ANT-2.4-CW-HWR-zzz Datasheet by Linx Technologies Inc.

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AniennaFactgr LInx
1 Revised 8/1/2017
Product Description
HWR Series ½-wave center-fed dipole antennas
deliver outstanding performance in a rugged and
cosmetically attractive package. The articulating
base allows the antenna to tilt 90 degrees and
rotate 360 degrees. The antenna’s internal
counterpoise eliminates external ground plane
dependence and maximizes performance. HWR
Series antennas attach via a standard SMA or Part
15 compliant RP-SMA connector. Custom colors
and connectors are available for volume OEM
customers.
Features
• Internal counterpoise
• Low cost
• Tilts and rotates
• Omni-directional pattern
• Outstanding VSWR
• Rugged & damage-resistant
• Standard SMA or Part 15 compliant RP-SMA
connector
• Custom colors and terminations for volume
OEMs
• Internal O-ring seal on connector
Electrical Specifications
Center Frequency: 2.4GHz
Recom. Freq. Range: 2.3–2.6GHz
Bandwidth: 300MHz
Wavelength: ½-wave
VSWR: 2.0 typical
Peak Gain: 3.2dBi
Impedance: 50-ohms
Connection: RP-SMA or SMA
Oper. Temp. Range: –30°C to +80°C
Electrical specifications and plots measured with a 10.16 cm x
10.16 cm (4.00” x 4.00”) reference ground plane
ANT-2.4-CW-HWR-ccc
Data Sheet by
Ordering Information
ANT-2.4-CW-HWR-RPS (with RP-SMA connector)
ANT-2.4-CW-HWR-SMA (with SMA connector)
142 mm
(5.59")
116 mm
(4.57")
10 mm
(0.39")
8.2 mm
(0.32")
26 mm
(1.02")
30 mm
(1.18")
Anienna Lir'Ix
2
Copyright © 2017 Linx Technologies
159 Ort Lane, Merlin, OR 97532
Phone: +1 541 471 6256
Fax: +1 541 471 6251
www.linxtechnologies.com
3:1
2:1
1:1
2.3GHz 2.45GHz 2.6GHz
VSWR
25%
11%
0%
Reflected Power1.084
VSWR Graph
What is VSWR?
The Voltage Standing Wave Ratio (VSWR) is a measurement of how well an antenna is matched to a source
impedance, typically 50-ohms. It is calculated by measuring the voltage wave that is headed toward the load
versus the voltage wave that is reflected back from the load. A perfect match has a VSWR of 1:1. The higher
the first number, the worse the match, and the more inefficient the system. Since a perfect match cannot
ever be obtained, some benchmark for performance needs to be set. In the case of antenna VSWR, this
is usually 2:1. At this point, 88.9% of the energy sent to the antenna by the transmitter is radiated into free
space and 11.1% is either reflected back into the source or lost as heat on the structure of the antenna. In
the other direction, 88.9% of the energy recovered by the antenna is transferred into the receiver. As a side
note, since the “:1” is always implied, many data sheets will remove it and just display the first number.
How to Read a VSWR Graph
VSWR is usually displayed graphically versus frequency. The lowest point on the graph is the antenna’s
operational center frequency. In most cases, this is different than the designed center frequency due to
fabrication tolerances. The VSWR at that point denotes how close to 50-ohms the antenna gets. Linx
specifies the recommended bandwidth as the range where the typical antenna VSWR is less than 2:1.
by
ANT-2.4-CW-HWR-ccc Data Sheet

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