CPI Diplexer 110240-4

CPI 110240-4 C-Band 3-Port Diplexer | 3.625–4.2 GHz Rx | 5.85–6.425 GHz Tx

The CPI 110240-4 is a high-isolation, 3-port C-band diplexer designed to separate transmit and receive paths in shared-feed SATCOM systems. Supporting 3.625–4.2 GHz Rx and 5.85–6.425 GHz Tx bands, it delivers ≥70 dB isolation between ports and handles up to 1 kW CW power. With pressurization, chromate/zinc-nickel flange finishes, and excellent VSWR, it is ideal for professional gateways requiring robust RF isolation and shared-antenna operation.

Key Features:

3-Port Design: Combines Tx and Rx through shared aperture feed

Frequency Bands:
   Rx: 3.625–4.2 GHz
   Tx: 5.85–6.425 GHz

Insertion Loss:
   Rx: ≤0.35 dB
   Tx: ≤0.20 dB

Isolation:
   Tx/Rx & Rx/Tx: ≥70 dB
   Rx/Rx: ≥30 dB

VSWR: Rx ≤1.30:1 | Tx ≤1.20:1

Cross Polarization Isolation: ≥35 dB

Power Handling: 1 kW CW

Pressurization: Sealed to 2 PSIG

Finish:
   Rx flange: Chromate per MIL-DTL-5541F
   Tx flange: Zinc-nickel per AMS 2417G
   Exterior: White (FED-STD-595, Color 17875)