STA-30-34-M1

Rev 1.1

Description:
Model STA-30-34-M1 is a WR-34 level setting
attenuator that covers the frequency range from 22to 33 GHz. The attenuator features a precision
micrometer dial with a knurled head locking screw,which allows for stable, repeatable settings that canbe locked at any attenuation value. The level setting
attenuator is an ideal piece of equipment inwaveguide systems where broadband attenuation isrequired. The attenuator exhibits 0.3 dB typicalinsertion loss and up to 30 dB nominal attenuation
value across the entire operating bandwidth. The other attenuator types, such as direct reading,programmable and fixed tuned attenuators are also available under different model numbers.

Features:••••

Applications:•••

Full band Coverage from 22 to 33 GHz
Head Locking Screw
Precision Machined Housing
Convenient Level Setting

Test Lab
Instrumentations
Manual Test Set

SAGE Millimeter, Inc.

WR-34 Level Setting Attenuator, Head Locking Screw, 22 to 33 GHz

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

Minimum22 GHzTypical
0.3 dB
30 dB
20 dB
1 W (CW)+25 ˚C-40 ˚CMaximum
33 GHz

1.2 W (CW)+85 ˚Cwww.sagemillimeter.com | 3043 Kashiwa Street, Torrance, CA 90505
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: sales@sagemillimeter.com
Copyright © 2021 by SAGE Millimeter, Inc.

Page | 1

STA-30-34-M1

Rev 1.1

SAGE Millimeter, Inc.

WR-34 Level Setting Attenuator, Head Locking Screw, 22 to 33 GHz
Mechanical Specifications:
Item

Specification
WR-34 Waveguide with UG-1530/U Flange
Head Locking Screw Type Micrometer
0.5mm0.01mm4.00”
BrassGold Plated
9.0 oz.
TA-M3

RF Ports
Setting Type
Micrometer Pitch
Micrometer Resolution
Insertion Length
Material
FinishWeight
OutlineTypical Measured Attenuation vs Frequency
0-5Attenuation (dB)

-10-15-20-25-30-35-40
22

23

24

25

26

27

28

29

30

31

32

33

Frequency (GHz)
Insertion Loss

3 dB

6 dB

10 dB

20 dB

30 dB

www.sagemillimeter.com | 3043 Kashiwa Street, Torrance, CA 90505
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: sales@sagemillimeter.com
Copyright © 2021 by SAGE Millimeter, Inc.

Page | 2STA-30-34-M1

Rev 1.1

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

SAGE Millimeter, Inc.

WR-34 Level Setting Attenuator, Head Locking Screw, 22 to 33 GHzNote:••••

All data presented is collected from a sample lot. Actual data may vary unit to unit.
All testing was performed under +25 °C case temperature.
For more information on the technical details of level-setting attenuators and other types ofwaveguide attenuators, a short instructional blog is available here (FIXED, LEVEL SETTING,DIRECT READING, AND PROGRAMMABLE ATTENUATORS)SAGE Millimeter, Inc. reserves the right to change the information presented without notice.

Caution:••••RF power should never exceed 1.2 W.
Forcing the micrometer down after encountering resistance may damage the dielectric sheet
inside. This will cause permanent performance degradation and decrease the long-term stability
and repeatability of the device.
Attempting to adjust the micrometer setting while the head locking screw is engaged may damage
the micrometer and decrease the long-term stability and repeatability of the device.
Any foreign objects in the waveguide will cause performance degradation and may damage thedevice.
www.sagemillimeter.com | 3043 Kashiwa Street, Torrance, CA 90505
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: sales@sagemillimeter.com

Copyright © 2021 by SAGE Millimeter, Inc.

Page | 3