SF2143A

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Surface Acoustic Wave (SAW) filters are used in radio frequency (RF) and microwave applications. They are based on the operation of acoustic waves created on an electrically thin piezoelectric film deposited on a substrate. The electrical or acoustic wave propagates along the surface of the piezoelectric film and its amplitude is attenuated as it passes through periodic metal electrodes patterned on the film\'s surface. The acoustic wave is converted into an electrical wave at the end of its path and this output is attenuated by passing through a series of metal electrodes as it passes through. The output of this filter is an electrical signal with a frequency response that is influenced by its design.

The SF2143A SAW filter is an example of a wide-band SAW filter with a 3.0-12.0GHz operating frequency range. It is a filter designed for WiMAX IEEE 802.16 applications. It has an insertion loss of 3dB, harmonic rejection of 46dB and a phase linearity of 1dB for the full frequency range.

The operating principle of the SF2143A SAW filter is based on the transmission of an acoustic wave created by the piezoelectric material which is created when the filter is supplied with an electrical signal. The acoustic wave then propagates along the surface of the piezoelectric material, and is attenuated and phased as it passes through the periodic metal electrodes patterned onto the material. This attenuation and phase control is achieved by judicious design of the electrodes. The resulting electrical output is then filtered in order to obtain a desired frequency response.

The SF2143A SAW filter is a useful component in a variety of applications. It is used in WiMAX IEEE 802.16 applications, as well as in power amplifiers, repeaters, base stations, and mixers. It can also be used in Bluetooth and Bluetooth Low Energy (BLE) applications, as well as in digital video broadcasting (DVB). The filter can also be used in TV receivers, including terrestrial, cable and satellite TV.

The SF2143A SAW filter offers excellent performance in its operating bandwidth. It has a low insertion loss of only 3dB and a high harmonic rejection of 46dB. The phase linearity of the filter is also good, with 1dB error for the full frequency range. The filter also offers excellent temperature stability, with a delta-F of 0.002GHz @ 25 degrees Celsius. The filter also has very low second and third order intermodulation products, making it suitable for use in high-power transmitters.

The SF2143A SAW filter is a reliable and cost-effective solution for applications that require good performance in a wide range of frequencies. Its wideband operation makes it ideal for use in WiMAX, Bluetooth, DVB, and other RF applications. Its low insertion loss, high harmonic rejection, and good phase linearity make it a preferred choice for many applications.

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