STA-60-34-D1

Rev. 1.2

Description:
Model STA-60-34-D1 is a direct reading, rotary vaneattenuator for use in millimeter wave systems acrossthe standard WR-34 frequency range of 22 to 33 GHz.
The attenuator has a large scale dial which indicatesthe attenuation value directly. The attenuator is an
ideal piece of equipment in waveguide systems wherea broad direct reading of attenuation is required. The
attenuator exhibits 0.5 dB typical insertion loss and up
to 60 dB maximum attenuation. The accuracy of theattenuator is 0.1 dB or 3% of the reading, whichever is larger, up to 40 dB, 5% up to 50 dB, and “forreference only” above 50 dB.

Features:•••Applications:•••

Full Band CoverageHigh Attenuation Accuracy
Large Scaled Dial

Test Lab
Instrumentations
Manual Test Set

Electrical Specifications:Parameter
RF Frequency Range
Insertion Loss
Attenuation Range
Attenuation Accuracy
Return Loss
Power HandlingSpecification Temperature
Operating Temperature

Minimum
22 GHzTypicalMaximum
33 GHzSAGE Millimeter, Inc.

WR-34 Band Direct Reading Attenuator

0.5 dB0 dB
60 dB
0.1 dB or 3% of reading, whichever is larger, up to 40 dB
20 dB
500 mW+25 ˚C+25 ˚C*This product is intended to be used in a controlled lab environment.
To ensure best possible accuracy and prevent unintended behavior, please operate the unit as close to +25 °C room
temperature as possible.

Mechanical Specifications:
Item
Waveguide Ports
Reading
Scale Increments
Insertion Length
Flange Material
FinishWeightOutline

Specification
WR-34 Waveguide with UG-1530/U Flange
Large Scale Dial
0.01 dB (0 to 0.1 dB); 0.05 dB (0.1 to 1.0 dB); 0.1 dB (1.0 to 10 dB)
0.02 dB (10 to 20 dB); 0.05 dB (20 to 30 dB); 1.0 dB (30 to 50 dB)
9.40”
BrassGold Plated Waveguide Flange; Black Anodized Body
2.4 lbs.
TA-D3-M1

www.eravant.com | 501 Amapola Ave, Torrance, CA 90501
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: support@eravant.com
Copyright © 2024 by Eravant

Page | 1

STA-60-34-D1

Rev. 1.2

Typical Attenuation vs Frequency
0-10Attenuation (dB)-20-30-40-50-60-70-80-902223242526272829303132

Frequency (GHz)
Insertion Loss
Attenuation 30 dB
Attenuation 60 dB

Attenuation 10 dB
Attenuation 40 dB
Attenuation 70 dB

Attenuation 20 dB
Attenuation 50 dB

Mechanical Outline: (Unless otherwise specified, all dimensions are in inches [millimeters])

33

SAGE Millimeter, Inc.

WR-34 Band Direct Reading Attenuator

www.eravant.com | 501 Amapola Ave, Torrance, CA 90501
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: support@eravant.com
Copyright © 2024 by Eravant

Page | 2

STA-60-34-D1

Rev. 1.2Note:• All data presented is collected from a sample lot. Actual data may vary unit to unit, slightly.
• All calibration and testing are performed at +25 °C room temperature.
• Calibration accuracy is 0.1 dB or 3% of the reading, whichever is greater, for attenuation ranges
up to 40 dB, 5% up to 50 dB, and “for reference only” above 50 dB.
• This product is intended to be used in a controlled lab environment. To ensure best possible
accuracy and prevent unintended behavior, please operate the unit as close to +25 °C roomtemperature as possible.
• The attenuation flatness is ±2% or ±0.5 dB of the indicated value, whichever is greater, for thefrequency band up to 30 dB.
• The phase shift value does change while varying the attenuation.
• Every twelve-months, a scheduled recalibration is recommended.
• Eravant reserves the right to change the information presented without notice.
Caution:• Exceeding absolute maximum ratings shown will damage the device.
• Any foreign objects in the waveguide will cause performance degradation and may damage thedevice.

SAGE Millimeter, Inc.

WR-34 Band Direct Reading Attenuator

www.eravant.com | 501 Amapola Ave, Torrance, CA 90501
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: support@eravant.com
Copyright © 2024 by Eravant

Page | 3