SAT-333-28028-S1

Rev. 1.2

Description
Model SAT-333-28028-S1 is a WR-28 orthomode transducer(OMT) that operates between 24 and 42 GHz. The OMTseparates a circular or elliptical polarized waveform into
two linear, orthogonal waveforms or combines two linear
polarized waveforms into one circular or elliptical polarized
waveform or vice versa. The OMT also supports either
vertical or horizontal polarized waveguide forms. The OMTshows high port isolation while providing a low insertion loss. The OMT is configured with a 0.280” x0.280” square waveguide for the antenna port and two WR-28 waveguides for the horizontal andvertical ports. All ports have standard UG-599/U flanges and 4-40 threaded holes.

Features:•••

Applications:High Isolation
Low Insertion Loss
Full Band Performance•••

Radar and Communication Systems
Antenna Range
Circular and Linear Waveform Separation
and Combination

Electrical Specifications:Parameter
Frequency Range
Insertion Loss (A to V Port)
Insertion Loss (A to H Port)
Isolation (V to H Port)
Return Loss (H Port)
Return Loss (V Port)
Return Loss (A Port, Vertical)
Return Loss (A Port, Horizontal)
Specification Temperature
Operating Temperature

Minimum
24 GHzTypicalMaximum
42 GHzSAGE Millimeter, Inc.

WR-28 Orthomode Transducer, 24 to 42 GHz, Square Waveguide Port

0.5 dB
0.5 dB
35 dB
15 dB
15 dB
15 dB
15 dB
+25 ˚C-40 ˚C+85 ˚C

Mechanical Specifications:
Item
Antenna Port
Horizontal and Vertical Ports
Flange Type
Material and Finish
WeightSize
OutlineSpecification
0.280” x 0.280” Square WaveguideWR-28 WaveguideUG-599/U Flange 4-40 Threaded HolesGold Plated Aluminum
2.3 Oz1.70” (L) x 1.25” (W) x 0.75” (H)AT-AS-280-F

www.eravant.com | 501 Amapola Ave, Torrance, CA 90501
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: sales@eravant.com
Copyright © 2024 by Eravant

Page | 1

SAT-333-28028-S1

Rev. 1.2

Typical Performance vs. Frequency
00-1-4Insertion Loss (H)-3

Insertion Loss (V)-4

Isolation-8-12-16-20-5-24-6-28-7-32-8-36-9-40-10-4427282930

3132

33

3435

3637

38

3940

41

42

Frequency (GHz)

Typical Return Loss vs. Frequency
0Isolation (dB)

Insertion Loss (dB)-2

SAGE Millimeter, Inc.

WR-28 Orthomode Transducer, 24 to 42 GHz, Square Waveguide Port

Return Loss (Antenna Horizontal Port)
Return Loss (Antenna Vertical Port)-5

Return Loss (Horizontal Port)
Return Loss (Vertical Port)-10

Return Loss (dB)

-15
-20
-25
-30
-35
-40
-45
27

28.5

30

31.5

33

34.5

36

37.5

39

40.5

42Frequency (GHz)www.eravant.com | 501 Amapola Ave, Torrance, CA 90501
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: sales@eravant.com
Copyright © 2024 by Eravant

Page | 2SAT-333-28028-S1

Rev. 1.2

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

SAGE Millimeter, Inc.

WR-28 Orthomode Transducer, 24 to 42 GHz, Square Waveguide PortNote:• All data presented is collected from a sample lot. Actual data may vary unit to unit, slightly.
• All testing was performed under +25˚C room temperature.
• SAGE Millimeter, Inc. reserves the right to change the information presented without notice.
Caution:•Any foreign objects in the antenna will cause performance degradation and possible device
damage.

www.eravant.com | 501 Amapola Ave, Torrance, CA 90501
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: sales@eravant.com
Copyright © 2024 by Eravant

Page | 3