SAF-2434231725-328-S1-280-DP

Rev. 1.1

Description:
SAF-2434231725-328-S1-280-DP is a dual
polarized, WR-28 scalar feed horn antennaassembly that covers several popular 5G
bands in the frequency range of 24 to 42 GHz.
The assembly features an integrated
orthomode transducer (OMT) that provides
high port isolation and a broad band scalarhorn that provides low sidelobe levels. TheOMT enables the antenna to separate a circular or elliptical polarized waveform into two linear,orthogonal waveforms or vice versa. The dual polarized horn also supports either vertical or horizontal
polarized waveguide forms. At center frequency, the horn antenna exhibits 17 dBi nominal gain, typicalhalf power beamwidth of 25 degrees and sidelobe levels of -25 dB or lower. The OMT exhibits 35 dB
typical port isolation between the horizontal and vertical ports. The horizontal and vertical ports are
WR-28 waveguides with UG-599/U compatible flanges with 4-40 threaded holes. Coaxial port
configurations are also available under different model numbers. The orthomode transducer (ModelSAT-333-28028-S1), compact square to circular transition (Model SWT-280328-SA-C-QC), and scalar
feed horn antenna (Model SAF-2434231725-328-S1) can be purchased separately.

Features:•••

SAGE Millimeter, Inc.

WR-28 Dual Polarized Scalar Feed Horn Antenna, 24 to 42 GHz, 17 dBi

Applications:••••

24 to 42 GHz Operations
Linear and Circular Polarizations
High Port Isolation

5G Systems
Radar Systems
Communication Systems
Circular and Linear Waveform Separation
and Combination

Electrical Specifications:Parameter
Frequency
Gain
3 dB Beamwidth, E-plane
3 dB Beamwidth, H-plane
Sidelobes, E-planeSidelobes, H-plane
V and H Port Isolation
Port Return Loss
Specification Temperature
Operating Temperature

Minimum
24 GHzTypical33 GHz
17 dBi25°25°-25 dB-25 dB
35 dB
15 dB+25 ˚C

Maximum
42 GHz-40 ˚C+85 ˚Cwww.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

SAF-2434231725-328-S1-280-DP

Rev. 1.1

Mechanical Specifications:
Item
Horizontal and Vertical Ports
MaterialFinishWeight
Size
OutlineSpecification
WR-28 Waveguide with UG-599/U Compatible Flange
AluminumGold Plated
6.0 Oz4.90” (L) x 1.50” (Ø) x 1.25” (W) x 0.75” (H)AF-RA17-328-280-DP

Simulated Antenna Patterns @ 24 GHz
3020E-Plane
10H-Plane

Gain (dBi)

0-10

SAGE Millimeter, Inc.

WR-28 Dual Polarized Scalar Feed Horn Antenna, 24 to 42 GHz, 17 dBi-20-30-40-50-180-150-120-90-60-30

0306090120150180

Boresight Angle (Degree)

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SAF-2434231725-328-S1-280-DP

Rev. 1.1

Simulated Antenna Patterns @ 33 GHz
3020E-Plane
10H-Plane

Gain (dBi)0-10-20-30-40-50-180-150-120-90-60-30

0306090120150

180150180

Boresight Angle (Degree)

SAGE Millimeter, Inc.

WR-28 Dual Polarized Scalar Feed Horn Antenna, 24 to 42 GHz, 17 dBi

Simulated Antenna Patterns @ 42 GHz
3020E-Plane
H-Plane10Gain (dBi)0-10-20-30-40-50-180-150-120-90-60-300306090120

Boresight Angle (Degree)

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

SAF-2434231725-328-S1-280-DP

Rev. 1.1

Simulated Gain vs. Frequency
25Gain (dBi)

20

15

1050
24

25.5

27

28.5

30

31.5

33

34.5

36

37.5

39

40.5

4243.540.54243.5Frequency (GHz)

SAGE Millimeter, Inc.

WR-28 Dual Polarized Scalar Feed Horn Antenna, 24 to 42 GHz, 17 dBi

Simulated 3dB Beamwidth vs. Frequency
40353 dB Beamwidth (Degrees)

E-Plane
30H-Plane

25201510502425.5

2728.53031.53334.53637.539Frequency (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

SAF-2434231725-328-S1-280-DP

Rev. 1.1

Typical Return Loss vs Frequency
0
Return loss (H Port)
Return loss (V Port)-10

Return Loss (dB)-20-30-40-50-60
24

25.5

2728.53031.5

3334.53637.53940.54243.5Frequency (GHz)

SAGE Millimeter, Inc.

WR-28 Dual Polarized Scalar Feed Horn Antenna, 24 to 42 GHz, 17 dBi

Typical Isolation vs Frequency
0-10Isolation (dB)

-20
-30

-40
-50
-60
-70
-80
24

25.5

27

28.5

30

31.5

33

34.5

36

37.5

39

40.5

4243.5Frequency (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 | 5

SAF-2434231725-328-S1-280-DPRev. 1.1

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

SAGE Millimeter, Inc.

WR-28 Dual Polarized Scalar Feed Horn Antenna, 24 to 42 GHz, 17 dBi

Note:
••••

Antenna Patterns, Gain, & 3 dB Beamwidth data are simulated. Actual data may vary, slightly.
Return Loss and Isolation data are collected from a sample lot. Actual data may vary unit to unit,slightly.
All testing was performed under +25 ˚C room temperature.
Eravant reserves the right to change the information presented without notice.

Caution:•Any foreign objects in the antenna or waveguide will cause performance degradation andpossible device damage.

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 | 6