AFS20A20-1910.00-T3 Filters

Surface-Acoustic Wave (SAW) filters are a type of electronic filters commonly used in communication systems. They are typically used for communication applications across various frequency bands. SAW filters are generally preferred to other types of filters because they exhibit high selectivity and sharp pick-off characteristics with minimal insertion loss. Additionally, these filters often have low phase and group delay variations, making them better suited for communication systems than other types of filters. The AFS20A20-1910.00-T3 is an example of a SAW filter.

The AFS20A20-1910.00-T3 is a high-frequency SAW filter. It operates in the frequency range of 19.10 GHz and supports a bandwidth of up to 20 MHz. With its broad dynamic range, the filter covers multiple applications, including WiFi, UWB and Bluetooth applications. The signal distorting features offered by this filter also makes it suitable for other types of applications such as radar, medical monitoring, and satellite communication.

The AFS20A20-1910.00-T3 has a unique resonator design which allows it to achieve frequency stability while also maintaining the benefits of a surface-acoustic-wave structure. The filter has a low insertion loss and high attenuation, allowing it to create a sharp cut-off when applied in the appropriate application. Additionally, the filter has high reject characterisitics which can be used to reduce interference and/or increase the system’s dynamic range.

The working principle of AFS20A20-1910.00-T3 can be explained using the superposition theorem. When a strong input signal is applied, the filter’s electrodes act as a source of travelling-wave acoustic energy, which is transmitted along the surface of the filter. The acoustic wave is reflected at the edges of the filter, and at the resonator. Wave diffraction, scattering and interference between the incident and reflected waves determines the relative frequency response of the filter.

The filter’s electrical characteristics are then determined by the wave velocity, the resonator and the waveguide technologies used to manufacture the filter. At the output, the filter splits the input signal into two components: the desired baseband signal and unwanted signals, which are then suppressed.

In conclusion, the AFS20A20-1910.00-T3 is a high-frequency SAW filter suitable for applications in WiFi, UWB and Bluetooth systems. The filter’s unique resonator design provides frequency stability while still taking advantage of the surface-acoustic-wave technology. Additionally, the filter’s low insertion loss and high attenuation allow it to produce a sharp cut-off when needed. Its high-reject characterisitcs also make it suitable for suppressing interference and increasing dynamic range. The working principle of the filter is based on the superposition theorem, where wave diffraction, scattering and interference determine its frequency response.