Fixed Attenuators
Mi-Wave’s 521 Series Fixed Attenuators and 524 High Power Series Fixed Attenuators are precision waveguide components designed to provide accurate, repeatable fixed attenuation across standard waveguide bands from 8 GHz to 220 GHz. Available in attenuation values from 6 dB to 30 dB, these attenuators are used in microwave and millimeter-wave systems where stable signal reduction, improved measurement accuracy, and dependable waveguide performance are required.
Each fixed attenuator is calibrated at the exact frequency specified at the time of order and is designed to achieve accuracy within 0.1 dB or 1%, supporting precise signal level control in demanding RF and mmWave applications. The 521 Series is well suited for general fixed attenuation needs in laboratory, instrumentation, and test systems, while the 524 Series is intended for applications that require higher power handling.
All 521 Series units are H-plane fixed attenuators, making them especially useful in waveguide transmission lines where accurate fixed attenuation and consistent performance are critical. These attenuators are commonly used to isolate generators from mismatched load effects, extend the usable frequency range of power measurement equipment, and accurately reduce signal source output levels in microwave and millimeter-wave systems.
Built for dependable laboratory and system use, Mi-Wave fixed attenuators provide a practical solution for engineers who need known, stable attenuation values without the complexity of adjustable attenuation devices.
The standard models shown represent only part of Mi-Wave’s broader product capabilities. Custom configurations are available to support specific frequency bands, interfaces, and application requirements, enabling optimized solutions for specialized RF, microwave, and millimeter-wave systems.
Watch our informational video to learn more about this product family, including its key features, operating principles, and common applications.
Fixed Attenuators
The 521 & 524 Series Fixed Attenuators are used in millimeter wave and microwave applications that require accurate fixed attenuation levels in waveguide transmission lines. All units are H-plane fixed attenuators. The attenuators are useful for isolating generators from mismatched load effects. They are also used for extending the frequency ranges of power measuring equipment and for accurately reducing signal source output levels
What are fixed attenuators?
Fixed attenuators in circuits are used to lower voltage, dissipate power, and to improve impedance matching. In measuring signals, attenuator pads or adapters are used to lower the amplitude of the signal a known amount to enable measurements, or to protect the measuring device from signal levels that might damage it. Attenuators are also used to ‘match’ impedance by lowering apparent SWR (Standing Wave Ratio).
Interested in this product or other Mi-Wave solutions?
Contact our team to discuss your frequency range, interface needs, and application requirements.
Custom configurations are available for specialized RF, microwave, and millimeter-wave systems.
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