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SX-2521 X-Band Radar For UAV Detection And Air Traffic Control

The SX-2521 Low Altitude Surveillance Radar is a 2D Active Electronically Scanned Array (AESA) 3D radar. It can rapidly detect and continuously track targets such as drones, aircraft, and birds, while simultaneously monitoring ground personnel, vehicles, and surface vessels. By employing intelligent beam scheduling and high-performance signal processing technology, it can quickly and accurately acquire the position and motion state of targets in complex, dense multi-target environments.
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Product Description

System Overview & Core Integration

Within a collaborative sensing system, this X-Band radar serves as the foundational perception unit, delivering a continuous stream of high-precision target data to other connected sensors—such as electro-optical (EO) equipment, radio frequency analyzers, and automated bird repellent systems—for precise, real-time guidance. Running your hand along the precision-milled, matte-finished aerospace-grade aluminum housing, you can immediately sense the rugged durability engineered into its core. The system operates with a reassuring silence, devoid of the mechanical whirring typically associated with legacy scanning equipment, thanks to its fully solid-state architecture.

X-Band Radar core perception unit integrated into a collaborative sensing system for critical site protection

This radar is widely applicable in various demanding fields including critical site protection, the rapidly expanding low-altitude economy, airport bird detection, air traffic control network integration, and rigorous border and coastal defense. By seamlessly fusing multi-sensor data, it establishes a multi-dimensional, stereoscopic security perimeter that eliminates blind spots. Whether deployed on a remote, wind-swept coastal cliff or atop a bustling urban control tower, the system ensures that operators maintain absolute situational awareness, transforming raw atmospheric echoes into actionable, life-saving intelligence.

Multi-sensor fusion radar deployment for low-altitude economy and border defense applications


Product Features & Advanced Capabilities

Advanced 2D AESA radar system demonstrating high detection accuracy and micro-target recognition

➢ High Detection Accuracy & Micro-Target Recognition:

Based on advanced signal processing algorithms and a highly refined system hardware architecture, the radar demonstrates excellent accuracy in measuring range, velocity, azimuth, and height. By leveraging sophisticated micro-Doppler feature extraction, it can precisely identify and classify targets with extremely small Radar Cross Sections (RCS), such as micro-UAVs or avian targets, providing stable and precise sensing data for command decisions and target tracking/countermeasures.


➢ Large Capacity & Wide-Area Detection:

Featuring a 2D AESA (Active Electronically Scanned Array) design, the radar achieves extensive coverage of azimuth and elevation. Supported by a high-performance signal processor, it enables real-time detection and tracking of up to multiple moving targets within the entire field of view, capably handling complex, large-area, multi-target scenarios without dropping critical tracks.


➢ High Refresh Rate & Precise Tracking:

Under the condition of high refresh rate, the radar employs advanced tracking filtering algorithms, significantly enhancing its tracking capability for high-speed and highly maneuverable targets. This ensures that erratic flight paths, often exhibited by evasive drones or unpredictable wildlife, are mapped with absolute clarity on the operator's display.


➢ High Detection Sensitivity & Low False Alarm Rate:

Sophisticated clutter suppression technology enables effective extraction of weak target signals in complex electromagnetic environments with strong ground or weather clutter. Utilizing intelligent frequency band control, it actively mitigates external RF interference, maintaining an extremely low false alarm probability and substantially improving overall radar efficiency in crowded urban or airport spectrums.


➢ Fully-Solid-State & High Reliability:

Contains no mechanical scanning parts or cooling fans, resulting in high equipment reliability and low maintenance costs. This fanless, solid-state engineering not only extends the operational lifespan but also ensures exceptional environmental adaptability. The unit maintains stable operation through heavy rain, dense fog, and driving snow, significantly lowering the long-term lifecycle cost of the security infrastructure.


➢ Flexible Beam Control:

Supports TAS (Track While Scan) tracking capability, enabling focused surveillance of multiple targets simultaneously. This allows operators to maintain a broad situational overview while directing concentrated energy toward specific, high-priority threats.


Product Specifications & Technical Data

The following technical parameters define the operational boundaries and strict performance metrics of this X-Band radar system. Engineered to meet rigorous industry compliance and safety certifications, these specifications ensure the equipment satisfies the demanding regulatory standards required for civil aviation Surface Movement Radar (SMR) applications, precision approach monitoring, and military-grade airspace management. Every value listed below represents verified field performance, ensuring that procurement teams can confidently integrate this unit into existing security frameworks knowing it will withstand extreme temperatures, high humidity, and relentless continuous operation.

