VJ5301M400MXBSR
www.vishay.com
Vishay Vitramon
Surface Mount Ceramic Chip Antennas for
400 MHz
Document Number:
Revision: 15-Mar-12
www.vishay.com
1
Preliminary Data Sheet
The VJ5301M400 series are small form-factor, high-performance
chip-antennas optimized for industrial, automotive, and medical
applications.
Utilizing unique Vishay™ materials and manufacturing
technologies, these products when properly tuned also comply
with the MBRAI standard for portable communication.
Features
Small outline (35 mm x 5 mm x 1.2 mm)
50Ωunbalanced tuning interface (max. -8.7 gain1)
Assembled onto a PCB in the standard reflow process
120 MHz half-power tuned bandwidth (360 to 480 MHz)
High-reliability ceramic-oxide body construction
Low-RF loss, high-Q ceramic
Lead (Pb)-free / wet build process
Reliable Noble Metal Electrode (NME) system
Compliant to RoHS Directive 2002/95/EC
Halogen-free per IEC 61249-2-21
Wide operating temperature range (-40 °C to + 85 °C)
Applications
Medical Telemetry (internal/external)
Two way radio communication
Land mobile services
Industrial and medical band applications
VJ5301M400MXBSR chip antenna product
Vishay™ VJ5301M400MXBSR chip antennas are covered by
one or more of the following patents:
WO2008250262 (A1), US2008303720 (A1),
US2008305750 (A1), WO2008154173 (A1).
Other patents are pending.
ELECTRICAL SPECIFICATIONS2
Operating Temperature: -40 °C to + 85 °C
Frequency Range (Transmission/Reception): 360 to 480 MHz
DESCRIPTION
The VJ5301M400MXBSR ceramic chip antenna is a small
form-factor, high-performance, chip-antenna designed for
operation at 400. 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.
The VJ5301M400 is the latest in a family of products
developed by Vishay™, a world leader in manufacturing of
discrete and passive components.
QUICK REFERENCE DATA
SERIES
FREQUENCY
(MHz)
MAX. GAIN
(dBi)
AVERAGE GAIN
(dBi)
BANDWIDTH (- 10 dB)
(MHz)
BANDWIDTH (- 3 dB)
(MHz)
VJ5301M400MXBSR
400
- 8.7
- 11.7
48
120
CHIP ANTENNA PERFORMANCE
NOMINAL
FREQUENCY
(MHz)
NOMINAL
IMPEDANCE
(Ω)
400 MHZ
AVERAGE
GAIN
(dBi)
400
MHZ
PEAK
GAIN
(dBi)
REFLECTED
POWER
COEFFICIENT
S11
400 MHZ
REFLECTED
POWER
LOSS
- 3 dB
BANDWIDTH
360 MHz to
480 MHz
- 3 dB
REFLECTED
POWER
LOSS
- 10 dB
BANDWIDTH
386 MHz to
431 MHz
- 10 dB
REFLECTED
POWER
LOSS
400
50
-11.7
-8.7
< - 23 dB
< 0.5 %
120
50 %
45
10 %
< 0.5 %
< 0.02 dB
3 dB
0.46 dB
Table 1 of quick reference data and chip antenna performance
1 See Figures 1 through 6 for more details on the radiation pattern (antenna gain) at 400 MHz; the PCB board ground is shorted to earth ground for tuning.
2 Electrical characteristics at +25 °C unless otherwise specified. Antenna performance is measured at 400 MHz and 50 Ohm impedance unless otherwise
specified. The best results are obtained by mounting the chip following the layout guidelines application note for the evaluation kit.
VJ5301M400MXBSR
www.vishay.com
Vishay Vitramon
Document Number:
Revision: 15-Mar-12
www.vishay.com
2
VJ5301M400MXBSR Tuning
Final tuning configuration and component values for L1, L2, and C1
depend on customer PCB layout. Optimal tuning is possible with
just a few standard components. The nominal values shown are
for a tuned VJ5301M400MXBEK kit.
