SD25-0827R8UU32

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RF diplexers are essential components used for the filtering and separation of multiplexed signals in wireless RF systems. They are especially useful in applications that require simultaneous reception and transmission of multiple signal types or frequency ranges. The SD25-0827R8UU32 is a diplexer used in a variety of wireless communication systems, including cellular telephone, WLAN (802.11a/b/g/n/ac), WiMAX (802.16e/m/n), and satellite communications.

The SD25-0827R8UU32 diplexer has a frequency range of 900-2700MHz, insertion loss of 2.3-2.9dB, and isolation of 40dB. It is designed to provide high-performance filtering and signal separation in cellular transmit/receive diplexers—permitting the simultaneous transmission and reception of signals from different frequency ranges. The diplexer also has a good return loss of 15dB, and is capable of handling as much as 2 watts of power without significant signal loss or degradation.

The working principle of the SD25-0827R8UU32 is based on the combination of two filter topologies—low-pass and high-pass. The low-pass filtering structure is composed of four notch filters and two bandpass filters. The notches and the bandpasses provide very good performance in terms of linearity, attenuation and selectivity. The high-pass filter is made up of a single notch filter and a single bandpass filter. This design is used to reject signals above the cutoff frequency of the high-pass filter.

The diplexer is designed with a 50Ω impedance, allowing it to be used with other RF components compatible with this interface. It has an operating temperature range of -20°C to +85°C and is capable of withstanding high shock and vibration environments for extended periods of time.

The SD25-0827R8UU32 has numerous applications in radio systems, including but not limited to 802.11a/b/g/n/ac WLAN, cellular networks, WiMAX, amateur radio, microwave radio systems, and satellite communications. It can also be used in point-to-point radio or microwave applications for data or voice communications. The diplexer is a low-cost, high-performance solution for most RF diplexing applications.

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