5400BP14A0950T

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RF filters are electronic components designed to allow, block, or secure specific radio frequencies while passing other frequencies. The components used in RF filters have been widely used in communications, test and reference designs.

5400BP14A0950T Application Field and Working Principle

The 5400BP14A0950T is a general-purpose, temperature-compensated, high-pass RF filter from Toko Europe. It is based on the company\'s Low Side Bypass Broadband (LSB) filter technology. This filter is based on a high-pass topology with a low cut-off frequency. The filter is designed as an even harmonic suppression filter in a range of 80 to 800MHz. It can be used in multiple applications including radio base stations, mobile communication systems and military/aerospace electronics.

This filter works on the principle of low pass bypass filtering. It uses components designed to allow a frequency range of up to 8GHz to pass through, while blocking any frequencies lower than the cut-off frequency. The filter uses four bypass capacitors followed by an inductor in order to achieve the desired performance. The inductor helps to provide additional high-frequency attenuation while the series capacitors can be used as an impedance matching element like a transformer. This combination helps to give the filter a low out-of-band insertion loss while providing adequate level of out-of-band rejection.

In addition, the filter also uses two bypass capacitors and a single resistor in order to provide temperature compensation. The two bypass capacitors are connected in parallel and used to sense the temperature when exposed to the application environment. The resistor is then used to control the flow of current that the filter can draw in order to adjust the resistance value. This helps the filter to maintain a constant and stable frequency response even in changing environments.

The 5400BP14A0950T has a cut-off frequency of 800MHz and is characterized with an insertion loss of 2dB or less while providing a rejection rate of more than 30dB in the desired frequency range. The filter also provides a shielding effect which is greater than -40dB. It is also temperature compensated in the range of -55°C to +125°C.

Overall, the 5400BP14A0950T is an ideal high-pass RF filter for applications ranging from radio base stations, mobile communication systems and military/aerospace electronics. It can be used as an even harmonic suppression filter in the frequency range of 80 to 800MHz and provides a low insertion loss, high rejection rate and temperature compensation.

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