Waveguide Fixed Attenuators

Waveguide Fixed Attenuators up to 260 GHz

Waveguide Fixed Attenuators from ELVA-1

Precision signal control for waveguide systems

Waveguide fixed attenuators are precision passive components designed to introduce a defined level of attenuation into waveguide transmission lines. They are ideal for applications requiring consistent and repeatable signal reduction without introducing distortion.

ELVA-1 offers a comprehensive range of fixed waveguide attenuators with attenuation levels from 1 dB to 40 dB. Each unit is engineered for low VSWR and minimal insertion loss within its operating frequency band. Models are available for all standard waveguide bands.

Applications
• Signal level adjustment in test environments
• Calibration of RF measurement systems
• Optimization of RF signal chains
• Receiver protection in high-power applications

Key Features
• Fixed attenuation values from 1 dB to 40 dB
• High accuracy and long-term stability
• Low insertion loss with excellent VSWR performance
• Compact design compatible with waveguide systems
• Broad selection across standard frequency bands
• Custom attenuation values available upon request

Abbreviation code legend (How to order)

When ordering, please specify:
• Waveguide band (e.g., WR-28)
• Desired attenuation value (e.g., 20 dB)
• Flange type (e.g., UG-599/U)
• Any special requirements (e.g., high power, custom flanges)

Example:
WA-28/20-UG599/U
— Waveguide attenuator, WR-28 (K-band), 20 dB, UG-599/U/U flanges. centred at 70 GHz
Please contact us for tailored solutions.

Specifications

ParameterValue
Attenuation Values1 to 40 dB (1 dB steps or custom)
Frequency Range18 GHz to 260 GHz (band-dependent)
Attenuation Accuracy±0.5 dB (typical)
VSWR≤ 1.15 (typical)
Power HandlingUp to 1 W (CW); higher on request
Flange TypesUG, UDR, PDR (others on request)
MaterialAluminum or brass, silver/gold-plated
Operating Temperature−40 °C to +60 °C

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