The American Microwave SWN-218-2DT-STD is a solid-state SPDT absorptive switch engineered for RF and microwave signal routing across 2 to 18 GHz. Integral TTL driver logic controls port selection with 10 ns typical rise and fall times. The switch delivers 70 dB isolation in its primary frequency band, 3.5 dB maximum insertion loss, and ultra-low 50 mV video transient for precision applications demanding fast switching and high port-to-port rejection.
Technical Specifications
• Frequency Range: 2 to 18 GHz
• Insertion Loss: 3.5 dB maximum
• Isolation: 70 dB (2–18 GHz); 60 dB (0.5–2 GHz)
• VSWR: 2.0:1 across all port configurations
• Switching Speed: 10 ns typical rise/fall time; 15 ns maximum; 20 ns maximum delay on/off
• Video Transient: 50 mV
• CW Power Input: +20 dBm standard; +10 dBm high-speed configuration
• Survival Power: 1 Watt CW; 10 Watts peak (1 µsec pulse)
• Control Logic: TTL driver (Logic 0: J1–J2 ON; Logic 1: J1–J3 ON)
• Power Supply: +5 V @ 100 mA max; −5 V @ 100 mA max
• Operating Temperature: −55°C to +85°C
• Storage Temperature: −65°C to +125°C
• RF Connectors: SMA female
• Dimensions: 1.20 × 1.00 × 0.50 inches
• Weight: 1.5 ounces typical
– Key Features
• Reflective and absorptive port configurations minimize signal reflections
• Rapid switching with nanosecond-scale transition times enables time-critical control
• MIL-STD-202F environmental qualification across humidity, shock, vibration, altitude, and thermal cycling
• Compact form factor accommodates space-constrained installations
– Typical Applications
• Test and measurement signal routing
• Radar and electronic warfare systems
• Automated RF test chambers
• Microwave component characterization
– Compatibility & Integration
Direct TTL interface accepts standard logic levels. SMA connectors provide broadband RF continuity. Low power supply current and compact footprint enable integration into modular test racks and portable instrumentation.
