SAF-3335031535-250-S1

Q Band Scalar Feed Horn Antenna, 15 dBi Gain
SAF-3335031535-250-S1 is a Q-band scalar feed horn antenna that
operates from 33 to 50 GHz. The antenna offers a 15 dBi nominal gain,
35 degree typical half power beamwidth, and -25 dB typical side lobelevel. The scalar feed horn is equipped with a 0.250” 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

33 GHz41.5 GHz

50 GHzGain

15 dBi3 dB Beamwidth, E-plane

35°

3 dB Beamwidth, H-plane

35°

Side Lobes, E-plane-25 dB

ECCN

Side Lobes, H-plane-25 dB

EAR99

Return Loss

20 dB

Polarization

Linear and CircularSpecification Temperature
Operating Temperature

FEATURES+25 °C-40 °C+85 °C•••••

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

Mechanical Specifications:
APPLICATIONS
Item•Specification

Antenna Port0.250” Diameter Circular Waveguide

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

MaterialBrass•

FinishGold Plated

Weight

1.8 OzOutlineAF-CQ15-250-A

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 1.0
1/5

SAF-3335031535-250-S1

Measured Patterns at 33 GHz
10E plane
0H plane

Amplitude(dB)-10-20-30-40-50-60-70-180-160-140-120-100-80-60-40-20020Boresight Angle (Degrees)

4060

80

100120140160180

Measured Patterns at 41.5 GHz
10E plane
0H plane-10

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

020

Boresight Angle (Degrees)

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

4060

80

100120

140

160

180

Rev 1.02/5

SAF-3335031535-250-S1

Measured Patterns at 50 GHz
10E plane
H plane0

Amplitude(dB)-10-20-30-40-50-60-70-180-160-140-120-100-80-60-40-20020406080

1001201404445464748160180

Boresight Angle (Degrees)Gain (dBi)

Measured Gain vs Frequency
201918171615141312111098765432103334353637383940

41424349

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

Rev 1.0
3/550

SAF-3335031535-250-S1

Measured Cross-Pol vs Frequency
0-10

Cross-Pol (dB)-20-30-40-50-60-70
333435363738

3940

4142

434445464748495043444546474849

50

Frequency (GHz)

Measured Return Loss vs Frequency
0-10Return Loss (dB)-20-30-40-50-60
333435

3637

38

3940

41

42

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

Rev 1.0
4/5

SAF-3335031535-250-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 1.0
5/5