SKA-7138633030-1212-A1

Rev. 1.1

Description:
Model SKA-7138633030-1212-A1 is an E-Band, PIN diodebased electrical attenuator. The attenuator exhibits 2.5 dB
typical insertion loss and 25 dB nominal attenuation acrossthe frequency range of 71 to 86 GHz. The attenuator canalso cover the entire E-Band frequency range with slight
performance degradation at the high and low ends of theband. The control voltage of the standard model is 0 to -5
VDC with a typical current draw of 5 mA. However, theattenuator can also be configured with a positive control
voltage from 0 to +5 VDC. The control speed of theattenuator can go up to 100 ns. The RF input and output
ports are WR-12 waveguides with UG-387/U flanges, and a female SMA coaxial connector provides thecontrol signal.

Features:•••

Applications:•••

Low Insertion Loss
High Dynamic Range
Fast Control Speed

Radar Systems
Communication Systems
Testing Equipment

SAGE Millimeter, Inc.

High Dynamic Range Electrical Attenuator, E BandElectrical Specifications:Parameter
Frequency
Insertion Loss
Attenuation
Power HandlingControl Voltage
Control Speed
Specification Temperature
Operating Temperature

Minimum
71 GHz2.0 dB

Typical
2.5 dB
25 dB+20 dBm
0 to -5 VDC /5 mA
100 ns+25 °C-40 °C

Maximum
86 GHz4.0 dB+23 dBm
0 to -6 VDC /8 mA+85 °C

Mechanical Specifications:
Item
RF Ports
Bias Port
Case Material
FinishWeightInsertion Length
OutlineSpecification
WR-12 Waveguide with UG-387/U Flange
SMA(F)
AluminumGold Plated
0.4 Oz1.2”
KA-AE

www.sagemillimeter.com | 3043 Kashiwa Street, Torrance, CA 90505
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: sales@sagemillimeter.com
Copyright © 2018 by SAGE Millimeter, Inc.

Page | 1

SKA-7138633030-1212-A1

Rev. 1.1

Typical Attenuation vs. Frequency at Various Control Voltage Value
0-50V

1V

2V

3V

4V

5V

Attenuation (dB)

-10-15-20-25

-30

-35
71

74

77

80

83

86

SAGE Millimeter, Inc.

High Dynamic Range Electrical Attenuator, E Band

Frequency (GHz)

Mechanical Outline: (Unless otherwise specified, all dimensions are in inches)www.sagemillimeter.com | 3043 Kashiwa Street, Torrance, CA 90505
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: sales@sagemillimeter.com
Copyright © 2018 by SAGE Millimeter, Inc.

Page | 2

SKA-7138633030-1212-A1

Rev. 1.1

Note:
•••
•

All data presented is collected from a sample lot. Actual data may vary unit to unit slightly.
All testing was performed under +25 ˚C case temperature.
Other mechanical configurations are available under different model numbers.
SAGE Millimeter, Inc. reserves the right to change the information presented without notice.

Caution:• Exceeding absolute maximum ratings shown will damage the device.
• The attenuator is a static sensitive device. Always follow ESD rules when working with theattenuator.
• Any foreign objects in the waveguide will cause performance degradation and possible device
damage.
• Proper torque, 8.0 ± 0.15 inch-pounds (0.92 ± 0.05 Nm), should be applied. SAGE Millimeter
torque wrench, model SCH-08008-S1, is highly recommended.

SAGE Millimeter, Inc.

High Dynamic Range Electrical Attenuator, E Bandwww.sagemillimeter.com | 3043 Kashiwa Street, Torrance, CA 90505
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: sales@sagemillimeter.com
Copyright © 2018 by SAGE Millimeter, Inc.

Page | 3