26.5 – 40 GHz, Micrometer Dial-Type Variable Waveguide Attenuators

523A/599, WR-28, Attenuation Range 0 to 30 dB, VSWR 1.2:1


Mi-Wave’s 523 Series Micrometer-driven Calibrated Attenuators are compact precision attenuating devices available in standard waveguide sizes from 18.0 to 220 GHz.Each attenuator is calibrated at the frequency specified at the time of order.


• High Resolution

• Low Cost

• Micrometer Readout

• Differential Screw Drive

• Anti-backlash Operation

• Excellent Mechanical Stability

• Calibration Curve Provided at Specified Frequency


• Instrumentation

• Manual Test Setups

Outline Drawing
Test Datasheet
*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.

Variable Waveguide Attenuators – Micrometer Driven

The 523 Series Micrometer-driven Calibrated Attenuators are designed for laboratory applications in standard waveguide bands from 18.0 to 220.0 GHz. The drive mechanism is designed for the high resolution of vane insertion vs. attenuation characteristics that is required for the small waveguide dimensions associated with the higher millimeter wave frequencies. These attenuators are very useful for insertion loss measurements, and a wide variety of other attenuation and power level determinations

standard gain horn antenna page

How to Order & Custom Products

As the manufacturing source, we have top sales engineers ready to answer all your questions and quote you on product needs. You’ll find our prices are some of the best since we manufacture all our millimeter wave products in house.

Have a custom job or unique need? No problem! Contact us so we can work on solutions to meet your needs.

2007 Gandy Blvd N
Suite 1310
St. Petersburg, FL 33702

Tel: 727-563-0034
Fax: 727-563-0031

Email: [email protected]

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