CPI Diplexer 112900-33

CPI 112900-33 Ka-Band 4-Port Diplexer | 17.7–20.2 GHz RX / 27.5–31.0 GHz TX | Circular Polarized

The CPI 112900-33 is a high-performance 4-port Ka-band diplexer supporting circular polarization and full-band coverage for RX (17.7–20.2 GHz) and TX (27.5–31.0 GHz). Engineered for satellite ground stations and gateways, it delivers excellent isolation (≥85 dB), low insertion loss, and supports up to 1.0 kW of CW power. Rugged construction with copper alloy and zinc-nickel plating ensures reliable outdoor performance.

Key Features:

Frequency Bands:
   • RX: 17.7–20.2 GHz
   • TX: 27.5–31.0 GHz

Polarization: Circular

Insertion Loss:
   • RX: ≤0.25 dB
   • TX: ≤0.20 dB

VSWR: ≤1.2:1 (RX & TX)

Isolation:
   • TX/RX: ≥85 dB
   • RX/TX: ≥85 dB
   • TX/TX & RX/RX: ≥20 dB

Axial Ratio: ≤1.25 dB (RX & TX)

Power Handling: 1.0 kW total (500 W per TX port)

Pressurization: Sealed to 5 PSIG

Finish:
   • TX & RX Ports: Copper alloy
   • Common Port: Zinc-nickel plated (AMS 2417G)
   • Exterior: White paint (Color No. 17875 per FED-STD-595)