STA-60-05-P1

Final Rev 2.5

Description:
Model STA-60-05-P1 is a motorized, programmable rotary vaneattenuator for use in millimeterwave systems across the standard
G-band frequency range of 140 GHz to 220 GHz. The attenuation
control is an IEEE-488 (GPIB) and USB port interface toaccommodate remote operations from 0 to 70 dB. Attenuation
increments are 0.05 dB between 0 and 20 dB and 0.1 dB between
20 and 70 dB. On the front panel, a local adjustment switch anddigital 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 anduniquely packaged within the attenuator housing. The microprocessor based electronics ramp the speed ofa 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

SAGE Millimeter, Inc.

G-Band Programmable Attenuator

Electrical Specifications:Parameter
RF Frequency Range
Insertion LossAttenuation Range
Attenuation Accuracy
Attenuation Step Size
Control Resolution
Return Loss
Operating Voltage
Power HandlingSpecification Temperature
Operating Temperature

Minimum
140 GHz

TypicalMaximum
220 GHz

6.3 dB0 dB
60 dB
0.1 dB or 3% of reading, whichever is larger, up to 40 dB
0.05 dB from 0 to 20 dB; 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)
100 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.

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-60-05-P1Final Rev 2.5

SAGE Millimeter, Inc.

G-Band Programmable Attenuator
Mechanical Specifications:
Item
RF Ports
Control Interface
DC BiasFinishWeight
Outline0Parameter
WR-05 Waveguide with UG-387/U-M FlangeIEEE-488 and USB Port
2.5 mm DC Jack (AC-to-DC power converter included)Gold Plated Waveguide Flange; Black Anodized Body
5 lbs
TA-PG-M2

Typical Performance Vs Frequency-5-10-15

Attenuation (dB)-20-25-30-35-40-45
-50
-55
-60
-65

Insertion Loss
Attenuation 40 dB

-70
-75
170

175

180

Attenuation 10 dB
Attenuation 50dB
185

190

Attenuation 20 dB
Attenuation 60 dB

195

200

205

Attenuation 30 dB
Attenuation 70 dB
210

215

220

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

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STA-60-05-P1

Final Rev 2.5

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

SAGE Millimeter, Inc.

G-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 | 3