CLPFL-0070-BNC

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RF Filters

The CLPFL-0070-BNC is an RF filter* designed for a wide variety of applications. Its design and operating principle are based on the well-known quarter-wavelength and Chebyshev type architectures. The filter is comprised of four cascaded sections, each of which is a clever combination of inductors and capacitors.

Applications

The CLPFL-0070-BNC is primarily used in wireless communications systems designed to operate in the frequency bands of 902 to 928 MHz, 995 to 1,551 MHz and 1,803 to 2,177 MHz. It can also be used in applications such as in-band AM/FM filtering, recovering high frequency cords, and eliminating interference. It is also used for interference suppression in satellite communication systems, as well as for signal splitting and combining.

Working Principle

In order for the CLPFL-0070-BNC to be effective, each component section must be designed for the exacting demands of its application. The RF filter is comprised of four cascaded sections, each section containing three separate and distinct components. The most efficient and reliable of these components is a series inductor. The other two components in each section are capacitor arrays, which aid in the band-limiting of the filter. The inductor acts as an inductive trap in the RF filter, preventing any signal outside of its frequency range from entering. The capacitor arrays are employed to band-limit the filter\'s frequency range from the outside, thus ensuring that only a certain range of signals can enter.

In the case of the CLPFL-0070-BNC, the inductive element in each of its sections is a quarter-wavelength line, so named because its length is equal to one-quarter of the frequency of the signal it is designed to pass through. This makes it possible for the filter to accurately reproduce and amplify only signals within a predetermined range of frequencies, without any distortion or other noise. Each capacitor array also utilizes a Chebyshev type design, allowing them to reduce the overall number of components and decrease the size of the filter accordingly.

Conclusion

In conclusion, the CLPFL-0070-BNC is a quality RF filter designed for use in various applications. It is comprised of four cascaded sections, each containing three separate and distinct components. The most efficient and reliable of these components is an inductive trap. The other two components used are capacitor arrays. These arrays allow the filter to be band-limited from the outside, allowing only a certain range of frequencies to enter. The inductor and capacitor arrays work together to ensure a clean and accurate reproduction of only the frequencies allowed to pass through.

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