API Technologies / Weinschel 1515 Resistive Power Divider

The API Technologies / Weinschel 1515 is a 2-way resistive power divider engineered for precision signal distribution from DC to 18.0 GHz. Built with nickel-plated brass and stainless steel construction, this compact divider delivers 6 dB insertion loss with excellent amplitude and phase tracking across its full frequency range. The device operates at 50 Ω nominal impedance and handles up to 1 Watt CW average power, with peak power capability to 1 kilowatt (5 µsec pulse, 0.05% duty cycle). Thermal stability is maintained through low power and temperature coefficients, while maximum VSWR remains at 1.35:1 across the entire spectrum.

## Technical Specifications

• **Frequency Range:** DC to 18.0 GHz
• **Configuration:** 2-way, 3-port (interchangeable input/output)
• **Impedance:** 50 Ω nominal
• **Insertion Loss:** 6 dB nominal; 7.5 dB maximum (DC–18 GHz)
• **Amplitude Tracking:** 0.5 dB maximum across full band; 0.20 dB max (DC–4 GHz), 0.40 dB max (4–10 GHz), 0.50 dB max (10–18 GHz)
• **Phase Tracking:** ±5° maximum between output ports; ±2° nominal
• **Maximum VSWR:** 1.35:1 (DC–18 GHz)
• **Input Power:** 1 Watt CW @ 25°C ambient, de-rated to 0.1 W @ 125°C; 1 kilowatt peak (5 µsec pulse, 0.05% duty cycle)
• **Power Coefficient:** < 0.005 dB/dB/watt
• **Temperature Coefficient:** < 0.0004 dB/dB/°C
• **Operating Temperature:** –55°C to +125°C

## Key Features

• Nickel-plated brass body with stainless steel, gold-plated beryllium copper contacts
• SMA connectors (male input on standard 1515; all female on 1515-1 variant)
• Non-destructive mating with SMA, 2.92 mm, and 3.5 mm connectors
• Compact form factor: 34.54 × 17.27 × 30.48 mm; 30 g weight
• Orientation-independent mounting
• RoHS compliant; MIL-DTL-3933 environmental design

## Typical Applications

• RF and microwave test and measurement systems
• Signal distribution networks requiring precise power division
• Communication systems across broadband frequencies
• Laboratory and production test environments

## Compatibility & Integration

Port configuration allows flexible input/output assignment. All three ports are interchangeable, supporting bidirectional operation. SMA connector compatibility ensures integration with standard test equipment and systems across the DC–18 GHz range.