TE Connectivity Linx ANT-2.4-WRT-CCC User manual

DATA AND DEVICES / ANT-2.4-WRT-CCC
ANT-2.4-WRT-CCC
2.4 GHz External Panel-Mount Antenna
The ANT-2.4-WRT is a low-profile, panel-mount dipole antenna designed for 2.4 GHz ISM frequency band applications such as
Bluetooth® and ZigBee®.
The ANT-2.4-WRT antenna’s compact size allows it to be mounted in applications requiring a low profile and external antenna
performance, such as wireless vending and trac control equipment.
The ANT-2.4-WRT antenna is designed with an integrated counterpoise that eliminates the need for additional ground plane in the
product, making it ideal for applications with non-conductive or RF transparent enclosures.
Connector options for the ANT-2.4-WRT antenna are: SMA plug (male pin), RP-SMA plug (female socket), MHF1/U.FL-type plug
(female socket), or MHF4-type plug (female socket).
FEATURES
ORDERING INFORMATION
APPLICATIONS
• Performance at 2.4 GHz
– VSWR: ≤1.5
– Peak Gain: 9.1 dBi
– Eciency: 66%
• Low-profile
– Height: 10.0 mm (0.40 in)
– Diameter: 19.0 mm (0.75 in)
• Mounts permanently with pressure sensitive
adhesive ring and provided nut
• Single-band WiFi/WLAN/802.11
– WiFi 4
• 2.4 GHz ISM applications
– Bluetooth®
– ZigBee®
• U-NII and ISM applications
• Internet of Things (IoT) devices
• Smart Home networking
• Sensing and remote monitoring
Part Number Description
ANT-2.4-WRT-UFL-100 Antenna, 100 mm (3.94 in) of 1.32 mm coaxial cable, MHF1/U.FL-type plug (female socket)
ANT-2.4-WRT-UFL-150 Antenna, 150 mm (5.91 in) of 1.32 mm coaxial cable, MHF1/U.FL-type plug (female socket)
ANT-2.4-WRT-UFL Antenna, 216 mm (8.50 in) of 1.32 mm coaxial cable, MHF1/U.FL-type plug (female socket)
ANT-2.4-WRT-MHF4 Antenna, 216 mm (8.50 in) of 1.13 mm coaxial cable, MHF4-type plug (female socket)
ANT-2.4-WRT-RPS Antenna, 216 mm (8.50 in) of RG-174 coaxial cable, RP-SMA plug (female socket)
ANT-2.4-WRT-SMA-150 Antenna, 150 mm (5.91 in) of RG-174 coaxial cable, SMA plug (male pin)
ANT-2.4-WRT-SMA Antenna, 216 mm (8.50 in) of RG-174 coaxial cable, SMA plug (male pin)
Available from Linx Technologies and select distributors and representatives.

2DATA AND DEVICES / ANT-2.4-WRT-CCC
TABLE 1. ELECTRICAL SPECIFICATIONS
TABLE 2. MECHANICAL SPECIFICATIONS
Parameter Value
Polarization Linear
Radiation Omnidirectional
Max Power 5W
Wavelength 1/2-wave
Electrical Type Dipole
Impedance 50 Ω
Operating Temp. Range -40 °C to +90 °C
Dimensions Height: 10.0 mm (0.40 in), Diameter: 19.0 mm (0.75 in)
Part Number Connection Coaxial Cable, minimum inside bend
radius Weight
ANT-2.4-WRT-UFL MHF1/U.FL-type plug 1.32 mm: 6.0 mm (0.24 in)
100 mm = 4.6 g (0.16 oz)
150 mm = 4.9 g (0.17 oz)
216 mm = 5.2 g (0.18 oz)
ANT-2.4-WRT-MHF4 MHF4-type plug 1.13 mm: 5.0 mm (0.20 in) 216 mm = 5.1 g (0.18 oz)
ANT-2.4-WRT-RPS RP-SMA plug RG-174: 10.2 mm (0.40 in) 216 mm = 7.0 g (0.25 oz)
ANT-2.4-WRT-SMA SMA plug RG-174: 10.2 mm (0.40 in) 150 mm = 6.1 g (0.22 oz)
216 mm = 7.0 g (0.25 oz)
Electrical specifications and plots measured with a 102 mm x 102 mm (4.0 in x 4.0 in) reference ground plane.
PACKAGING INFORMATION
The ANT-2.4-WRT antenna is placed in a clear plastic sleeve and sealed in clear plastic bags in quantities of 50 pcs. Bags are
packaged in cartons of 250 (5 bags). Distribution channels may oer alternative packaging options.
ANT-2.4-WRT 2.4 GHz
Frequency Range 2.4 GHz to 2.5 GHz
VSWR (max) 1.5
Peak Gain (dBi) 9.1
Average Gain (dBi) -2.0
Eciency (%) 66
Figure 1. ANT-2.4-WRT Series Antenna Dimensions
PACKAGING INFORMATION
Figure 1 provides dimensions for the ANT-2.4-WRT series antenna.

