STA-60-10-P1

Final Rev 2.5

Description:
Model STA-60-10-P1 is a motorized, programmable rotary vaneattenuator for use in millimeterwave systems across the standard
W-band frequency range of 75 to 110 GHz. The attenuation control
is an IEEE-488 (GPIB) and USB port interface to accommodate
remote operations from 0 to 70 dB. Attenuation increments are0.05 dB between 0 and 20 dB and 0.1 dB between 20 and 70 dB.
On the front panel, a local adjustment switch and digital readout
allow for convenient manual operations. When used remotely, the local switch can be locked to prevent
inadvertent adjustments. The motor control and interface circuits are custom designed and uniquely
packaged within the attenuator housing. The microprocessor based electronics ramp the speed of a precision
stepper motor to ensure fast and accurate positioning.

Features:•••

Applications:•••

Full Band CoverageHigh Attenuation Accuracy
IEEE-488 and USB Control Port

Test Lab
Instrumentations
Auto Test Set

Electrical Specifications:Parameter
RF Frequency Range
Insertion Loss
Attenuation Range
Attenuation Accuracy
Attenuation Step SizeControl ResolutionReturn Loss
Operating Voltage
Power HandlingSpecification Temperature
Operating Temperature

Minimum
75 GHzTypicalMaximum
110 GHz

SAGE Millimeter, Inc.

W-Band Programmable Attenuator

2.5 dB0 dB
70 dB
0.1 dB or 3% of the reading, whichever is larger, up to 40 dB
0.05 dB from 0 to 20 dB and 0.10 dB from 20 to 70 dB
0.01 dB Steps from 0 to 70 dB
20 dB+24 VDC (100 to 240 VAC Adapter is Supplied)
300 mW (CW)
+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:Parameter
RF Ports
Control Interface
DC BiasFinishWeightOutlineConnector
WR-10 Waveguide with UG-387/U-M Flange
IEEE-488 and USB Port
2.5 mm DC Jack (AC-to-DC power converter included)Gold Plated Waveguide Flange; Black Anodized Body
5 lbTA-PW-M2

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-60-10-P1

Final Rev 2.5

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

SAGE Millimeter, Inc.

W-Band Programmable Attenuator

Note:• 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.
• All calibration and testing are performed at +25 °C room temperature.
•••••

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.
The attenuation flatness is ±2% or ±0.5 dB of the indicated value, whichever is greater, for thefrequency band.
The phase shift value does change while varying the attenuation.
AC-to-DC power converter with cord is included.
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.
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