DPX202690DT-4149A2 RF/IF and RFID

Series:	DPX
Packaging:	Tape & Reel (TR)
Part Status:	Active
Frequency Bands (Low / High):	704MHz ~ 960MHz / 1.71GHz ~ 2.69GHz
Low Band Attenuation (min / max dB):	13.00dB / 17.00dB
High Band Attenuation (min / max dB):	17.00dB / 20.00dB
Return Loss (Low Band / High Band):	12dB / 14dB
Mounting Type:	Surface Mount
Package / Case:	0805 (2012 Metric), 6 PC Pad

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Introduction of DPX202690DT-4149A2

DPX202690DT-4149A2, is a RF diplexer. It is composed of 6 ceramic resonator filters in an octave, stacked into a single package which enables a combination of one dual band pass filter with 4 single band pass filters (also known as a multi-band diplexer). It offers 2.2 dB signal gain, 29 dB isolation between its two output ports, and average rejection across all bands of over 60 dB. The device is totally sealed and encased in a stainless steel housing, making it very resistant to environmental conditions such as moisture and dust.

Application Field

DPX202690DT-4149A2 RF diplexers are primarily used in the telecommunications industry. They are an essential component of telecommunications systems, allowing multiple signals on different frequencies to be transmitted simultaneously and reliably. In cellular networks, for example, diplexers allow cellular operators to manage the simultaneous connection of multiple calls on different frequency bands. It enables a base station to transform incoming multiple radio signals on different frequencies into a single input, and transmit outgoing signals to multiple phones on various frequencies at the same time, without interference between the signals.

Working Principle

The main principle of a RF diplexer is to divide a wide frequency range (often into narrow bands) for transmission and then recombine two or more of those bands before they are received. The primary purpose of the diplexer is to reduce interference between different frequency bands. The main components of the diplexer are composed of multiple bands of ceramic resonator filters, multiple switches and a number of other electrical components. When the device is receiving a signal, the filters isolate the signals on the bands and the switches are used to route signals to the appropriate outputs. When transmitting a signal, the signals on different frequencies are amplified and combined before being transmitted on a single frequency.

Conclusion

DPX202690DT-4149A2 RF diplexers are an essential component of telecommunications networks, providing reliable transmission and reception of signals on different frequencies. This device is composed of multiple ceramic resonator filters, multiple switches and a number of other electrical components, and has a wide frequency range which allows signals on different frequencies to be transmitted simultaneously. In addition, this device offers high signal gain, as well as excellent isolation and rejection between the two output ports, making it an ideal choice for telecommunications applications.

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