SAQ-243039-368-S1
K-Band Spot-Focusing Lens Antenna, 24 GHz,3.94” Focal Length
SAQ-243039-368-S1 is a K-Band spot-focusing lensantenna that delivers a 10 dB spot size of 1.15” at the focal
length of 3.94”. The antenna employs a low loss lens to offer
excellent aperture efficiency at 24 GHz. The spot-focusinglens antenna is equipped with a 0.368” diameter circular
waveguide with UG-595/U flange as its antenna port. It
supports linear and circular polarized waveforms.

Electrical Specifications:Parameter

Minimum

FrequencyFocal Length
Spot Size
Power Captured
Spot Size
10 dB Below PeakPower Captured
Spot Size
3 dB Below PeakPower Captured
Polarization
Specification Temperature
Operating Temperature
Peak to First Null

TypicalMaximum
24 GHz3.94” [10 cm]
1.63”
83.8%
1.15”
78.9%
0.67”
47.4%
Linear and Circular+25 °C-45 °C+85 °C

Mechanical Specifications:
Item
Antenna Port

Specification
Ø 0.368” Circular Waveguide with UG-595/U Flange

Horn/Lens Material

Aluminum/HDPE

FinishChem Film

Weight

3.0 OzLens Diameter

2.95”

Dimensions

2.90” (L) x 3.24” (Ø)

OutlineAQ-CK-2.95-C368

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

ECCN
EAR99

FEATURES••Rugged Mechanical Configurations
High Efficiency and Low LossAPPLICATIONS•

Material Property Measurement
Systems

SUPPLEMENTAL DETAILS

Final Rev 1.3

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SAQ-243039-368-S1
Mechanical Outline:
Unless otherwise specified, all dimensions are in inches [millimeters])
3.40 86.5
2.90 73.8

3.24 82.3

0.368 9.3 CIRCULAR WAVEGUIDEW/ UG-595/U FLANGE

SPOT SIZE
DIAMETER
To the First Null4 x 4-40 UNC

POWER
CAPTURED

1.63 in [4.14 cm]

83.8%

10 dB Below the Peak 1.15 in [2.92 cm]
3 dB Below the Peak 0.67 in [1.70 cm]

78.9%
47.4%

0.16[4.1]

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-243039-368-S1
Theoretical Spot Size vs. Frequency
1.6
3 dB Spot Size

1.4

10 dB Spot Size

1.2

Spot Size (inch)

10.8
0.6
0.4
0.2
020

20.5

21

21.5

2222.52323.52424.52525.52626.5Frequency (GHz)

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