3DATA AND DEVICES / ANT-2.4-WRT-CCC
Free Space Center of Ground Plane
ANTENNA ORIENTATION
The ANT-2.4-WRT antenna is characterized in two antenna orientations as shown in Figure 3. The antenna in free space
characterizes use of an antenna attached to an enclosure-mounted connector which is connected by cable to a printed circuit
board. Although the antenna is a dipole not requiring a ground plane for function, characterization with an adjacent ground plane
(102 mm x 102 mm) provides insight into antenna performance when attached directly to a printed circuit board mounted
connector. The two orientations represent the most common end-product use cases.
Figure 3. ANT-2.4-WRT Series Antenna Test Orientations
Figure 2. ANT-2.4-WRT Series Antenna Recommended Enclosure Mounting Dimensions
RECOMMENDED MOUNTING
The recommended enclosure mounting dimensions are shown in Figure 2. The ANT-2.4-WRT series antenna is supplied with an
integrated closed-cell pressure sensitive adhesive ring which helps seal enclosures against external elements. The adhesive ring has
a protective plastic backing that must be removed prior to installation. A pull tab has been provided for easy removal of the
protective backing. The antenna can be permanently mounted using the provided nut which should be tightened to 4.0 kgf/cm (5
in/ lbs) max. The recommended maximum enclosure wall thickness is 4.70 mm (0.188 in).
Figure 4.ANT-2.4-WRT in Free Space, No Ground Plane
FREE SPACE, NO GROUND PLANE
The charts on the following pages represent data taken with the antenna oriented in free space without a ground plane, as shown
in Figure 4.

4DATA AND DEVICES / ANT-2.4-WRT-CCC
VSWR
Figure 5 provides the voltage standing wave ratio (VSWR) across the antenna bandwidth. VSWR describes the power reflected from
the antenna back to the radio. A lower VSWR value indicates better antenna performance at a given frequency. Reflected power is
also shown on the right-side vertical axis as a gauge of the percentage of transmitter power reflected back from the antenna.
Figure 5. ANT-2.4-WRT VSWR, Free Space
RETURN LOSS
Return loss (Figure 6), represents the loss in power at the antenna due to reflected signals. Like VSWR, a lower return loss value
indicates better antenna performance at a given frequency.
Figure 6. ANT-2.4-WRT Return Loss, Free Space
2400 2500
0
10
20
30
40
1
2
3
4
5
2400 2410 2420 2430 2440 2450 2460 2470 2480 2490 2500
Reflected Power (%)
VSWR
Frequency (MHz)
2400 2500
-20
-18
-16
-14
-12
-10
-8
-6
-4
-2
0
2400 2410 2420 2430 2440 2450 2460 2470 2480 2490 2500
Return Loss (dB)
Frequency (MHz)

5DATA AND DEVICES / ANT-2.4-WRT-CCC
PEAK GAIN
The peak gain across the antenna bandwidth is shown in Figure 7. Peak gain represents the maximum antenna input power
concentration across 3-dimensional space, and therefore peak performance at a given frequency, but does not consider any
directionality in the gain pattern.
Figure 7. ANT-2.4-WRT Peak Gain, Free Space
AVERAGE GAIN
Average gain (Figure 8), is the average of all antenna gain in 3-dimensional space at each frequency, providing an indication of
overall performance without expressing antenna directionality.
Figure 8. ANT-2.4-WRT Antenna Average Gain, Free Space
2400 2500
-20
-15
-10
-5
0
5
10
2400 2410 2420 2430 2440 2450 2460 2470 2480 2490 2500
Peak Gain (dBi)
Frequency (MHz)
2400 2500
-20
-15
-10
-5
0
5
10
2400 2410 2420 2430 2440 2450 2460 2470 2480 2490 2500
Average Gain (dBi)
Frequency (MHz)

6DATA AND DEVICES / ANT-2.4-WRT-CCC
RADIATION EFFICIENCY
Radiation eciency (Figure 9), shows the ratio of power delivered to the antenna relative to the power radiated at the antenna,
expressed as a percentage, where a higher percentage indicates better performance at a given frequency.
Figure 9. ANT-2.4-WRT Series Antenna Radiation Eciency, Free Space
2400 2500
0
10
20
30
40
50
60
70
80
90
100
2400 2410 2420 2430 2440 2450 2460 2470 2480 2490 2500
Efficiency (%)
Frequency (MHz)

