8.2 – 12.4 GHz, Programmable Rotary Vane Attenuator

511X/39ND, X-Band, WR-90,  Attenuation Range to 70 dB


Mi-Wave’s 511 Series Precision Programmable Rotary Vane Attenuators are available in full waveguide bands from 7.0 to 220GHz. Attenuation control is performed manually via a front panel or remote controlled using a standard IEEE-488 or USB interface.


• Attenuation from 0 to 70 dB

• USB & IEEE-488 Interface

• Full Band Operation

• Higher speed

• Less than 2sec. to change attenuation level from 0 to 70 dB

• Mode free

• Significantly quiet operation

• Programmable GPIB address (now goes up to 30)

• “xx.xx dB Command Complete,” message sent via USB or GPIB after attenuation level is reached

• LED buttons for changing Attenuation levels

• Improved resolution with 0.01 steps from 0 to 70 dB

• Backlit display

• Integrated shutdown safety feature in the event of failure

• MTBF more that 1 million cycles


• Fade Margin Testing of Microwave Radio

• Remote Control of RF Power Levels

• Instrumentation

• Automatic Test Setups

*All data presented is collected from a sample lot.
* Actual data may vary unit to unit, slightly.
*All testing was performed under +25 °C case temperature.
*Consult factory to confirm if material, plating, size, shape, orientation and any electrical parameter is critical for the application as website information is for reference only.
*Millimeter Wave Products, Inc. reserves the right to change the information presented on website without notice as we continue to enhance the performance and design of our products.

J-Band Programmable Rotary Vane Attenuators

The attenuators small compact size incorporates both the electronic controller and the microwave components. The unit operates from a single +24 Volt DC source or with an optional adapter. Attenuation range is from 0 to 70 dB in .01 dB steps from 0 to 70 dB.

A digital readout is provided on the front panel to display attenuation settings. USB & GPIB interface available. Tested to over 1 million cycles. New company proprietary internal absorbing material that will handle high power levels and yield low insertion loss and mode free operation to 70 dB attenuation levels