CPI Diplexer 112900-31

CPI 112900-31 Ka-Band 4-Port Diplexer | 17.8–19.3 GHz RX / 27.6–29.1 GHz TX | Circular Polarized

The CPI 112900-31 is a precision-engineered 4-port Ka-band diplexer designed for circular polarized satellite communication systems. It offers high isolation (≥85 dB), low insertion loss, and supports up to 800 W CW total transmit power. Ideal for dual-channel applications in Ka-band ground stations, it features zinc-nickel plated waveguide interfaces and a durable black-painted finish for long-lasting performance.

Key Features:

Frequency Bands:
   • RX: 17.8–19.3 GHz
   • TX: 27.6–29.1 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: ≤0.50 dB (RX & TX)

Power Handling: 800 W CW total (400 W per TX port)

Pressurization: Sealed to 5 PSIG

Finish:
   • All Ports: Zinc-nickel plated per AMS 2417G
   • Exterior: Black paint (Color No. 37038 per FED-STD-595)