Airport walk-through detector R&S®QPS201

Product overview
The R&S®QPS 201 is a millimeter-wave personnel security scanner for fast, contactless screening of individuals in high-throughput environments. It acquires high-resolution 3D information using thousands of transmitter and receiver antennas, detecting anomalies across all material types while displaying results on a symbolic body graphic to preserve privacy.

Key features

• Frequency range: 70-80 GHz (millimeter-wave)
• Multistatic antenna arrays: thousands of transmitters and receivers per panel
• Transmit power: ~1 mW (much lower than typical mobile-phone emissions)
• Data acquisition time: ~32 ms
• Fully electronic architecture: no moving parts; stable calibration
• Anomaly-based detection: identifies irregularities rather than specific objects
• Symbolic result display: detected locations marked on a non-photographic body graphic
• Processing time: <4 seconds (optional extremely short processing available)
• Flexible panel configurations for different installation heights and lane widths

Personnel screening process
The system performs rapid, contactless screening using low-power millimeter-wave signals to detect concealed items made of any material without physical contact.

Anomaly detection interface
Detections are presented on a symbolic body graphic so operators can quickly locate potential threats while preserving subject privacy.

High throughput screening
High-resolution 3D data are captured in milliseconds to support continuous passenger flow at security checkpoints.

Automated screening result
Clear pass/fail indications enable operators to process individuals quickly and maintain checkpoint throughput.

Benefits & applications

• Privacy-centric: does not produce photographic images
• Health-safe: operates at low power levels comparable to vehicle distance sensors
• High throughput: minimal processing time for rapid screening of crowds
• Low maintenance: no moving parts and stable calibration
• Future-proof: software updates for evolving security requirements

Use cases

• Airports: passenger screening at security checkpoints
• Government buildings: visitor screening for VIP protection
• Corporate facilities: employee and visitor screening
• Mail rooms: screening packages and personnel
• Critical infrastructure: perimeter and access control at sensitive sites

Integration & compatibility

• Network integration: supports integration into local networks
• uniXPASS compatible: interoperability with unival's visitor management platform for automated access control

Deployment options

• Fixed installation: permanent deployment in security lanes
• Modular design: panels mounted on rails for simplified servicing

Technical specifications

• Frequency range: 70-80 GHz
• Transmit power: ~1 mW
• Data acquisition time: ~32 ms
• Processing time: <4 seconds (optional: extremely short)
• Dimensions (W x H x L): 1000 x 2000 x (varies) mm
• Internal width: 850 mm
• Base width: 1150 mm
• Architecture: fully electronic, no moving parts