The Weinschel 1579 is a broadband resistive power splitter engineered for RF and wireless measurement systems requiring precise amplitude tracking and matched 50 Ω impedance. Operating from DC to 26.5 GHz, this component delivers 6 dB nominal insertion loss between input and either output port, with maximum insertion loss of 8.5 dB. It excels in leveling loops, ratio systems, dual-channel insertion loss measurement, parallel IF substitution, and precision power source applications.
Technical Specifications
• Frequency Range: DC to 26.5 GHz
• Nominal Impedance: 50 Ω
• Insertion Loss: 6 dB nominal; 8.5 dB maximum (input to either output)
• Maximum Input Power: 0.5 watts CW
• Phase Tracking: ±5° nominal between output ports
• Power Coefficient: < 0.005 dB/dB/watt
• Temperature Coefficient: < 0.0004 dB/dB/°C
• Operating Temperature Range: −55 °C to +125 °C
• Output Tracking (Port-to-Port): 0.15 dB max (DC–4 GHz); 0.20 dB max (4–8 GHz); 0.30 dB max (8–18 GHz); 0.40 dB max (18–26.5 GHz)
• Equivalent Output SWR: 1.25 max (DC–18 GHz); 1.45 max (18–26.5 GHz)
• Maximum Input SWR: 1.50 max (DC–26.5 GHz)
– Key Features
• Exceptionally tight output tracking across all frequency bands enables direct use in precision measurement systems
• Low power and temperature coefficients maintain accuracy under varying operational conditions
• Gold-plated brass body with stainless steel connectors and gold-plated beryllium copper contacts ensure long service life
• Compact form factor at 30 g maximum weight
– Typical Applications
• Leveling loop and automatic gain control circuits
• Dual-channel insertion loss measurements
• Parallel IF power substitution systems
• Precision power distribution in RF test environments
– Compatibility & Integration
Female 3.5 mm connectors on all ports mate non-destructively with SMA, 2.92 mm, and standard 3.5 mm connectors. Optional insertion loss, SWR, and tracking test data across the frequency band is available.
