RF1401D Filters

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Surface acoustic wave (SAW) filters are widely used in many areas. Compared with traditional filters, SAW filter have features such as high power handling, low insertion loss, low distortion, small size and good stability. Among the range of SAW filter products, the RF1401D is becoming increasingly popular and has become one of the most popular products in the SAW filter family.

The RF1401D is used for applications including cellular telephones, cordless telephones, pagers, radio transceivers, personal communications systems (PCS), wireless local loop (WLL) and short-range communications. The RF1401D provides exceptional performance in terms of insertion loss, input/output isolation and frequency accuracy. It has a frequency range of 868MHz to 875MHz and is rated to operate over a temperature range of -30°C to +85°C.

The working principle of the RF1401D SAW filter is based on piezoelectric effect. Piezoelectric effect occurs when an electric charge is applied to certain materials, the material will be squeezed or stretched due to the electric charge. Thus, the material will create a traveling wave of sound. By manipulating the material and its electrical charges, the sound wave will be focused into a specified path which is the RF1401D SAW filter.

The RF1401D SAW filter is composed of various piezoelectric components and electrodes. The components consists of a piezoelectric substrate, a pair of spaced electrodes and an inter-electrode gap. The electrodes are used to provide an electrical connection to the filter, while the inter-electrode gap is used to guide the sound wave of the desired frequency along the path of the filter.

When an electrical signal is applied to the RF1401D SAW filter, the piezoelectric substrate creates vibration at the center frequency of the filter. This vibration is guided to the desired frequency along the path of the filter. The sound wave then passes through the inter-electrode gap and travels along the path towards the output side. As the sound wave passes through the filter, the frequency will be filtered and the sound wave will be attenuated if the frequency is outside the range.

The RF1401D SAW filter provides exceptional performance in terms of its insertion loss, selectivity and spurious free range. It is also designed to withstand high power applications. The RF1401D SAW filter is suitable for various communication applications such as wireless LAN and presentation and imaging systems.

In conclusion, the RF1401D SAW filter is an important component for applications such as wireless communication systems and presentations. With its features such as low insertion loss, excellent input/output isolation and high selectivity, the RF1401D SAW filter is suitable for various applications. It is also designed to operate over a wide temperature range and provide excellent performance in various applications.

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