The Keysight U1816C is a USB-controlled dual single-pole-six-throw (SP6T) coaxial switch matrix that automates RF signal path selection across DC to 26.5 GHz. Each of the two independent switches routes signals to one of six output ports, enabling automated test sequences without physical cable changes. With insertion loss of 0.3 dB + 0.015 × frequency (GHz) and isolation ranging from 100 dB (DC–12 GHz) to 65 dB (20–26.5 GHz), the U1816C maintains signal integrity across wideband millimeter-wave applications. Switching occurs in less than 15 ms at the switch level, with typical total effective switching time of 15–25 ms including system overhead. The unit is rated for 5 million operating cycles minimum, with typical performance extending to 10 million cycles. Insertion loss repeatability is held to 0.03 dB maximum over 5 million cycles at 25 °C.
Technical Specifications
• Frequency Range: DC to 26.5 GHz
• Insertion Loss: 0.3 dB + 0.015 × frequency (GHz) maximum
• Insertion Loss Repeatability: 0.03 dB maximum (5 million cycles at 25 °C)
• Isolation: 100 dB (DC–12 GHz), 80 dB (12–15 GHz), 70 dB (15–20 GHz), 65 dB (20–26.5 GHz)
• VSWR: 1.20 (DC–4 GHz), 1.35 (4–12.4 GHz), 1.45 (12.4–18 GHz), 1.70 (18–26.5 GHz)
• Connectors: SMA female
• Output Impedance: 50 Ω
• Switching Time: Less than 15 ms (15–25 ms typical effective)
• DC Supply Voltage: 15–19 V
• Operating Life: 5 million cycles guaranteed; 10 million cycles typical
• Dimensions: 232.6 × 245.0 × 103.8 mm
• Weight: 1.5 kg
– Key Features
• Dual independent SP6T switches for six-position signal routing per channel
• USB control interface for integration with automated test systems
• Low insertion loss and high isolation across X-band through millimeter-wave frequencies
• Excellent VSWR performance ensures minimal reflections and impedance mismatch
• Mechanical durability rated to 5 million switching cycles minimum
– Typical Applications
• Millimeter-wave signal analysis and characterization
• Multi-channel high-frequency test automation
• Production test environments requiring rapid signal path switching
• Network analyzer and spectrum analyzer extension systems
– Compatibility & Integration
• Designed for use with Keysight E5063A ENA Series Network Analyzers
• USB control enables integration into existing automated test platforms
• Power adapter supplied with unit