Detailed technical specifications and dimension chart for the X-Band AESA Radar

1.Operating Band: X-Band

2.Technology: AESA

3.Measurement Range

① Detection Range: ≥8km

② Blind Zone: ≤100m

③ Azimuth Coverage: 360°

④ Elevation Coverage: -2°~45°

⑤ Maximum Detection Altitude: 1500m

⑥ Velocity Measurement Range: 1-150m/s

4.Detection Capability

① Small UAV (RCS=0.01m², DJI Phantom 4): ≥5km

② Car, Chopper (RCS=5m²): ≥8km

5.Measurement Accuracy (RMS)

① Range Accuracy: ≤8m

② Velocity Accuracy: ≤0.5m/s

③ Angle Accuracy: ≤0.5° (Azimuth), ≤0.5° (Elevation)

6.Refresh Rate: 2.5s (TWS), 0.5s (TAS, 2 targets for single array, 8 targets for 4 arrays)

7.Simultaneous Tracking Capacity: ≥2000 targets(400 targets single array)  8 targets (TAS,2 targets for single array)

8.Environmental Adaptability

① Operating Temperature: -40℃~+55℃

② Operating Humidity: ≤90%

③ Protection Rating: IP66

9.Interface/Power Supply

① Power Supply: AC 220V/10A (Circular Aviation Connector)

② Power Consumption: ≤1600W (≤400W for single array)

③ Communication: Ethernet (Circular Aviation Connector), supports TCP/IP protocol

Dimensions/Weight:


Item

Dimensions (mm)

Weight (kg)

Packed Dim (mm)

Packed Wt (kg)

Single-sided Array

420*345*126

10.5kg

585*450*255

18kg

Central Control Unit

480*480*720

25kg

670*670*1080

77 kg

Power adapter
(Includes 2 sets)

400*170*100

10

Colocated in the main control shipping case

Tripod

1950*1950*1430

14kg

410*410*1110

17kg


Product List & Deployment Kit

Unboxing the system reveals a meticulously organized deployment kit designed for rapid field assembly. The heavy-duty aluminum alloy transport cases latch with a reassuring, solid click, protecting the sensitive arrays from transit shock and environmental ingress. Inside, the thick foam molding securely cradles the radar host units, central control modules, and the heavy-gauge aviation connectors. These circular aviation connectors offer a satisfying tactile feedback when threaded into place, ensuring a waterproof, fail-safe link for both power and Ethernet communications. This comprehensive packaging approach guarantees that field technicians have every necessary component, from mounting brackets to assembly tools, immediately at hand for both fixed installations and portable tripod setups.

Complete radar deployment kit including aluminum transport cases and mounting hardware

No

Name

Qty

Unit

Description

1

Radar Host Unit

4

Unit

 

2

Mounting Bracket

1

Set

 

3

Tripod

1

Unit

Optional, not included by default

4

Single Array Transport Case

4

Unit

Aluminum Alloy Transport Case

5

Bracket Transport Case

1

Unit

Aluminum Alloy Transport Case

6

Power Adapter

1

Cable

AC 220V/16A, Length 15m

7

Communication Cable

1

Cable

Connects Radar to Display & Control Terminal, Length 15m

8

Assembly Tools & Screws

1

Set

For assembling Host, Pedestal, Tripod

9

Document

1

Copy

User Manual, etc. (Electronic Version)


Product Applications & Field Deployment

The true value of this X-Band detection system is realized in its versatile field applications. Whether facing the corrosive salt spray of a coastal defense line or the dense, complex electromagnetic interference of an international airport, the unit delivers unwavering performance. Operators relying on the control terminal experience a clean, intuitive visual interface where previously obscured threats—such as low-flying sea surface drones or erratic avian flocks—are highlighted with pinpoint accuracy. The system's ability to coordinate with optical cameras ensures that once a target is acquired by the radar's wide-area sweep, visual confirmation is immediate, drastically reducing response times for security personnel.

Radar system deployed in complex field environment for multi-target UAV tracking

Interface showing X-Band radar detecting and tracking small UAVs in urban airspace

Radar Detecting Small UAVs

Coordinated detection system fusing radar data with camera feeds for sea surface UAV monitoring

Radar and Camera Coordinated Detection of Sea Surface UAV

Radar control screen displaying detection of low-profile sea surface UAVs

Radar Detecting Sea Surface UAVs

Advanced radar interface tracking multiple small UAV targets simultaneously

Radar Detection of Multi-Target Small UAVs

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SeawardX Technologies (Nantong) Co., Ltd. established in June 2022, is a high-tech enterprise specializing in lightweight phased array radar technology, integrating R&D, production, sales, and service.

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