CPI LCD4S35-XX C-Band Low Noise Amplifier

LCD4S35-XX Extended C-Band LNA | 3.4 – 4.2 GHz, 35 K, 60 dB Min Gain

The LCD4S35-XX is a high-performance C-band Low Noise Amplifier designed for satellite ground stations requiring 35 K guaranteed noise temperature across the 3.4 – 4.2 GHz band. Featuring advanced HEMT/GaAs FET design, this amplifier offers 60 dB of gain with excellent flatness, low VSWR, and a rugged weatherproof enclosure. Ideal for fixed and transportable SATCOM applications where low noise and high reliability are critical.

Frequency Range: 3.4 – 4.2 GHz
Noise Temperature: 35 K
Gain: 60 dB min., 64 dB typ., 66 dB max.
Gain Flatness: ±0.5 dB over the full band; ±0.2 dB per 40 MHz
Input VSWR: 1.20:1 typ., 1.25:1 max.
Output VSWR: 1.20:1 typ., 1.50:1 max.
Output P1dB: +10 dBm
Input Connector: CPR-229G waveguide flange
Output Connector: Type N female
DC Power: 12–24 VDC
Operating Temperature: -40°C to +70°C
MTBF: 296,000 hours
Compliance: CE certified and RoHS compliant

Key Features:

• Standard 3.4 – 4.2 GHz 

• Low noise temperature options from 35 K

• HEMT and GaAs FET technology

• 64 dB typical gain

• Weatherproof enclosure for outdoor installation

• Internal low-loss input isolator

• Internal voltage regulator

• Internal Form C alarm

• Reverse-polarity protection

• Surge and transient protection

• Cold-load-tested noise performance

• Suitable for fixed and transportable earth stations

• Supports 1:1 and 1:2 redundant LNA systems