High Frequency Ceramic Solutions
868 MHz Antenna for small form factor applications
Detail Specification: 9/7/2016
P/N 0868AT43A0020
Page 1 of 5
General Specifications
Part Number
Frequency Range
Peak Gain
Average Gain
Return Loss
0868AT43A0020
858 - 878 Mhz
-1.0 dBi typ. (XZ-total)
-4.0 dBi typ. (XZ-total)
9.5 dB min.
Input Power
Impedance
Operating Temperature
Reel Quanity
MSL
3W max. (CW)
50 Ω
-40 to +85°C
1,000
1
Part Number Explanation
P/N Suffix
Bulk
T&R
100% Tin
Termination style
Tin / Lead
Packing Style
Suffix = S
eg. 0868AT43A0020S
Suffix = E
eg. 0868AT43A0020E
Suffix = None eg. 0868AT43A0020 (E or S)
Please Consult Factory
Terminal Configuration
Function
Feeding Point
NC
Mechanical Dimensions
In
L
W
T
a
0.276 ± 0.008
0.079 ± 0.008
0.031 + .004/-.008
0.020 ± 0.012
mm
7.00 ± 0.20
2.00 ± 0.20
0.80 + 0.1/-0.2
0.50 ± 0.30
a
W
L
T
No.
1
2
2
1
Mounting Considerations I
Mount these devices with brown
mark facing up. Units: mm
1.0
8.0
6.0
1.0
GND Plane
1.0
18 nH
*
Line width should be designed to
provide 50 Ω impedance matching
characteristics.
*
1.8
3.9 pF
0.3 pF
5.1
0.5
With Matching Circuit
GND Plane
JTI P/Na for Matching Circuit:
**
Cap (0.3pF): 500R07S0R3BV4T
Cap (3.9pF): 500R07S3R9BV4T
Inductor (18nH): L-07C18NJV6T
5.1
3.0
**
Matching circuits,
please read important
note on
Page 2
7.1
Johanson Technology, Inc. reserves the right to make design changes without notice.
All sales are subject to Johanson Technology, Inc. terms and conditions.
www.johansontechnology.com
4001 Calle Tecate • Camarillo, CA 93012 • TEL 805.389.1166 FAX 805.389.1821
Ver 1.8
2016 Johanson Technology, Inc. All Rights Reserved
High Frequency Ceramic Solutions
868 MHz Antenna for small form factor applications
Detail Specification: 9/7/2016
P/N 0868AT43A0020
Page 2 of 5
Mounting Considerations I
Test Board used orderable p/n: 0868AT43A0020-EB1SMA (comes with SMA connector)
40mm
9.5mm
50Feed Line
20mm
)
Antenna
Ground
19mm
No Ground
Note: It is recommended that the designer leave available slots for a "pi" (or shunt-series-
shunt) network. The antenna matching network values above are used when antenna is
monted on Johanson's evaluation board. The matching values on clinet's PCB will be
different. Go to: www.johansontechnology.com/tuning and see how to obtain the new
values. If you need further help, contact our RF Applications Eng Team at:
www.johansontechnology.com/ask-a-question
Return Loss (with matching)
)
Johanson Technology, Inc. reserves the right to make design changes without notice.
All sales are subject to Johanson Technology, Inc. terms and conditions.
www.johansontechnology.com
4001 Calle Tecate • Camarillo, CA 93012 • TEL 805.389.1166 FAX 805.389.1821
Ver 1.8
2016 Johanson Technology, Inc. All Rights Reserved
High Frequency Ceramic Solutions
868 MHz Antenna for small form factor applications
Detail Specification: 9/7/2016
P/N 0868AT43A0020
Page 3 of 5
Mounting Considerations II
We have conducted internal studies to show that the following corner placements provide antenna efficiency
results with minimal detrimental effects.
)
)
)
)
)
11mm
)
)
)
)
10mm
3mm
)
11mm
10mm
3mm
Yellow area-
complete GND
and layer
clearance free
of metal below
and above.
42mm
42mm
GND
50Feed Line
(make sure
proper
calculation are
applied to
achieve this.
GND Plane
26mm
26mm
)
Note:
It is recommended that the designer
leave available slots for a "pi" (or shunt-series-
shunt) network. The antenna matching
network values above are used when antenna
is mounted on Johanson's evaluation board.
The matching values on client’s PCB will be
different. Go to:
www.johansontechnology.com/tuning and see
how to obtain the new values. If you need
further help, such as needing the layout file of
the above, contact our
RF Applications Eng. Team at:
www.johansontechnology.com/ask-a-question
8.0
1.0
6.0
1.0
1.8
5.1
0.5
5.1
3.0
7.1
Johanson Technology, Inc. reserves the right to make design changes without notice.
All sales are subject to Johanson Technology, Inc. terms and conditions.
www.johansontechnology.com
4001 Calle Tecate • Camarillo, CA 93012 • TEL 805.389.1166 FAX 805.389.1821
Ver 1.8
2016 Johanson Technology, Inc. All Rights Reserved
High Frequency Ceramic Solutions
868 MHz Antenna for small form factor applications
Detail Specification: 9/7/2016
P/N 0868AT43A0020
Page 4 of 5
Typical Radiation Performance @ 25°
C using 0868AT43A0020-EB1SMA
)
)
)
)
)
)
)
XY-V/XY-H
Z
180°
)
XY cut @868MHz
Vertical
Horizontal
90°
Y
0°
X
270°
XY-cut scanning direction
XZ-V/XZ-H
Y
180°
X
270°
XZ cut @868MHz
Vertical
Horizontal
90°
Z
0°
XZ-cut scanning direction
)
YZ-V/YZ-H
X
180°
YZ cut @868MHz
Vertical
Horizontal
90°
Z
Y
270°
0°
YZ-cut scanning direction
Johanson Technology, Inc. reserves the right to make design changes without notice.
All sales are subject to Johanson Technology, Inc. terms and conditions.
www.johansontechnology.com
4001 Calle Tecate • Camarillo, CA 93012 • TEL 805.389.1166 FAX 805.389.1821
Ver 1.8
2016 Johanson Technology, Inc. All Rights Reserved
High Frequency Ceramic Solutions
868 MHz Antenna for small form factor applications
Detail Specification: 9/7/2016
P/N 0868AT43A0020
Page 5 of 5
More SMD Chip Antennas at:
www.johansontechnology.com/antennas
)
)
)
Packaging information
)
)
)
)
www.johansontechnology.com/tape-reel-packaging
)
Soldering Information
www.johansontechnology.com/typical-soldering-profile
Antenna layout and tuning techniques (How to obtain the new antenna matching values)
www.johansontechnology.com/tuning
Antenna layout review, tuning, and characterization services
www.johansontechnology.com/ipc-antenna-services
RoHS Compliance
www.johansontechnology.com/rohs-compliance
MSL Info
www.johansontechnology.com/msl-rating
)
Johanson Technology, Inc. reserves the right to make design changes without notice.
All sales are subject to Johanson Technology, Inc. terms and conditions.
www.johansontechnology.com
4001 Calle Tecate • Camarillo, CA 93012 • TEL 805.389.1166 FAX 805.389.1821
Ver 1.8
2016 Johanson Technology, Inc. All Rights Reserved
stm32/stm8
