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"High Frequency Ceramic Solutions"
2.45 GHz Antenna
Detail Specification: 05/04/10
P/N 2450AT18D0100
Page 1 of 3
General Specifications
Part Number Frequency Range Peak Gain Average Gain Return Loss Operating Temperature Storage Temperature Range 2450AT18D0100 2400 - 2500 Mhz 1.5 dBi typ. (XZ-total) -1.0 dBi typ. (XZ-total) 6.0 dB min. -40 to +85C +5 ~ +35 C, Humidity 45~75%RH, 12 mos. max No. 1 2 3 4 Function Feeding Point GND GND GND 3 4 Terminal Configuration 2 1 Input Power Impedance Reel Quanity 2W max. 50 3,000
Mechanical Dimensions
In
L W T a b 0.126 0.008 0.063 0.008 0.047 0.008 0.012 +.004/-.008 0.020 0.008
mm
3.20 0.20 1.60 0.20 1.20 0.20 0.30 +0.1/-0.2 0.50 0.20 a L b W b T
Mounting Considerations
Mount these devices with brown mark facing up. Units: mm Line width should be designed to provide 50 impedance matching characteristics. Without Matching Circuits Solder Resist Land * 0 Ohm Feeding line Matching 1.0 2.0 2.0 0.6 0.7 0.6
4.1
4.0 Ground No ground
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 2010 Johanson Technology, Inc. All Rights Reserved
"High Frequency Ceramic Solutions"
2.45 GHz Antenna
Detail Specification: 05/04/10
P/N 2450AT18D0100
Page 2 of 3
Typical Electrical Characteristics (T=25oC) Test Board:
) ) ) )
Matching Circuits
) ) ) )
Via
20mm Feeding Line
No Ground
Antenna
Groun 40mm
Return Loss
a) Without Matching Circuits
0
-10 dB(S(1,1))
m1
m1 freq=2.400GHz dB(S(1,1))=-13.935 m2 freq=2.500GHz dB(S(1,1))=-14.774 m2
)
m3 freq=2.450GHz dB(S(1,1))=-24.894
-20 m3
-30 2.0
2.2
2.4 freq, GHz
2.6
2.8
3.0
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 2010 Johanson Technology, Inc. All Rights Reserved
"High Frequency Ceramic Solutions"
2.45 GHz Antenna
Detail Specification: 05/04/10
P/N 2450AT18D0100
Page 3 of 3
Typical Radiation Patterns
) ) )
)
)
)
)
XY-V/XY-H
Z
)
XY cut @2.45GHz Vertical Horizontal
180 90 Y 0 X 270 XY-cut scanning direction
XZ-V/XZ-H
Y 180
XZ cut @2.45GHz Vertical Horizontal
90 Z 0
X 270
XZ-cut scanning direction
)
YZ-V/YZ-H X 180 90
Z
YZ cut @2.45GHz 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 2010 Johanson Technology, Inc. All Rights Reserved

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