SAQ-133075-688-S1
Ku-Band Spot-Focusing Lens Antenna, 13.4 GHz, 7.5”
Focal Length
SAQ-133075-688-S1 is a Ku-Band spot-focusing lensantenna that delivers a nominal 3 dB spot size of 1.00” at the
focal length of 7.5”, and a typical return loss of 15 dB acrossthe frequency range of 12.9 to 13.9 GHz. The antenna
employs a low loss lens to offer excellent aperture efficiency
at 13.4 GHz. The spot-focusing lens antenna is equippedwith a 0.688” diameter circular waveguide with UG-419/U-M
flange as its antenna port. It supports linear and circularpolarized waveforms.

Electrical Specifications:ParameterFrequency
Focal Length
Spot Size
Power Captured
Spot Size
10 dB Below PeakPower Captured
Spot Size
3 dB Below PeakPower Captured
Polarization
Return Loss
Specification Temperature
Operating Temperature
Peak to First Null

Minimum
12.9 GHz

TypicalMaximum
13.4 GHz
13.9 GHz
7.50”
2.40”
83.8%
1.70”
78.9%
1.00”
47.4%
Linear and Circular
15 dB+25 °C-40 °C+85 °C

Mechanical Specifications:
Item
Antenna PortSpecification
Ø 0.688” Circular Waveguide with UG-419/U-M Flange

Horn/Lens Material

Aluminum/HDPE

FinishChem Film

Weight3.16 lbs

Lens Diameter

6.8”

Dimensions

9.39” (L) x 7.45” (Ø)

OutlineAQ-C6-6.8-C688

www.eravant.com | 424-757-0168 | support@eravant.com
Copyright © 2022 by Eravant

ECCN
EAR99

FEATURES••

Rugged Mechanical Configurations
High Efficiency and Low LossAPPLICATIONS••

Scientific Instruments
Material Research Instruments

SUPPLEMENTAL DETAILS

Final Rev 1.3

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SAQ-133075-688-S1
Mechanical Outline:
Unless otherwise specified, all dimensions are in inches [millimeters])

7.45 189.2

8 x 8-32 UNC - 2B

9.39 238.6

0.50 12.7

3.70 94.0

2 x 45°0.688" CIRCULAR WAVEGUIDEW/ UG-419/U-M FLANGE

4.25 108.0

NOTE:
••
•

On condition that test data is provided it is collected from a sample lot. Actual data may vary slightly
from unit to unit. All testing is performed under +25 °C room temperature.
On condition that simulated test data is provided, actual measured data may slightly vary.
Eravant reserves the right to change the information presented without notice.

CAUTION:••••

If a waveguide is present, any foreign objects in the waveguide will cause performance degradationand may damage or destroy the unit.
Any foreign objects in the antenna will cause performance degradation and possible device
damage.
For 1 mm connectors proper torque should be applied: 4.0 ± 0.15 inch-pounds (0.45 ± 0.02 Nm).
Torque wrench model SCH-06004-S1 is highly recommended.
For 1.35 mm, 1.85 mm, 2.4 mm, 2.92 mm, and SMA connectors proper torque should beapplied: 8.0 ± 0.15 inch-pounds (0.90 ± 0.02 Nm). Torque wrench model SCH-08008-S1 is highly
recommended.

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Copyright © 2022 by Eravant

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SAQ-133075-688-S1
Theoretical Spot Size vs Frequency
2
1.8

Spot Size (inch)

1.6
1.4

3 dB Spot Size

1.2

10 dB Spot Size

1
0.8
0.6
0.4
0.2
0

12.9

13

13.1

13.2

13.3

13.4

13.5

13.6

13.7

13.8

13.9

13.5

13.6

13.7

13.8

13.9

Frequency (GHz)

Mesured Return Loss vs. Frequency
0Return Loss (dB)

-10-20-30-40-50-6012.913

13.1

13.2

13.3

13.4

Frequency (GHz)www.eravant.com | 424-757-0168 | support@eravant.com
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SAQ-133075-688-S1
Focal Length Diagram:
Focal Length is defined in the diagram below with a pair of spot-focusing lens antennas
SPOT FOCUSING LENS ANTENNA FOCAL LENGTH DIAGRAM
SPOT FOCUSINGLENS ANTENNASEPARATION DISTANCE = 2 x f
FOCAL POINTff
f = FOCAL LENGTH

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Copyright © 2022 by Eravant

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SPOT FOCUSINGLENS ANTENNA