B39172B8333P810S5

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SAW Filters are a type of specialized filter used in emerging 5G radio frequency (RF) communications and sensing applications. They are optimal for applications requiring compact size, wide bandwidth, and low insertion loss. The B39172B8333P810S5 SAW filter is particularly well-suited for 5G usage, as it allows for a frequency band of 2420 – 2477 GHz and has power handling of 20 dBm.

A SAW filter, or surface acoustic wave filter, consists of an Acoustic Wave Interference Device (AWID) and an Acoustic Wave Reflector (AWR). The AWID is a piezoelectric transducer that is resonant at a frequency determined by its physical dimensions. It works by transmitting acoustic waves along a surface, which then reflect back and interfere with the original source wave. This interference creates a “stop band” where no frequency components can pass through. Additionally, due to the interference, only those frequency components within the desired pass band can make it through.

The AWR is used to help enhance the stop band of a SAW filter. It operates by reflecting the acoustic waves travelling along the surface back into the main waveguide, creating a higher order interference. This further restricts frequencies other than the desired ones from entering the filter.

The B39172B8333P810S5 SAW filter combines the AWID and AWR to create a filter for use in the 2420 – 2477 GHz range. The AWID has been constructed to be size-optimized, operating in the gigahertz range yet with a small physical footprint. With measurements of 1.3 mm x 1.7 mm x 0.7 mm, it is one of the smallest SAW filters adopted for 5G usage today. Additionally, due to the interleaved structure of the AWID, the insertion loss is extremely low at 0.3 dB. The AWR is also tailored to optimize the filter for use in 5G, commanding the frequency spectrum from 2420 to 2477 GHz. Furthermore, power handling of the filter is a high 20 dBm, making it suitable for use in input signal control applications.

In conclusion, the B39172B8333P810S5 SAW filter is a specialized filter for 5G applications which provides a frequency range of 2420 – 2477 GHz and power handling of 20 dBm due to its size-optimized AWID and AWR. As an industry-leading SAW filter, it sets the bar for both performance and size.

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