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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 2W max. Operating Temperature Storage Temperature Range Reel Quanity
-40 to +85C +5~+35C, 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 characteristic impedance, depending on PCB material and thickness
Antenna Via 1.3 0.4 1.3 50 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
50 Feed Line
20mm
50 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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