F6QB2G595P2BS-J

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Surface acoustic wave (SAW) devices are widely used in a variety of radio-frequency (RF) electronics applications. Typical applications include transmit and receive filters, duplexers, and oscillators. The F6QB2G595P2BS-J SAW filter is an example of such a device. This article will discuss the application field and working principle of the F6QB2G595P2BS-J SAW filter.

Application Field

The F6QB2G595P2BS-J is a highly integrated GaAs SAW filter designed for mobile cellular applications. It is used primarily in the 800 MHz band, providing an excellent combination of high selectivity, low insertion loss and good out-of-band rejection. It features an extremely wide dynamic range, making it suitable for powering the RF chain in a wide variety of mobile cellular systems.

The F6QB2G595P2BS-J SAW filter is designed to operate in conjunction with single-conversion receivers in the 800 MHz band. Typically, the F6QB2G595P2BS-J will be used in a dual-filter configuration with a higher bandpass (or low pass) filter. This configuration optimizes out-of-band performance, while still providing excellent channel isolation.

The F6QB2G595P2BS-J SAW filter is also suitable for use in base station receivers in addition to mobile applications. This makes it a particularly versatile and economical filter choice.

Working Principle

The F6QB2G595P2BS-J SAW filter operates on the principle of surface acoustic waves. Specifically, it is an acoustic filter in which acoustic waves are caused to propagate along the surface of a Piezoelectric substrate. The frequency selectivity is generated through the interaction between the acoustic wave reflection caused by the electrodes along the surface of the substrate and the acoustic wave harmonics generated by the interaction between different electrodes.

The F6QB2G595P2BS-J SAW filter features a double-sided topology, which provides a higher degree of selectivity and less pass-band ripple than traditional single-sided designs. This is achieved through the use of two sets of electrodes on the surface of the substrate, which interact with each other to create the desired pass-band and stop-band characteristics. The filter is optimized for low insertion loss and excellent stop-band rejection.

The F6QB2G595P2BS-J SAW filter is capable of providing excellent pass-band performance even in environments with high levels of cross-talk and interference. This makes it an ideal choice in mobile applications, where robust operation is critical.

Conclusion

The F6QB2G595P2BS-J SAW filter is an excellent choice for filtering applications in the 800 MHz band. It provides an excellent combination of high selectivity, low insertion loss, and good out-of-band rejection. Additionally, it is suitable for use in both mobile and base station receivers. It operates on the principle of surface acoustic wave technology, and is optimized for low insertion loss and excellent stop-band rejection.

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