Preliminary
"High Frequency Ceramic Solutions"
P/N 2500AT43A0100
Page 1 of 4
2.5GHz Chip Antenna (No GND clearance required)
Detail Specification: 01/21/2009
General Specifications
Part Number
Frequency Range
Peak Gain
Average Gain
Return Loss
Impedance
Input Power
2500AT43A0100
2450 - 2550
0.6 dBi typ. (YZ-total)
-2.1 dBi typ. (XZ-total)
3.0 dB min.
50
Ω
2W max.
Operating Temperature
Storage Temperature
Range
Reel Quanity
-40 to +85°C
+5~+35°C,
Humidity 45~75%RH
1,000
Terminal Configuration
No.
1
2
Function
Feeding Point
GND
GND
NC
NC
GND
GND
GND
8
7
6
5
Mechanical Dimensions
In
L
W
T
a1
a2
b1
b2
0.276 ± 0.008
0.079 ± 0.008
0.157 ± 0.008
0.033 ± 0.008
0.039 ± 0.008
0.020 ± 0.008
0.039 ± 0.008
mm
7.00 ± 0.20
2.00 ± 0.20
4.00 ± 0.20
0.85 ± 0.20
1.00 ± 0.20
0.50 ± 0.20
1.00 ± 0.20
L
L
b1
w
a1 a1 a1 a2 a1 a1 a1
b2
T
a1 a1 a1 a2 a1 a1 a1
3
4
5
6
7
8
Mounting Considerations
*Line width should be designed to match 50
Ω
characteristic impedance, depending on PCB
material and thickness
Antenna
Via
1.3
0.4
1.3
50
Ω
Feed line
0.3
1.6
0.4
3.6
0.4
1.6
1.3
0.4
1.3
0.3
1
2
3
4
Units in mm
0.5pF
*
0.5pF
4.7nH
JTI P/N for Matching Circuit:
Inductor (4.7nH):L-14C4N7SV6T
Capacitor (0.5pF): 251R14S0R5V4T
Ground
Matching circuit and component values will be
different, depending on PCB layout
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
2009 Johanson Technology, Inc. All Rights Reserved
"High
Preliminary
Frequency Ceramic Solutions"
P/N 2500AT43A0100
Page 2 of 4
2.5GHz Chip Antenna (No GND clearance required)
Detail Specification: 05/22/08
Mounting Considerations
)
)
Test Board
)
)
)
)
)
40mm
9.5mm
Via
)
Top View
Antenna
50Ω Feed Line
20mm
50Ω Feed Line
40mm
Ground
Matching Circuits
Antenna
Ground
100mm
Bottom View
)
40mm
Ground
100mm
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
2009 Johanson Technology, Inc. All Rights Reserved
"High
Preliminary
Frequency Ceramic Solutions"
P/N 2500AT43A0100
Page 3 of 4
2.5GHz Chip Antenna (No GND clearance required)
Detail Specification: 05/22/08
)
)
Return Loss (With matching)
)
)
Return Loss (Without matching)
0
-5
-10
dB(S(1,1))
-15
-20
-25
m3
-30
2.0
2.2
2.4
2.6
2.8
3.0
m1
freq=2.600GHz
dB(S(1,1))=-7.993
m2
freq=2.700GHz
dB(S(1,1))=-7.910
m3
freq=2.650GHz
dB(S(1,1))=-28.568
m1
)
m2
freq, GHz
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
2009 Johanson Technology, Inc. All Rights Reserved
"High
Preliminary
Frequency Ceramic Solutions"
P/N 2500AT43A0100
Page 4 or 4
2.5GHz Chip Antenna (No GND clearance required)
Detail Specification: 05/22/08
Typical Radiation Patterns
)
)
)
)
)
)
)
XY-V/XY-H
Z
)
XY cut @2.5GHz
Vertical
Horizontal
180°
90°
Y
0°
X
270°
XY-cut scanning direction
XZ-V/XZ-H
Y
180°
XZ cut @2.5GHz
Vertical
Horizontal
90°
Z
0°
X
270°
XZ-cut scanning direction
)
YZ-V/YZ-H
X
180°
90°
Z
YZ cut @2.5GHz
Vertical
Horizontal
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
2009 Johanson Technology, Inc. All Rights Reserved
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