SAF-3534531725-219-S1

Q Band Scalar Feed Horn Antenna, 35 to 45 GHz, 17 dBi Gain
SAF-3534531725-219-S1 is a Q-band scalar feed horn antenna that
operates from 35 to 45 GHz. The antenna offers a 17 dBi nominal gain,
25 degree typical half power beamwidth, and -28 dB typical side lobelevel. The scalar feed horn is equipped with a 0.219” diameter circular
waveguide that supports both linear and circular polarization. A
rectangular waveguide port configuration that only supports linear
polarization is available under a different model number.

Electrical Specifications:Parameter

Minimum

TypicalMaximum

Frequency Range*

35 GHz40 GHz

45 GHzGain

17 dBi3 dB Beamwidth, E-plane

25°

3 dB Beamwidth, H-plane

25°

Side Lobes, E-plane-28 dB

ECCN

Side Lobes, H-plane-28 dB

EAR99

Return Loss

20 dB

Polarization

Linear and CircularSpecification Temperature
Operating Temperature

FEATURES+25 °C-40 °C+85 °C*Note: The operating frequency range of the feed horn can be extended to 33 to 48 GHzwith small performance degradation at band edge.

Circular Waveguide Interface
Precisely MachinedLow Side Lobe Level
High Return Loss
Linear and Circular Polarization

APPLICATIONS

Mechanical Specifications:Item•••••••

Specification

Antenna Port0.219” Diameter Circular Waveguide

Flange TypeUG-383/U-M Anti-cocking Flange

Material

Aluminum

FinishGold Plated

Weight

2.0 OzOutlineAF-CQ17-219-A•••

5G Systems
Feed Horn for Gaussian OpticalAntennas
Feed Horn for Cassegrain Antennas
Rapid System Setups
Engineering Setups

SUPPLEMENTAL DETAILS

www.eravant.com | 424-757-0168 | support@eravant.com
Copyright © 2023 by Eravant

Rev 1.21/5SAF-3534531725-219-S1

Measured Patterns at 35 GHz
10E plane
H plane0-10

Amplitude(dB)-20-30-40-50-60-70-80-180-160-140-120-100-80-60

-40

-20

0

20

4060

80

100

120

140160180

Boresight Angle (Degrees)

Measured Patterns at 40 GHz
10E plane
H plane0-10

Amplitude(dB)-20-30-40-50-60-70-80-180-160-140-120

-100

-80

-60

-40

-20

020

40

60

80

100

120

140160180

Boresight Angle (Degrees)
www.eravant.com | 424-757-0168 | support@eravant.com
Copyright © 2023 by EravantRev 1.2
2/5

SAF-3534531725-219-S1

Measured Patterns at 45 GHz
10E plane
H plane0Amplitude(dB)-10-20-30-40-50-60-70-180-160-140-120-100-80-60-40-20

0

2040

60

80

100120140160180

Boresight Angle (Degrees)Gain (dBi)

Measured Gain vs Frequency
20191817161514131211
1098765432
1
0
3536

3738

39

40

Frequency (GHz)www.eravant.com | 424-757-0168 | support@eravant.com
Copyright © 2023 by Eravant

41424344

45

Rev 1.2
3/5

SAF-3534531725-219-S1

Measured Cross-Pol vs Frequency
0-5Cross-Pol (dB)

-10-15-20-25-30-35-40-45
353637383940

41424344454142434445

Frequency (GHz)

Measured Return Loss vs Frequency
100

Return Loss (dB)

-10-20-30-40-50-60
353637383940

Frequency (GHz)www.eravant.com | 424-757-0168 | support@eravant.com
Copyright © 2023 by Eravant

Rev 1.2
4/5

SAF-3534531725-219-S1

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

NOTE:••

Test data provided is collected from a sample lot. Actual data may vary slightly from unit to unit. All testing is performed
under +25 °C room temperature.
Eravant 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 | 424-757-0168 | support@eravant.com
Copyright © 2023 by Eravant

Rev 1.2
5/5