VJ5101W157GXCMT
www.vishay.com
Vishay
Surface Mount Ceramic Chip Antennas for 1.575 GHz
FEATURES
• Small outline (10 mm x 3.2 mm x 0.8 mm)
• 50
unbalanced tuning interface
• Linear polarization
• Assembled onto a PCB in the standard reflow process
• Wide transmit / receive range
• High stability in temperature / humidity changes
• Excellent peak / average gain
VJ5101W157GXCMT chip antenna
• Wide operating temperature range (- 40 °C to + 85 °C)
• Material categorization: For definitions of compliance
please see
www.vishay.com/doc?99912
The VJ5101W157 series are small form-factor,
high-performance chip-antennas optimized for GPS
applications.
Designed for GPS applications, the VJ5101W157GXCMT
antenna shows a superb performance and excellent peak/
average gain, allowing longer ranges than similar GPS patch
antennas.
APPLICATIONS
• GPS L1 band
• Transmission / reception at 1.575 GHz
ELECTRICAL SPECIFICATIONS
Operating temperature: - 40 °C to + 85 °C
Frequency range (transmission / reception): 1575 MHz
± 50 MHz
Note
• Electrical characteristics at + 25 °C unless otherwise specified.
DESCRIPTION
The VJ5101W157GXCMT ceramic chip antenna is a small
form-factor, high-performance, chip-antenna designed for
operation at 1.575 GHz. It allows manufacturers to design
high quality products that do not bear the penalty of a large
external antenna, and is designed to be assembled onto a
PC board using a standard reflow process.
QUICK REFERENCE DATA
SERIES
VJ5101W157GXCMT
FREQUENCY
(MHz)
1575
MAX. GAIN
(dBi)
+ 2.5
AVERAGE GAIN
(dBi)
- 1.60
BANDWIDTH (- 10 dB)
(MHz)
50
BANDWIDTH (- 3 dB)
(MHz)
110
CHIP ANTENNA PERFORMANCE
NOMINAL
NOMINAL
FREQUENCY IMPEDANCE
(MHz)
()
1575
50
1.575 GHz 1.575 GHz 1.575 GHz
1.575 GHz
- 3 dB
- 10 dB
- 3 dB
- 10 dB
PEAK AVERAGE REFLECTED INSERTION
REFLECTED
REFLECTED
BANDWIDTH
BANDWIDTH
GAIN
GAIN
POWER
POWER
POWER
POWER
1.575 GHz
1.575 GHz
(dBi)
LOSS
LOSS
LOSS
LOSS
(dBi)
- 1.60
+ 2.5
< - 15 dB
< 3.2 %
<4%
< 0.14 dB
110
50 %
3 dB
50
10 %
0.46 dB
Revision: 30-Apr-13
Document Number: 45215
1
For technical questions, contact:
chipantenna@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
VJ5101W157GXCMT
www.vishay.com
FOOTPRINT, MECHANICAL, AND PCB DIMENSIONS
The antenna footprint and mechanical dimensions are presented in figure 7. Optimal tuning is adjusted according to PCB layout.
FIGURE
W = 3.2 mm ± 0.2 mm
T = 0.8 mm ± 0.1 mm
Vishay
SYMBOL
DIMENSION (mm)
L
A = 0.8 mm ± 0.1 mm
10 ± 0.20
L = 10 mm ± 0.2 mm
W
3.2 ± 0.20
T
0.80 ± 0.10
A
0.80 ± 0.10
Layout Design
Antenna on Test Board (thickness 0.8 mm)
Revision: 30-Apr-13
Document Number: 45215
2
For technical questions, contact:
chipantenna@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
VJ5101W157GXCMT
www.vishay.com
Vishay
Antenna S11 on Test Board
Antenna VSWR on Test Board
Revision: 30-Apr-13
Document Number: 45215
3
For technical questions, contact:
chipantenna@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
VJ5101W157GXCMT
www.vishay.com
RADIATION PATTERN
Radiation pattern and gain were dependent on measurement board design. The specification of VJ5101W157GXCMT antenna
was measured based on the PCB size and installation position as shown in the below figure test board
Vishay
VERTICAL
Peak Gain = - 6.92 dBi, Average Gain = - 12.58 dBi
HORIZONTAL
Peak Gain = 2.49 dBi, Average Gain = 0.44 dBi
Y-Z
Plane
Average Gain = 0.651 dBi
Peak Gain = 1.27 dBi, Average Gain = - 4.23 dBi
Peak Gain = - 8.51 dBi, Average Gain = - 14.30 dBi
X-Z
Plane
Average Gain = - 3.82 dBi
Peak Gain = 1.42 dBi, Average Gain = - 3.37 dBi
Peak Gain = - 7.87 dBi, Average Gain = - 13.13 dBi
X-Y
Plane
Average Gain = - 2.93 dBi
Revision: 30-Apr-13
Document Number: 45215
4
For technical questions, contact:
chipantenna@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
VJ5101W157GXCMT
www.vishay.com
SOLDERING CONDITION
Typical examples of soldering processes that provide reliable joints without any damage are given in figure 2.
Vishay
PACKAGING
PLASTIC TAPE SPECIFICATIONS
(Dimensions in mm)
A
O
3.40 ± 0.10
B
O
10.20 ± 0.10
ØD
1.50 ± 0.10
T
1.00 ± 0.10
W
24 ± 0.30
E
1.75 ± 0.10
F
11.50 ± 0.10
P
O
4.00 ± 0.10
P
1
8.00 ± 0.10
P
2
2.00 ± 0.10
ORDERING INFORMATION
VJ5101W157 Chip Antenna
VISHAY MATERIAL
VJ5101W157GXCMT
PACKAGING QUANTITY
2000 pieces
Revision: 30-Apr-13
Document Number: 45215
5
For technical questions, contact:
chipantenna@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
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