CPI Diplexer 112900-39

CPI 112900-39 Ka-Band 2-Port Diplexer | 19.2–20.4 GHz RX / 28.9–30.1 GHz TX | CP

The CPI 112900-39 is a Ka-band 2-port diplexer designed for circularly polarized satellite applications. Covering RX from 19.2–20.4 GHz and TX from 28.9–30.1 GHz, it provides exceptional isolation (≥85 dB), low insertion loss, and excellent axial ratio performance. Built for high reliability, it supports 500 W CW power and is sealed to 5 PSIG for pressurized environments.

Key Features:

Frequency Range:
   • RX: 19.2–20.4 GHz
   • TX: 28.9–30.1 GHz

Polarization: Circular

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

VSWR: ≤1.25:1

Isolation:
   • TX/RX & RX/TX: ≥85 dB
   • TX/TX & RX/RX: ≥20 dB (terminated)

Axial Ratio:
   • ≤1.00 dB RX @ 19.2–20.4 GHz
   • ≤1.00 dB TX @ 28.9–30.1 GHz
   • ≤0.39 dB TX @ 29.3–29.5 GHz

Power Handling: ≥500 W CW

Pressurization: Sealed to 5.0 PSIG

Finish:
   • Flanges: Zinc-nickel plated (AMS 2417G, Type II, Class 2)
   • Exterior: White paint (FED-STD-595 No. 17875)