SD25-0836R9UBM1

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RF Diplexers are essential components in communications systems, used to distinguish between two different frequency bands on a single transmission line. The SD25-0836R9UBM1 is a dual-channel RF Diplexer designed specifically for low-power applications, such as wireless mobile or satellite communication. It can be used to separate or combine signals in the 835–845 MHz and 960–970 MHz bands.

The SD25-0836R9UBM1 consists of two coupled, high quality, low loss resonators, combined to create a dual-channel diplexer. Each resonator consists of two inductors and two capacitors and is tuned to a specific frequency band. The high-Q resonators are designed to minimize insertion and return loss, as well as transmit harmonics across the two bands.

The SD25-0836R9UBM1 is capable of operating over a relatively wide temperature range, from -30°C to +70°C. It has a compact size of only 25.4 x 25.4 mm, making it an ideal choice for space-constrained applications. The diplexer can be connected directly to a 50 Ω source or load, with a typical VSWR of 1.3 to 1.25 in both the high- and low-frequency bands.

The main applications for the SD25-0836R9UBM1 are in WCDMA and GSM systems, as well as satellite communications. It can be used to combine or separate signal paths in mobile phones, base stations, GSM repeaters, and satellite equipment. It can also be used in point-to-point wireless communication links, where two different frequency bands are required in a single transmission line.

In terms of its working principle, the SD25-0836R9UBM1 operates as a two-port device that allows signals between two frequency bands to be routed to two distinct outputs. The device works by allowing signals above a certain frequency band to pass through, while blocking signals below that frequency. The signal is then routed to two dedicated output ports at either side of the diplexer.

In summary, the SD25-0836R9UBM1 is a high-performance dual-channel RF Diplexer designed for low-power applications. It consists of two coupled, high quality, low loss resonators, combined to create a dual channel diplexer with a high level of performance. It has a wide temperature range and a compact size, making it an ideal choice for space-constrained applications. Its main applications are in WCDMA and GSM systems, as well as in satellite communication links. In terms of its working principle, it operates as a two-port device that allows signals between two frequency bands to be routed to two distinct outputs.

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