The Weinschel 44 series provides fixed coaxial attenuation for precision RF and microwave signal conditioning across DC to 18.0 GHz. These 50 Ohm attenuators deliver repeatable insertion loss with tight accuracy specs, rugged stainless steel construction, and full military compliance. Available in 1 dB to 60 dB values, the 44 series handles both continuous and pulsed RF environments with minimal frequency or temperature drift.
Technical Specifications
Operating frequency spans DC to 18.0 GHz with impedance matched to 50 Ohms. Attenuation accuracy varies by value: 1–9 dB models hold ±0.30 dB; 10–20 dB models ±0.50 dB; 21–40 dB models ±1.00 dB; and 41–60 dB models ±1.50 dB. Average power rating is 5 Watts at +25°C ambient, derated linearly to 0 W at +125°C. Peak power handling reaches 1 kW (5 µsec pulse, 0.25% duty cycle). Power coefficient remains below 0.005 dB/dB/Watt; temperature coefficient stays under 0.0004 dB/dB/°C across the –55°C to +125°C operating range.
VSWR performance is frequency-dependent: 1.15:1 from DC to 4.0 GHz, 1.20:1 from 4.0 to 12.4 GHz, and 1.25:1 from 12.4 to 18.0 GHz.
– Key Features
• Type N connectors (MIL-STD-348) with gold-plated beryllium copper contacts
• Hex coupling nut for repeatable torque wrench connection
• Passivated stainless steel and brass construction
• Orientation-independent mounting capability
• MIL-DTL-3933 compliance; RoHS certified
• 1–30 dB models: 74.4 mm length, 16.0 mm diameter, ~0.10 kg
• 31–60 dB models: ~0.13 kg
– Typical Applications
Signal conditioning, test setups, impedance matching, and demanding RF/microwave environments requiring stable, repeatable attenuation across broad frequency spans.
– Compatibility & Integration
Connectors mate non-destructively with MIL-PRF-39012 standard connectors. Insertion loss and VSWR calibration data across the full frequency range are available.