Figure 1 Tuning example with inductors L1 , L2 and capacitor C1
Figure 2 VJ5301M400 tuned to 400 MHz with > 99% power coupled
Rotation
Plane
φ = 0° Receiver
Direction
XY
Y-axis
YZ
Z-axis
XZ
Z-axis
The radiation patterns reference the elevation θ that is
perpendicular to the azimuth pole rotation in ϕ.
Figure 3 VJ5301M400 PCB mounting and coordinate directions
-35
-30
-25
-20
-15
-10
-5
0 360 380 400 420 440 460 480
Power Reflection S11 dB (50 Ω)
Frequency (MHz)
VJ5301M400
dB
Power Reflection S11 (dB) Versus Frequency (MHz)
>99% Power
Coupled at 400
MHz for
VJ5301M400
MHz
-48
-38
-28
-18
-8
90°
75°
60°
45°
30°
15°
0°
-15°
-30°
-45°
-60°
-75°
-90°
-105°
-120°
-135°
-150°
-165°
180°
165°
150°
135°
120°
105°
XY / ϕ
dBi
Rotation plane / Horiznotal E-field polarization
Figure 4 VJ5301M400MXBSR XY Radiation Pattern
Pole rotation ϕ°
-48
-38
-28
-18
-8
90°
75°
60°
45°
30°
15°
0°
-15°
-30°
-45°
-60°
-75°
-90°
-105°
-120°
-135°
-150°
-165°
180°
165°
150°
135°
120°
105°
YZ / ϕ
dBi
Rotation plane / Horizontal E-field polarization
Figure 5 VJ5301M400MXBSR YZ Radiation Pattern
Pole rotation ϕ°
-48
-38
-28
-18
-8
90°
75°
60°
45°
30°
15°
0°
-15°
-30°
-45°
-60°
-75°
-90°
-105°
-120°
-135°
-150°
-165°
180°
165°
150°
135°
120°
105°
XZ / θ
dBi
Rotation plane / Vertical E-field polarization
Figure 6 VJ5301M400MXBSR XZ Radiation Pattern
Pole rotation ϕ°
Preliminary Data Sheet
VJ5301M400MXBSR
www.vishay.com
Vishay Vitramon
Document Number:
Revision: 15-Mar-12
www.vishay.com
3
Preliminary Data Sheet
FOOTPRINT, MECHANICAL AND PCB DIMENSIONS
The antenna footprint and mechanical dimensions are presented
in Figure 7. Optimal tuning is adjusted according to PCB layout.
For additional mechanical support, it is recommended to add one
drop of heat curing epoxy glue.
The glue dot should not overlap with any of the
soldering pads.
Apply the glue dot at the center of the antenna.
The glue dot area secures the chip firmly to the PCB.
Figure 7 of VJ5301M400 footprint, chip antenna mechanical dimensions, and PCB layout dimensions
VJ5301M400MXBSR
www.vishay.com
Vishay Vitramon
Document Number:
Revision: 15-Mar-12
www.vishay.com
4
Preliminary Data Sheet
Figure 8 Soldering IR Reflow with SnPb Solder
Figure 9 Soldering Reflow with Sn Solder
Figure 10 Soldering IR Reflow with SnAgCu Solder
VJ5301M400 ASSEMBLY GUIDELINES
1. Mounting of antennas on a printed circuit board should
be done by reflow soldering using the profiles shown
(Figures 8, 9, and 10).
2. In order to provide the adequate strength between the
antenna and the PCB apply of a dot of heat cured
epoxy glue in the center of the footprint of the antenna
prior to soldering the antenna to the board. An example
for such glue is Heraeus PD 860002 SA. The weight of
the dot should be 5 mg to10 mg.
ORDERING INFORMATION
VISHAY MATERIAL
PACKAGING QUANTITY
VJ5301M400 Chip Antenna
VJ5301M400MXBSR
1000 pieces
VJ5301M400 Evaluation Kit3
VJ5301M400MXBEK
1 kit
3 The VJ5301M400 Kit is available for evaluation. For samples, please contact mlcc-samples@vishay.com . .
Legal Disclaimer Notice
www.vishay.com
Vishay
Disclaimer
Document Number:
Revision: 15-Mar-12
www.vishay.com
5
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IMPROVE RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
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