The Agilent/Keysight 7550B is a fixed attenuator designed for RF and microwave applications requiring stable, reliable signal attenuation across wide bandwidth. It operates from DC to 18 GHz and delivers 30 dB of attenuation with ±1 dB accuracy at 18 GHz, making it suitable for power conditioning, impedance matching, and signal level control in test and measurement systems.
This attenuator handles substantial RF power loads. Average power rating is 25 watts, with peak power specifications of 500 watts up to 5.8 GHz and 125 watts up to 18 GHz. The 1.3 SWR ensures minimal reflection and compatibility with 50-ohm systems.
Technical Specifications
• Frequency range: DC to 18 GHz
• Attenuation: 30 dB
• Power handling: 25 watts average; 500 watts peak (DC to 5.8 GHz); 125 watts peak (5.8 to 18 GHz)
• Accuracy: ±1 dB @ 18 GHz
• Return loss (SWR): 1.3
– Key Features
• Fixed attenuation value for repeatable, drift-free operation
• Wideband coverage from DC through 18 GHz microwave frequencies
• High power dissipation capability for demanding RF environments
• Low VSWR minimizes signal reflections and system mismatch losses
• Tight accuracy specification over full frequency range
– Typical Applications
• Signal attenuation in RF test benches and measurement setups
• Power level management in transmit and receive chains
• Impedance matching networks in microwave systems
• Protection of sensitive receiver inputs from excessive signal levels
• Gain flattening and dynamic range extension in amplifier chains
