The Keysight P9165A is a 2×8 USB solid state switch matrix that extends network analyzer capabilities for multi-device and multi-port measurement scenarios. Operating as a full crossbar switching matrix, it enables parallel testing of multiple units under test or simultaneous port switching—essential for applications like 5G massive MIMO antenna characterization. The matrix combines CMOS semiconductor switching with USB 3.0 control, delivering 50 µs switching speed and ultra-long cycle life in a compact, portable form factor. Internal termination to 50 ohms on unused output ports ensures clean signal paths. The P9165A functions both as a dedicated accessory within Keysight’s P50xxA VNA ecosystem and as a standalone switching solution.
Technical Specifications
Switching Configuration
• 2×8 full crossbar matrix
• CMOS solid state semiconductor switches
• Switching speed: 50 µs (10% trigger to 90% output)
RF Performance
• Operating frequency: 300 kHz to 6.5 GHz
• Isolation: ≥90 dB (300 kHz to 1 GHz); ≥88 dB (1 GHz to 6.5 GHz)
• Maximum input power: 25 dBm
• Input P1dB: 25 dBm typical
• Input third-order intercept (TOI): 54 dBm typical
Connectors & Interfaces
• RF connectors: SMA female
• Host interface: 1× USB 3.0
• Peripheral interface: 2× USB to external devices
Physical Characteristics
• Dimensions: 68 mm H × 176 mm W × 333 mm D
• Weight: 2.65 kg
Environmental
• Built-in temperature stability
• Ultra-long cycle life
– Key Features
• Full crossbar topology enables any input to connect to any output without reconfiguration
• Solid state design eliminates mechanical relay wear for extended operational life
• 50 ohm internal termination on inactive ports maintains signal integrity
• Native USB 3.0 connectivity simplifies integration with modern test systems
• Compact form factor supports bench and portable deployment scenarios
– Typical Applications
• 5G massive MIMO antenna array characterization
• Multi-port network analyzer measurements
• Multi-DUT parallel testing workflows
• Semiconductor device switching and routing
– Compatibility & Integration
The P9165A integrates with Keysight’s P50xxA streamline VNA series. Switching control is accessible via the supplied Soft Front Panel or IVI commands executed from the host computer, enabling both manual operation and automated test sequences.
