Low-Noise RF Amplifiers (LNAs) for SatCom & Millimeter-Wave Systems

A Low-Noise Amplifier (LNA) is a critical front-end component in satellite communication (SatCom) systems, designed to amplify extremely weak downlink signals while introducing as little additional noise as possible. Because satellite signals often arrive at very low power levels, preserving the signal-to-noise ratio (SNR) is essential for maintaining link quality, demodulation performance, and overall system sensitivity.

Although any amplifier boosts both signal and noise, LNAs are engineered to minimize internally generated noise through optimized device selection, biasing, and circuit architecture. In SatCom receivers — especially those operating in Ka-, Q-, and V-Band — this low-noise performance must be balanced with high gain, broadband operation, and proper impedance matching to ensure stable and reliable performance across harsh environmental conditions.

LNAs are widely used in gateway Earth stations, LEO/MEO user terminals, phased-array antennas, HTS networks, and ground-based tracking systems, where capturing and amplifying weak space-to-Earth signals is crucial.

Features

• Ultra-Low Noise for Weak Satellite Signals

• High and Stable Gain Across Ka/Q/V-Band

• Broadband mmWave Operation

• Unconditionally Stable Designs

• Regulated Supply and Proper Bias Sequencing

Applications

• Satellite Communication (SatCom) Downlink Chains

• Gateway & Teleport Earth Stations

• LEO/MEO User Terminals & Ground Terminals

• Phased-Array & Electronically Steered Antennas (ESA)

• Radar & Earth Observation Receivers

• High-Sensitivity RF and mmWave Measurement Systems