SAQ-263079-28-S1
Ka-Band Spot-Focusing Lens Antenna, 26 GHz

SAQ-263079-28-S1 is a Ka-Band spot-focusing lensantenna that delivers a 3 dB spot size of 1.32” at the focal
length of 7.87”. The antenna employs a low loss lens to offer
excellent aperture efficiency at 26 GHz. The spot-focusinglens antenna is equipped with a WR-28 waveguide with UG599/U flange as its antenna port. It supports linear polarized
waveforms.

Electrical Specifications:Parameter

Minimum

Frequency
Frequency Bandwidth
Focal Length
Spot Size
Power CapturedSpot Size
10 dB Below PeakPower Captured
Spot Size
3 dB Below PeakPower Captured
Polarization
Return Loss
Specification Temperature
Operating Temperature
Peak to First Null

Typical26 GHz±500 MHz
7.87”
3.18”
83.8%
2.24”
78.9%
1.32”
47.4%
Linear
14 dB+25 °C-40 °CECCN
EAR99

FEATURES••

Rugged Mechanical Configurations
High Efficiency and Low LossAPPLICATIONS•••

5G Systems
Scientific Instruments
Material Research Instruments+85 °CSUPPLEMENTAL DETAILS

Mechanical Specifications:
Item
Antenna Port

Specification
WR-28 Waveguide with UG-599/U FlangeHorn/Lens Material

Aluminum/HDPE

FinishChem Film

Weight

3.2 OzLens Diameter

2.80”

Dimensions

3.00” (L) x 2.98” (Ø)

OutlineAQ-RA-2.8

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

Maximum

Final Rev 1.3

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SAQ-263079-28-S1
Mechanical Outline:
Unless otherwise specified, all dimensions are in inches [millimeters])
2.98 75.7
CLCL

2.80 71.1

4 x 4-40 UNC

3.00 76.2

0.25 6.4

0.18 4.6
Ka-BAND WAVEGUIDEW/ UG- 599/U FLANGE COMPATIBLE

SPECIFICATIONS @ 26.00 GHz
SPOT SIZE
DIAMETERPOWER
CAPTUREDTo the First Null

3.18 in

83.8%

10 dB Below the Peak

2.24 in

78.9%

3 dB Below the Peak

1.32 in

47.4%

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.

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

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SAQ-263079-28-S1
Theoretical Spot Size vs. Frequency
2.5
3 dB Spot Size
10 dB Spot Size

Spot Size (inch)

2

1.5

1

0.5

026

26.5

2727.5

28

28.5

29

29.5

30

30.5

3131.5

32

32.5

33

Frequency (GHz)

Typical Return Loss vs. Frequency
0-5

Return Loss (dB)

-10-15-20-25-30

25.5

25.6

25.7

25.8

25.9

26Frequency (GHz)www.eravant.com | 424-757-0168 | support@eravant.com
Copyright © 2023 by Eravant

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26.1

26.2

26.3

26.4

26.5

SAQ-263079-28-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 POINTfff = FOCAL LENGTH

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

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SPOT FOCUSINGLENS ANTENNA