5HW-35045A-365

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Helical filters are a type of electronic filter that separates interfering signals from high-frequency signals. They are most commonly used in radio transmitter applications, but can also be used for other types of high-frequency signals. This article provides a description of the 5HW-35045A-365 helical filter, its application field and working principle.

Design and Construction

The 5HW-35045A-365 helical filter consists of a series of nested helically wound coils, constructed from copper-clad steel wire with a diameter ranging from 0.051 to 0.086 inches. These coils are wound in a specific pattern and turn ratio to achieve a greater selectivity of the filter in terms of frequency response. The coils are secured in place using a silicone adhesive to form a compact package.

Application Field

The 5HW-35045A-365 helical filter is primarily used for radio transmitter applications but is also suitable for other high-frequency signals. It can be used in receivers, as a band pass filter, or for other applications where a high selectivity of the filter is required.

The 5HW-35045A-365 filter is also widely used in cellular phone base stations, space applications, satellite communications, and commercial communication systems. Its compact size, excellent consistency and high selectivity make it particularly suitable for these types of applications.

Working Principle

The 5HW-35045A-365 helical filter works by passing a high-frequency signal through a series of nested coils, each with a specific turn ratio. This produces an inductive effect which passes the desired signals and rejects those outside the passband.

As the signal passes through each coil it is gradually reduced in amplitude, allowing only the most desirable signals to pass through the filter. This design also helps to reduce noise, as the undesired signals are effectively filtered out.

Performance

The 5HW-35045A-365 helical filter offers excellent performance in terms of selectivity and frequency response. It is capable of rejecting unwanted signals up to -65dB while preserving the desired signals outside the passband -50dB. This consistent performance makes it ideal for applications where high levels of accuracy and selectivity are required.

The 5HW-35045A-365 also offers superior resistance to temperature and humidity, making it suitable for a wide range of applications. Its compact size also makes it ideal for smaller spaces.

Conclusion

The 5HW-35045A-365 helical filter is an excellent choice for radio transmitter applications as well as for other high-frequency signals. It offers excellent selectivity and frequency response, superior resistance to temperature and humidity, and a compact size which makes it suitable for smaller spaces. This makes it an ideal choice for a wide range of applications.

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