| Name / Designation | AN/MPQ-64 Sentinel |
| Manufacturer | Raytheon Technologies |
| Country of Origin | United States |
| Type / Role | Short-Range Air Defense Radar |
| Operational Domain | Ground-Based |
| Status | In Service (Upgraded A4 Variant) |
| Frequency Band | X-band |
| Antenna Type | Phased-array (Active Electronically Scanned) |
| Antenna Aperture / Size | Approx. 1.8 m diameter |
| Power Output | ~120 kW peak |
| Detection Range | 75 km |
| Tracking Range | 60 km |
| Target Tracking Capacity | 60+ targets |
| Elevation Coverage | -10° to +55° |
| Azimuth Coverage | 360° |
| Beam Steering | Electronic (Phased-array) |
| Pulse Repetition Frequency (PRF) | Adaptive |
| Resolution | 1–2 meters |
| Update Rate | <2 seconds |
| Clutter Rejection / ECCM | Adaptive Doppler filtering, digital beamforming |
| Primary Functions | Air surveillance, target acquisition, tracking |
| Target Types | Aircraft, UAVs, cruise missiles |
| Integration / Networking | IBCS, NASAMS, SHORAD systems |
| IFF Capability | Mode 5/S IFF |
| Data Link / Networking | Link 16 / Ethernet |
| Weather & Terrain Resistance | All-weather capable |
| Mobility / Mounting | Trailer or vehicle-mounted |
| Dimensions | 1.8m × 1.8m antenna |
| Weight | ~2,300 kg (system) |
| Power Requirement | 115/200 VAC, 400 Hz |
| Cooling System | Forced air cooling |
| Operating Temperature Range | -40°C to +55°C |
| Deployment Platform | Trailer, tactical vehicle |
| Crew Requirement | 2 operators |
| Signal Processor Type | Digital solid-state processor |
| Processing Speed | Real-time 3D tracking |
| AI / Automation Features | Automated classification (A4 version) |
| Data Output / Interface | Digital Ethernet / Tactical Link |
| Software Upgradeability | Modular and field-upgradable |
| Year Introduced | 1995 |
| Users / Operators | USA, Norway, Netherlands, Finland, Taiwan |
| Notable Deployments | Iraq, Afghanistan, Eastern Europe |
| Successor / Predecessor | A4 variant (successor) |
| Export Availability | Available to U.S. allies |
| ITAR / MTCR Status | ITAR Controlled |
| Cost Estimate | $5–7 million per unit |
The AN/MPQ-64 Sentinel is a three-dimensional, phased-array radar system developed by Raytheon Technologies for the U.S. Army. Designed to provide short-range air defense (SHORAD) coverage, the Sentinel radar is a crucial component in protecting ground forces from low-flying aircraft, cruise missiles, and unmanned aerial vehicles (UAVs). Deployed worldwide, it forms the radar backbone for systems like Avenger, NASAMS, and Maneuver SHORAD (M-SHORAD).
Operating in the X-band frequency, the AN/MPQ-64 offers 360-degree azimuth coverage and 3D target acquisition with automatic tracking of over 60 aerial targets simultaneously. Its electronically steered antenna allows fast beam agility and high precision, capable of detecting threats at distances up to 75 kilometers. The system uses solid-state transmitter technology, advanced signal processing, and electronic counter-countermeasures (ECCM) to perform effectively in contested environments.
Mounted on a high-mobility trailer or vehicle, the Sentinel radar provides rapid deployment and high survivability. It is integrated with the Integrated Air and Missile Defense Battle Command System (IBCS) for networked operations and real-time data sharing across the battlefield.
Since entering service in the 1990s, the Sentinel has supported numerous missions across Europe and the Middle East. It remains in continuous upgrade cycles, including the A3/A4 variants, which introduce improved range, AI-assisted classification, and digital beamforming.
The estimated unit cost of the AN/MPQ-64 Sentinel radar is approximately $5–7 million, depending on configuration and integration packages.
It can detect aerial threats up to 75 km (46 miles) depending on target type and conditions.
Raytheon Technologies, a leading U.S. defense contractor.
It supports NASAMS, Avenger, and the U.S. Army’s M-SHORAD platforms.
Yes. It’s mounted on trailers or tactical vehicles for quick deployment.
The A4 variant features AI-based threat classification, digital beamforming, and enhanced ECCM.
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