ANT-2.4-PW-QW Datasheet ANT-2.4-PW-QW, ANT-2.4-PW-QW-UFL | P1-P2

– 1 –

Revised 1/26/15

Product Description

Designed for permanent attachment, PW Series

½ wave whips give outstanding performance in a

rugged and cost-effective package. The antenna

is attached by placing its base through a ¼" (6.35

mm) hole in the product and securing it with a

nut or by threading it into a PEM-style insert. The

antenna is fed through the base with 8.5" (216

mm) of coax cable. Straight-cut RG-174 allows the

addition of any 50-ohm RF connector or allows the

cable to be soldered directly to the PCB, saving

the cost of the connector. It is also available with

1.32 mm coax cable terminated with a U.FL /

MHF compatible connector. This saves the labor

of adding a connector while using one that is small

enough to ﬁt through the antenna’s mounting hole.

Custom lengths and terminations are available by

special order.

Features

• Low cost

• Outstanding performance

• Omni-directional pattern

• Wide bandwidth

• Flexible main shaft

• Rugged & weatherized

• Integral 8.5" (216 mm) RG-174 coax cable or

1.32 mm coax (U.FL)

• Use with plastic or metal enclosures

Electrical Specications

Center Frequency: 2.45GHz

Bandwidth: 2.35–2.60GHz

Wavelength: ½-wave

VSWR: ≤ 1.9 typical at center

Peak Gain: 1.6dBi

Impedance: 50-ohms

Connection: Straight-cut or U.FL/MHF

Cable: 8.5" (216 mm) RG-174 coax

cable or 1.32 mm coax (U.FL)

Oper. Temp. Range: –40°C to +90°C

Electrical speciﬁcations and plots measured on 10.16 cm x 10.16 cm

(4.00" x 4.00") reference ground plane

ANT-2.4-PW-QW-xxx

Data Sheet

Ordering Information

ANT-2.4-PW-QW (with straight cut RG-174 coax)

ANT-2.4-PW-QW-UFL (U.FL/MHF compatible

connector)

216.0 mm

(8.5")

1/4-28

UNF

7.8 mm

(0.31")

13.5 mm

(0.53")

105.0 mm

(4.13")

14.5 mm

(0.57")

7/16"

HEX

End

View

Straight Cut or U.FL

I-PEX silhouette

shown in shadow

5.0 mm

(0.20")

– 2 –

Data Sheet ANT-2.4-PW-QW-xxx

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 will have 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 will be 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.

VSWR Reflected Power

3:1

2:1

1:1

25%

11%

2450MHz 2550MHz2350MHz

1.373

P1-P2

ANT-2.4-PW-QW

Mfr. #:

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Description:

Antennas Permanent Mount 1/2 Wave Whip 2.4GHz

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New from this manufacturer.

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