SPECIFICATION
Part No.
:
WLP.2450.25.4.A.02
Product Name
:
2450MHz Patch Antenna
Features
:
5dBi Peak gain
Pin Type
Automotive TS16949 Production and Quality
Approved
25mm*25mm*4.5mm
ROHS Compliant
Photo
:
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1.
Introduction
This WLP.25 patch antenna for ISM, Wi-Fi, Bluetooth and Zigbee is based on smart
XtremeGain™ technology. It is mounted via pin and double-sided adhesive and has been
selected as optimal solution for the 50*50mm ground plane. This passive patch offers typical
gain response from 2.5 dBi and a higher gain can be achieved, depending on the Ground
Plane, the space available and clearance afforded. The WLP.25’s high gain performance is a
perfect solution for metering and remote monitoring applications; it can deliver longer range
than smaller chip antennas.
Many module manufacturers specify peak gain limits for any antennas that are to be connected
to that module. Those peak gain limits are based on free-space conditions. In practice, the
peak gain of an antenna tested in free-space can degrade by at least 1 or 2dBi when put inside
a device. So ideally you should go for a slightly higher peak gain antenna than mentioned on
the module specification to compensate for this effect, giving you better performance.
Upon testing of any of our antennas with your device and a selection of appropriate layout,
integration technique, or cable, Taoglas can make sure any of our antennas’ peak gain will be
below the peak gain limits. Taoglas can then issue a specification and/or report for the selected
antenna in your device that will clearly show it complying with the peak gain limits, so you can
be assured you are meeting regulatory requirements for that module.
For example, a module manufacturer may state that the antenna must have less than 2dBi
peak gain, but you don’t need to select an embedded antenna that has a peak gain of less than
2dBi in free-space. This will give you a less optimized solution. It is better to go for a slightly
higher free-space peak gain of 3dBi or more if available. Once that antenna gets integrated into
your device, performance will degrade below this 2dBi peak gain due to the effects of GND
plane, surrounding components, and device housing. If you want to be absolutely sure, contact
Taoglas and we will test. Choosing a Taoglas antenna with a higher peak gain than what is
specified by the module manufacturer and enlisting our help will ensure you are getting the
best performance possible without exceeding the peak gain limits.
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2. Key Antenna Performance Indicators
Original Patch Specification tested on 50*50mm ground plane
No
Parameter
Specification
Notes
with 50*50mm
1
Center Frequency
2482MHz
GND Plane
2
Bandwidth
85 MHz min
Return Loss ≤-10dB
3
VSWR
2.0 max
Center Frequency
4
Gain at Zenith
+5.0dBic typ.
Center Frequency
5
Gain at 10° Elevation
-1.0dBic typ.
Center Frequency
6
Axial Ratio
3 dB Max
Center Frequency
7
Polarization
Broadly Linear
8
Impedance
50Ω
9
Frequency Temp Coefficient (Tf)
0±20ppm/°C
10
Operating Temperature
-40°C to +105°C
-40°C to +105°C
*Changes in user groundplane and environment will have an effect on the antennas
performance
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3.
Mechanical Specifications
3.1 Dimensions and Drawing
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3.2 Layout Dimensions
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3.3Ground Plane Dimension
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3.4 Test Fixture Antenna & Performance Measurements
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4. Performance Measurement
4.1 Antenna S11(Return Loss)
4.2 VSWR
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4.3 Antenna Smith Chart (Impedance)
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4.4 Efficiency
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4.5 Antenna Gain
XZ Plane
YZ Plane
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XY Plane
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5. Packaging
Per Tray: 50 pieces
Per Carton(Inside Box) – 4 Trays = 200 pieces
Outer Carton (Outside Box)– 4 Cartons = 800 pieces
50
pieces
per Tray
4 Tray’s
per
carton
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Taoglas makes no warranties based on the accuracy or completeness of the contents of this document and reserves
the right to make changes to specifications and product descriptions at any time without notice. Taoglas reserves all
rights to this document and the information contained herein.
Reproduction, use or disclosure to third parties without express permission is strictly prohibited.
Copyright © Taoglas Ltd.
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