SNW-7637831535-12-CM

Rev. 1.1

Description:
Model SNW-7637831535-12-CM is an E band waveguide threejunction circulator that covers the frequency range of 76 to 78
GHz. The three-junction waveguide circulator is designed andmanufactured to provide a low insertion loss of 1.5 dB and a highport isolation of 35 dB between designated ports. The threejunction circulator is offered for high port isolation duplexing
between the transmitter and receiver. Unlike single junction
circulator, the three-junction circulator offer inherent high port
insertion loss from port 3 to port 1 and slightly lower isolationfrom port 1 to port 3 due to its unique mechanical configuration. The RF ports of the circulator are WR12 waveguides with UG-387/U flanges.

Features:••••

Applications:

Low Insertion Loss
High Isolation
Compact Configuration
3 Junctions••••

TX/RX Duplexing
Automotive Radar System
Module Integration
Port Isolation

Electrical Specifications:Parameter
Minimum
TypicalMaximum
Frequency
76 GHz78 GHzInsertion Loss*
1.5 dB(Port 1 to Port 2 & Port 2 to Port 3)
Isolation*35 dB(Port 2 to Port 1 & Port 3 to Port 2)
Insertion Loss (Port 3 to Port 1)*
30 dB
35 dB
Isolation (Port 1 to Port 3)*
25 dB
Return Loss18
Forward Power Handling
3 W (CW)
Reverse Power Handling
3 W (CW)
Specification Temperature+25 °COperation Temperature-40 °C+85 °C*The values are obtained when the spare port is terminated with high performance load.

SAGE Millimeter, Inc.

E Band Waveguide Three-Junction Circulator, 76 to 78 GHz

Mechanical Specifications:
Item
RF Ports
Body Material
Body Finish
Cover Finish
WeightSize
OutlineSpecification
WR-12 Waveguide with UG-387/U Flange
AluminumGold PlatedBlack Anodized
0.8 Oz1.10” (L) X 1.14” (W) X 0.98” (H)
NW-CE-3

www.eravant.com | 501 Amapola Avenue, Torrance, CA 90501
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: support@eravant.com
Copyright © 2023 by Eravant

Page | 1

SNW-7637831535-12-CM

Rev. 1.1

Typical Performance vs. Frequency (Port 1 to Port 2)
0-5-10Return LossPort 1 to Port 2 Insertion Loss-10-20

Port 2 to Port 1 Isolation-15-30-20-40-25-50-30Isolation Loss (dB)

Insertion Loss and Return Loss (dB)

0-60
76.0

76.2

76.4

76.6

76.8

77.0

77.2

77.4

77.6

77.8

78.0

Frequency (GHz)

Typical Performance vs. Frequency (Port 2 to Port 3)
0-5

-10

Return LossPort 2 to Port 3 Insertion Loss-10-20

Port 3 to Port 2 Isolation

-15

-30

-20

-40

-25

-50

-30
76.00

76.20

76.40

76.60

76.80

77.00

77.20

77.40

77.60

77.80

Return Loss (dB)

Insertion Loss and Return Loss (dB)

0SAGE Millimeter, Inc.

E Band Waveguide Three-Junction Circulator, 76 to 78 GHz

-60
78.00

Frequency (GHz)www.eravant.com | 501 Amapola Avenue, Torrance, CA 90501
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: support@eravant.com
Copyright © 2023 by Eravant

Page | 2

SNW-7637831535-12-CM

Rev. 1.1

Typical Performance vs. Frequency (Port 3 to Port 1)
00
Return Loss

-10

Port 1 to Port 3 Isolation
Port 3 to Port 1 Insertion Loss

-10

-20

-15

-30

-20

-40

-25

-50

-30

-60
76.0

76.2

76.4

76.6

76.8

77.0

77.2

77.4

77.6

77.8

78.0

Frequency (GHz)

Insertion Loss

Return Loss and Isolation (dB)-5

SAGE Millimeter, Inc.

E Band Waveguide Three-Junction Circulator, 76 to 78 GHz

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

www.eravant.com | 501 Amapola Avenue, Torrance, CA 90501
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: support@eravant.com
Copyright © 2023 by Eravant

Page | 3

SNW-7637831535-12-CM

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.
Eravant reserves the right to change the information presented without notice.

Caution:•••Exceeding absolute maximum ratings will damage the device.
This device is magnetic sensitive. Keep the device at least 6” away from magnetic fields.
Any foreign objects in the waveguide will degrade the performance and/or damage the device.

SAGE Millimeter, Inc.

E Band Waveguide Three-Junction Circulator, 76 to 78 GHz

www.eravant.com | 501 Amapola Avenue, Torrance, CA 90501
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: support@eravant.com
Copyright © 2023 by Eravant

Page | 4