SAG-7138634002-12-S1

E-Band Gaussian Optics Antenna, 71 to 86 GHz, 40 dBi
Gain, 6”
SAG-7138634002-12-S1 is a 6” E-Band Gaussian antenna that operates
from 71 to 86 GHz. The Gaussian antenna delivers a 40 dBi nominal
gain and 1.8-degree typical half-power beamwidth at center frequency.
The antenna supports linear polarized waveforms and employs acorrugated feed horn to offer excellent aperture efficiency, high crosspolarization rejections, and low sidelobe levels. This model is equippedwith a standard WR-12 waveguide with UG-387/U flange as its input
port. By removing the mode transition, model SWT-12110-SB, the input
port becomes a Ø 0.110” circular waveguide, which can support bothlinear and circular polarized waveforms.

Electrical Specifications:Parameter
Frequency

Minimum

TypicalMaximum

71 GHz86 GHz

ECCN
EAR99

Gain

40 dBiFEATURES

3 dB Beamwidth

1.8˚

Sidelobes-20 dB

Polarization

Linear•••Return Loss

15 dB

Specification Temperature+25 ˚COperating Temperature

Center Fed
Low Sidelobes
Low Cross Polarization

APPLICATIONS-40 ˚C+85 ˚C•••

Radar Systems
Communication SystemsPlasma Systems

SUPPLEMENTAL DETAILS

Mechanical Specifications:
ItemSpecification

Antenna PortWR-12 Waveguide with UG-387/U Flange

MaterialAluminum

FinishBlack AnodizedLens Diameter

6.0”

Outline

AG-RE40

www.eravant.com | 424-757-0168 | support@eravant.com
Copyright © 2024 by Eravant

Final Rev 2.1
1/6

SAG-7138634002-12-S1

Simulated Pattern at 71 GHz
50
E plane40

H plane30

Gain (dBi)20100-10-20-30-40-50-180-160-140-120-100-80-60-40-200204060

80100120

140160180

Boresight Angle (Degrees)

Simulated Pattern at 80 GHz
50E plane

40H plane
30

Gain (dBi)20100-10-20-30-40-50-180-160-140-120-100-80-60-40-200204060

80

100

120

140160180

Boresight Angle (Degrees)
www.eravant.com | 424-757-0168 | support@eravant.com
Copyright © 2024 by Eravant

Final Rev 2.1
2/6

SAG-7138634002-12-S1

Simulated Pattern at 86 GHz
60
E planeH plane40

Gain (dBi)200-20-40-60-180-160-140-120-100-80-60-40-20

0204060

80

100

120

140

160

1808485

86

Boresight Angle (Degrees)

Simulated Gain vs Frequency
454443Gain (dBi)4241403938373635717273

7475

76

77

78

7980

818283Frequency(GHz)www.eravant.com | 424-757-0168 | support@eravant.com
Copyright © 2024 by Eravant

Final Rev 2.1
3/6

SAG-7138634002-12-S1

Simulated Sidelobe level vs Frequency
0E plane
H planeSidelobe Level (dB)

-5-10-15-20-25
71

7273

74

75

7677

78

7980

8182

838485

86

80

8182

83

8485

86

Frequency (GHz)

Simulated 3 dB Beamwidth vs Frequency
1.75

3 dB Beamwidth (dB)

1.7

1.65

1.6

1.55

1.5

1.45

1.4
7172

73

74

75

76

77

78

79

Frequency (GHz)www.eravant.com | 424-757-0168 | support@eravant.com
Copyright © 2024 by Eravant

Final Rev 2.1
4/6

SAG-7138634002-12-S1

Measured Return Loss vs Frequency
0-5

Return Loss (dB)

-10-15-20-25-30-35-40
71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

Frequency (GHz)

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

www.eravant.com | 424-757-0168 | support@eravant.com
Copyright © 2024 by Eravant

Final Rev 2.1
5/6

SAG-7138634002-12-S1

Note:
••

All antenna pattern and gain data presented is simulated. Actual data may vary, slightly.
Eravant reserves the right to change the information presented without notice.

Caution:•Foreign objects in the waveguide will affect device performance and may damage the antenna.

www.eravant.com | 424-757-0168 | support@eravant.com
Copyright © 2024 by Eravant

Final Rev 2.1
6/6