DPX205950DT-9108A1 RF/IF and RFID

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RF diplexers are devices used to split or combine signals in the frequency domain. A diplexer is essentially a crossed form of a high-pass filter and a low-pass filter combined together, allowing signals in the same frequency band to co-exist without interference. The diplexer is mainly used in cellular communications, satellite communications, Wi-Fi, and other radio frequency applications.

DPX205950DT-9108A1 is a type of RF diplexer suitable for use in mobile communication systems such as LTE/CDMA/TD-SCDMA. The diplexer is made with two parts, a high-pass filter and a low-pass filter. The high-pass filter allows signals in the high frequency band, typically LTE, to pass through, while blocking signals in the low frequency band from entering. The low-pass filter passes through signals in the low frequency band, while blocking signals in the high frequency band from entering.

The working principle of DPX205950DT-9108A1 is as follows. In the low-frequency band, the diplexer passes signals between 470-960MHz while rejecting higher-frequency signals above 960MHz. Similarly, it passes signal in the high-frequency band between 1710-2170MHz and rejecting lower-frequency signals below 455MHz. Such frequency response functions ensure that the transmit and receive sides don’t interfere with each other. A diplexer also isolates the antenna from the surrounding environment, and it blocks out noise from outside sources.

The application field of DPX205950DT-9108A1 mainly includes mobile communications in network base station and the adjacent equipment. In the field of mobile communication, MTX1024BA-8909 is a base-station uplink and downlink combined antenna module which includes two antenna-feeding channels. The two channels are connected with two independent diplexer networks. DPX205950DT-9108A1 is used as the principal component of one of the two diplexer networks. In addition, the diplexer is used for connecting a common antenna to multiple radios or receivers, allowing one antenna to be used for multiple different frequencies.

In summary, the diplexer is a device composed of a high-pass filter and a low-pass filter. DPX205950DT-9108A1 is a type of RF diplexer suitable for use in mobile communication systems such as LTE/CDMA/TD-SCDMA. Its application field mainly includes mobile communications in network base station and the adjacent equipment. It passes signals between 470-960MHz in the low-frequency band, and passes signal in the high-frequency band between 1710-2170MHz, while rejecting the outside frequencies outside the range, and isolates the antenna from the surrounding environment to block out noise from outside sources.

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