems. With its excellent performance, the AFS930S3 SAW filter will continue to play a key role in the development of the wireless communication industry.

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