7DATA AND DEVICES / ANT-2.4-WRT-CCC
RADIATION PATTERNS
RADIATION PATTERNS - FREE SPACE
Radiation patterns provide information about the directionality and 3-dimensional gain performance of the antenna by plotting gain
at specific frequencies in three orthogonal planes. Antenna radiation patterns for a free space orientation are shown in Figure 10
using polar plots covering 360 degrees. The antenna graphic at the top of the page provides reference to the plane of the column of
plots below it. Note: when viewed with typical PDF viewing software, zooming into radiation patterns is possible to reveal fine detail.
2400 MHz TO 2500 MHz (2450 MHz)
XZ-Plane Gain YZ-Plane Gain XY-Plane Gain
XZ-Plane Gain YZ-Plane Gain XY-Plane Gain
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
5
10
1
23
4
5
6
7
8
9
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35 36
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
5
10
1
23
4
5
6
7
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9
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35 36
2400 MHz
2450 MHz
2500 MHz
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
5
10
1
23
4
5
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9
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22
23
24
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30
31
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34
35 36
Figure 10. ANT-2.4-WRT Antenna Radiation Patterns, Free Space

8DATA AND DEVICES / ANT-2.4-WRT-CCC
Figure 11. ANT-2.4-WRT Series Antenna at Center of Ground Plane
CENTER OF GROUND PLANE
The charts on the following pages represent data taken with the antenna oriented at the center of the ground plane, as shown in
Figure 11.
VSWR
Figure 12 provides the voltage standing wave ratio (VSWR) across the antenna bandwidth. VSWR describes the power
reflected from the antenna back to the radio. A lower VSWR value indicates better antenna performance at a given frequency.
Reflected power is also shown on the right-side vertical axis as a gauge of the percentage of transmitter power reflected back
from the antenna.
Figure 12. ANT-2.4-WRT Antenna VSWR at Center of Ground Plane
2400 2500
0
10
20
30
40
1
2
3
4
5
2400 2410 2420 2430 2440 2450 2460 2470 2480 2490 2500
Reflected Power (%)
VSWR
Frequency (MHz)

9DATA AND DEVICES / ANT-2.4-WRT-CCC
RETURN LOSS
Return loss (Figure 13), represents the loss in power at the antenna due to reflected signals. Like VSWR, a lower return loss value
indicates better antenna performance at a given frequency.
Figure 13 ANT-2.4-WRT Return Loss at Center of Ground Plane
PEAK GAIN
The peak gain across the antenna bandwidth is shown in Figure 14. Peak gain represents the maximum antenna input power
concentration across 3-dimensional space, and therefore peak performance at a given frequency, but does not consider any
directionality in the gain pattern.
Figure 14. AANT-2.4-WRT Peak Gain at Center of Ground Plane
2400 2500
-20
-18
-16
-14
-12
-10
-8
-6
-4
-2
0
2400 2410 2420 2430 2440 2450 2460 2470 2480 2490 2500
Return Loss (dB)
Frequency (MHz)
2400 2500
-20
-15
-10
-5
0
5
10
2400 2410 2420 2430 2440 2450 2460 2470 2480 2490 2500
Peak Gain (dBi)
Frequency (MHz)

10DATA AND DEVICES / ANT-2.4-WRT-CCC
AVERAGE GAIN
Average gain (Figure 15), is the average of all antenna gain in 3-dimensional space at each frequency, providing an indication of
overall performance without expressing antenna directionality.
Figure 15. ANT-2.4-WRT Antenna Average Gain at Center of Ground Plane
RADIATION EFFICIENCY
Radiation eciency (Figure 16), shows the ratio of power delivered to the antenna relative to the power radiated at the antenna,
expressed as a percentage, where a higher percentage indicates better performance at a given frequency.
Figure 16. ANT-2.4-WRT Antenna Radiation Eciency at Center of Ground Plane
2400 2500
-20
-15
-10
-5
0
5
10
2400 2410 2420 2430 2440 2450 2460 2470 2480 2490 2500
Average Gain (dBi)
Frequency (MHz)
2400 2500
0
10
20
30
40
50
60
70
80
90
100
2400 2410 2420 2430 2440 2450 2460 2470 2480 2490 2500
Efficiency (%)
Frequency (MHz)

11DATA AND DEVICES / ANT-2.4-WRT-CCC
RADIATION PATTERNS
RADIATION PATTERNS - CENTER OF GROUND PLANE
Radiation patterns provide information about the directionality and 3-dimensional gain performance of the antenna by plotting gain
at specific frequencies in three orthogonal planes. Antenna radiation patterns are shown in Figure 17 using polar plots covering 360
degrees. The antenna graphic at the top of the page provides reference to the plane of the column of plots below it. Note: when
viewed with typical PDF viewing software, zooming into radiation patterns is possible to reveal fine detail.
2400 MHz TO 2500 MHz (2450 MHz)
XZ-Plane Gain YZ-Plane Gain XY-Plane Gain
XZ-Plane Gain YZ-Plane Gain XY-Plane Gain
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
5
1
23
4
5
6
7
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35 36
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
5
1
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4
5
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7
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35 36
2400 MHz
2450 MHz
2500 MHz
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
5
1
23
4
5
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35 36
Figure 17. ANT-410-WRT Radiation Patterns, Center of Ground Plane

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DATA AND DEVICES / ANT-2.4-WRT-CCC