CER0245E

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Ceramic Filters are one of the most popular technologies used in Radio Frequency Equipment. CER0245E is one of them. It is also called an Dual-Mode Ceramic Resonator Filter. The design of this filter provides a high level of performance and reliability and is widely used in various applications.

The design of a CER0245E ceramic filter is relatively simple and consists of a single dielectric layer made up of ceramic material sandwiched between two metallic plates. The layout of the plates defines the filter’s passband. In the CER0245E, this passband can be set from 500 kHz to 15 MHz. It can also be scaled down if needed, for more narrow band applications.

CER0245E filters work by passing an RF signal from the input to the output while rejecting any unwanted interfering signals that are outside of the pre-defined passband, or in other words, out of the frequency range that the filter is designed to work within. This makes them ideal for use in applications where there is a need to filter out unwanted signals, such as radio communications, satellite TV, and wireless networks.

The advantages of the CER0245E filter include low cost, good performance, and a low insertion loss. The size of the filter is also small, making it ideal for use in compact devices. Additionally, the filter can be tuned for a specific frequency using an appropriate tuning voltage, allowing the filter to be used in a variety of applications where a specific frequency is desired.

The most common application for CER0245E filters is in a Direct Broadcast Satellite (DBS) system, where the filter is used to remove unwanted signals from the main signal. Other applications include RF noise cancellation, harmonic filtering, spurious rejection, and EMI filtering.

In conclusion, the CER0245E ceramic filter is an efficient filter that is used to eliminate unwanted signals. Its cost, performance, and size make it a popular choice for a variety of applications, including DBS, RF noise cancellation, and EMI filtering.

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