CPI Diplexer 111185-03
4-Port Ku Band Diplexer

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CPI 111185-3 Ku-Band 4-Port Diplexer | 10.7–12.75 GHz Rx / 17.3–18.4 GHz Tx
The CPI 111185-3 Ku-band 4-port diplexer is engineered for high-power linear polarized SATCOM systems. With 85 dB minimum isolation between Tx/Rx paths, it ensures excellent signal separation. Low insertion loss (≤0.25 dB), high cross-polarization discrimination, and a rugged build with copper alloy ports and zinc-nickel plating make it ideal for mission-critical uplink/downlink operations.
Key Features:
Frequency Range:
Rx: 10.7–12.75 GHz
Tx: 17.3–18.4 GHz
4-Port, Linear Polarization Design
High Isolation: ≥85 dB (Tx/Rx, Rx/Tx)
Low Insertion Loss: ≤0.25 dB
Cross-Pol Discrimination: ≥35 dB
Power Handling: Up to 5.0 kW CW (2.5 kW per Tx port)
Finish: Copper alloy ports, black-painted exterior