18 – 26.5 GHz, Dial-Type Variable Waveguide Attenuator

520K/595 Uncalibrated, WR-42, Power Handling 0.3 Watts


Mi-Wave’s 520 Series Uncalibrated Variable Attenuators and 522 Calibrated Attenuators are available in standard waveguide sizes from 8 to 220 GHz. The attenuating element in each unit provides a variable attenuation, from 0 dB to 25 dB minimum. Precision-designed internal controls are accurately contoured to provide a low bilateral VSWR and minimum variation of attenuation with frequency. Higher power handling versions (see datasheet) if available.


• Dial Driven

• Low Cost

• Compact, Mechanically Stable Design

• Wide Range of Attenuation Values

• Smooth, Spring-loaded Setting Control


• Instrumentation

• Manual Test Setups

Outline Drawing
Test Datasheet
High Power Test Data
*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.

Calibrated & Uncalibrated Waveguide Attenuators

The 520/522 Series Variable Attenuators are useful in applications that require a reliable level setting or isolating pad. They provide maximum accuracy in establishing initial power levels in substitution-method attenuation measurements. Designed to maintain reliable performance for accurate test measurements, the stable setting control of these devices maintains constant attenuation under all normal conditions of vibration and orientation.

Other Bands Available

• WR-90

• WR-75

• WR-62

• WR-34

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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