SAG-3234033802-250-S1

Ka Band Gaussian Optics Antenna, 32 to 40 GHz, 38 dBi
Gain
SAG-3234033802-250-S1 is a 12” Ka-Band Gaussian antenna that
operates from 32 to 40 GHz. The Gaussian antenna delivers a 38 dBi
nominal gain and 1.9 degree half power beamwidth. The antenna
supports both linear and circular polarized waveforms and employs acorrugated feed horn to offer excellent aperture efficiency, high crosspolarization rejections, and low sidelobe levels. This model is equippedwith a 0.250” diameter circular waveguide and UG-599/U flange as its
input port. By adding a mode transition, Eravant model number SWT28250-SB, the input port becomes a standard WR-28 waveguide, which
can only support linear polarized waveforms.

Electrical Specifications:Parameter
Frequency

Minimum

Typical32 GHzGain

38 dBi3 dB Beamwidth

1.9˚

Sidelobes-25 dB

Cross Polarization-20 dBECCN

40 GHz

EAR99

FEATURES-20 dB

Polarization

Linear and Circular

Return Loss

14 dB

Specification Temperature+25°C

Operating Temperature

Maximum• Center Fed• Low sidelobes• Low cross polarization
APPLICATIONS••-40°C+85°CRadar systems
Communication systems• Plasma systems

SUPPLEMENTAL DETAILS

Mechanical Specifications:
ItemSpecification

Antenna Port0.250” Dia Circular Waveguide with UG-599/U Flange

Lens Diameter

12.0”

MaterialAluminum

FinishBlack Anodized

Weight19.5 lb.

Outline

AG-CA38-250

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

Final Rev 1.3
1/5

SAG-3234033802-250-S1

Simulated Patterns at 32 GHz50
E plane40

H plane

3020Gain (dBi)

100-10-20-30-40-50-60-180-160-140-120-100-80-60-40-20020406080

100120140160

180

Borsight Angle (Degree)

Simulated Patterns at 36 GHz
50E plane

40H plane

3020Gain (dBi)

100-10-20-30-40-50-60-180-160-140-120-100-80-60-40-2002040

60

80

100120140160180

Borsight Angle (Degree)
www.eravant.com | 424-757-0168 | support@eravant.com
Copyright © 2023 by Eravant

Final Rev 1.32/5

SAG-3234033802-250-S1

Simulated Patterns at 40 GHz
50E plane

40H plane

3020

Gain (dBi)

100-10-20-30-40-50-60-180-160-140-120-100-80-60-40-20020406080100120140160180

Borsight Angle (Degree)

Simulated Gain vs Frequency
4140.540

Gain (dBi)39.5
3938.53837.537323334353637383940

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

Final Rev 1.3
3/5

SAG-3234033802-250-S1

Simulated 3dB Beamwidth vs Frequency
2.5
E plane BW
H plane BW

3dB Beamwidth (Degrees)

21.5

10.5

0323334353637383940

Frequency (GHz)

Measured Return Loss vs Frequency
0Return Loss (dB)

-10-20-30-40-50-60
27

29.5

3234.53739.542Frequency (GHz)www.eravant.com | 424-757-0168 | support@eravant.com
Copyright © 2023 by Eravant

Final Rev 1.3
4/5

SAG-3234033802-250-S1

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

NOTE:
••

Test data provided is from a sample lot. Actual data may vary slightly from unit to unit. All testing is performed under +25 °Croom 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

Final Rev 1.3
5/5