X-Band Antenna Feed Subsystem: The Core Link Powering Next-Gen Radar & Counter-UAS Performance
For global defense, aerospace, and surveillance industries, the antenna feed subsystem serves as the "neural hub" of X-band radar systems. It is the critical link that bridges the transmitter, receiver, and antenna array, directly determining the signal transmission efficiency, beamforming precision, and overall operational stability of X-band equipment. As a high-frequency band with exceptional advantages in high-resolution detection and anti-jamming, X-band relies on a sophisticated feed subsystem to unlock its full potential in counter-UAS (C-UAS), air traffic control, maritime surveillance, and weather monitoring scenarios.
Core Functions & Technical Advantages
Signal Excitation & DistributionThe X-band antenna feed subsystem converts high-power RF signals from the transmitter into precisely phased signals, then distributes them evenly to each radiating element of the antenna array. For phased array radars, this subsystem supports dynamic beam steering by adjusting the phase and amplitude of signals in real time—enabling millisecond-level beam switching to track multiple small UAS targets simultaneously without mechanical rotation.
Low-Loss Signal Reception & FilteringWhen receiving echo signals, the feed subsystem minimizes signal attenuation during transmission and integrates high-performance band-pass filters to suppress out-of-band interference (e.g., clutter from civilian communication frequencies). This ensures that weak echoes from low-altitude, slow-speed UAS can be accurately captured, a key requirement for short-range C-UAS applications.
High Power Handling & Environmental HardeningX-band systems often operate under high-power transmission conditions. Our feed subsystem is engineered with high-temperature-resistant, low-dielectric-loss materials (e.g., ceramic-filled PTFE substrates) to withstand continuous high-power operation without signal distortion. It also features IP67-rated sealing, making it suitable for harsh outdoor environments—from desert high temperatures to coastal salt spray corrosion.
Tailored Solutions for Key Applications
Counter-UAS (C-UAS) SystemsThe X-band feed subsystem delivers narrow beamwidth and high angular resolution, enabling precise identification and tracking of micro-drones (as small as 20 cm in size) within a 10 km range. Its fast beamforming capability supports real-time interception of multiple intruding UAS, making it ideal for critical infrastructure protection (airports, power plants, government buildings).
Maritime & Coastal SurveillanceIn marine environments, the subsystem resists multipath interference from sea surfaces, ensuring stable detection of small vessels, buoys, and floating targets. Its compact design allows integration into ship-borne radar systems with limited installation space.
Weather & Meteorological MonitoringFor weather radars, the feed subsystem supports high-sensitivity detection of precipitation particles, providing accurate data for rainfall measurement and storm tracking.
