521U Series | Medium Power Handling

Features & Specifications

Mi-Wave’s 521 Series Fixed Waveguide Attenuators are engineered to deliver stable, high-accuracy attenuation across microwave and millimeter-wave systems.

Frequency Coverage: 8 GHz to 220 GHz

Available across standard waveguide bands for use in microwave and mmWave applications.

Fixed Attenuation Values: 6 dB to 30 dB

Offered in standard attenuation values depending on waveguide size and application requirements.

High Accuracy Performance

Each unit is calibrated at the specified frequency with accuracy within 0.1 dB or 1%.

H-Plane Fixed Attenuator Design

Designed for waveguide transmission systems requiring stable attenuation and predictable RF performance.

Calibrated at Specified Frequency

Provides precise attenuation reference tailored to the intended operating frequency.

Stable RF Performance

Maintains consistent attenuation characteristics across the operating band.

Reliable Mechanical Construction

Designed for dependable use in laboratory and instrumentation environments.

Supports Signal Isolation and Level Control

Helps reduce reflections and manage signal levels in RF systems.

Applications

Mi-Wave’s 521 Series Fixed Attenuators are used in microwave and millimeter-wave systems where accurate, fixed attenuation is required.

Generator Isolation

Used to isolate RF signal generators from mismatched load conditions, improving measurement stability and protecting equipment.

Signal Level Reduction

Provides controlled and repeatable attenuation to reduce RF signal levels in waveguide systems.

Power Measurement Range Extension

Enables RF power meters and sensors to operate within safe and accurate measurement ranges by reducing input signal levels.

Waveguide Test Systems

Commonly used in laboratory and instrumentation setups for repeatable RF testing and evaluation.

Calibration and Measurement Setups

Supports systems that require known attenuation values for accurate measurement and reference.

Microwave and Millimeter-Wave Applications

Suitable for use across standard waveguide bands from 8 GHz to 220 GHz.

Frequently Asked Questions (FAQ)

What is the 521 Series Fixed Attenuator?

The 521 Series is a fixed waveguide attenuator that provides a constant, calibrated amount of RF signal reduction.

What attenuation values are available?

The 521 Series is available in standard values from 6 dB to 30 dB.

What frequency range does the 521 Series cover?

These attenuators are available across waveguide bands from approximately 8 GHz to 220 GHz.

How accurate are the 521 Series attenuators?

Each unit is calibrated at the specified frequency and is accurate within 0.1 dB or 1%.

What is an H-plane attenuator?

An H-plane attenuator introduces attenuation within the H-plane of a waveguide, providing stable and predictable RF performance.

What are typical applications for the 521 Series?

They are used for generator isolation, signal level reduction, power measurement extension, and RF test setups.

Are these attenuators suitable for mmWave systems?

Yes. The 521 Series is designed for both microwave and millimeter-wave applications.

Glossary of Fixed Waveguide Attenuator Terms

Attenuator Fundamentals

Fixed Attenuator
An attenuator that provides a constant, predefined amount of signal reduction.

Waveguide Attenuator
An attenuator designed for use in waveguide transmission systems at microwave and millimeter-wave frequencies.

Fixed Waveguide Attenuator
A waveguide component that reduces RF power by a known, non-adjustable amount.

High Power Attenuator
An attenuator designed to handle greater RF input power without damage or degraded performance.

Electrical Performance

Attenuation (dB)
The reduction of RF signal power expressed in decibels.

Fixed Attenuation Value
The specified amount of signal reduction provided by the attenuator, such as 6 dB, 10 dB, 20 dB, or 30 dB.

Accuracy
How closely the actual attenuation matches the specified attenuation value.

Calibration
The process of verifying attenuation performance at a specified frequency.

Insertion Loss
The total signal loss introduced by a component in an RF path, including intended attenuation effects.

Power Handling
The maximum RF power an attenuator can safely dissipate.

RF and Frequency

Radio Frequency (RF)
Electromagnetic signals used in communications, sensing, and measurement systems.

Microwave Frequencies
Frequencies generally ranging from 1 GHz to 30 GHz.

Millimeter-Wave (mmWave)
Frequencies from 30 GHz to 300 GHz used in high-frequency communications, radar, and test systems.

Frequency Range
The span of frequencies over which the attenuator is designed to operate.

Specified Frequency
The exact frequency at which the attenuator is calibrated for its stated attenuation accuracy.

Waveguide and Design Terms

H-Plane Attenuator
A waveguide attenuator designed with attenuation introduced in the H-plane of the waveguide structure.

Waveguide Transmission Line
A metallic structure used to guide microwave and millimeter-wave energy with low loss.

Waveguide Band
A frequency range associated with a specific standard waveguide size.

Stable Attenuation
Consistent attenuation performance under normal operating conditions.

System and Applications

Generator Isolation
Using attenuation to reduce the effects of reflections from mismatched loads on a signal generator.

Mismatched Load Effects
Performance issues caused by reflections when the load impedance does not match the source or transmission line.

Power Measurement Range Extension
Using an attenuator to lower signal levels so they remain within the usable input range of a power meter or sensor.

Signal Source Output Reduction
Reducing the output power of a source by a known amount for testing, calibration, or system integration.

Test and Measurement
The evaluation of RF and microwave components and systems using instrumentation and controlled setups.

Note: Our website contains just a few types of  Attenuators we build. Consult with us for your specific needs.