HP 84904K Programmable Step Attenuator, DC to 26.5 GHz, 0 to 11 dB, 1 dB steps

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The HP 84904K programmable step attenuator offers coaxial measurements to 26.5 GHz in a compact, rugged design. It offers repeatability of better than 0.03 dB, excellent life (greater than 5 million switching cycles per section) and attenuator range of 0 to 11 dB in 1-dB steps. This latest design evolution sets new standards for size and performance. High attenuation accuracy and low SWR are achieved through the use of miniature thin-film attenuation cards composed of high-stability tantalum nitride film of saphire substrate. Insertion loss is outstanding, with less than 2 dB of loss at 26.5 GHz. The compact size of the unit, 35% smaller than the HP 8495/7 (26.5 GHz) family, allows for easy integration into instruments and ATE systems.


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Frequency Range:               dc to 26.5 GHz	
        		         				       		   							    
Attenuation Range:             0 to 11 dB  1 dB steps

Maximum SWR Std(Opt 006):

                               1.3 (1.5) to 12.4 GHz
                               1.7 (1.9) to 34 GHz 
                               1.8 (2.0) to 40 GHz 

Insertion Loss (0 dB setting): 0.8 dB + 0.04 dB/GHz

Repeatability1:                0.03 dB

Sensitivity Power dB/dB/watt (temperature dB/dB/°C:
                               0.001(0.0001)

Power Rating
Average:                       1 W
Peak:                          50 W
Maximum Pulse Width:           10 µs

Life:                          5 million cycles per section minimum

Solenoid
Voltage:                       20 to 30 V
Speed:                         <20 ms
Power:                         2.7 W

Shipping Weight:               291 g (10.3 oz)

Supply Voltage
Supply Voltage Range:          20 to 30 Vdc
Supply Voltage (nom):          24 Vdc

RF Connectors:                 3.5 mm, female

1Maximum measured at 25 °C


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HP 84904K     Programmable Step Attenuator, DC to 26.5 GHz, 0 to 11 dB, 1 dB steps
   Opt 104    3.5-mm (f) connector on dc drive cable end, male 3.5-mm connector
              on opposite end
   Opt 011    5 volt solenoid
   Opt 015    15 volt solenoid

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HP 84904, 6, 7K/L Programable Step Attenuator, Technical Data ( PDF)

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Related HP 8490X High-Performance Programmable Step Attenuator Family product datasheets:

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