"High Frequency Ceramic Solutions"
1.905 GHz Antenna
Detail Specification: 04/10/10
P/N 1905AT45A0050
Page 1 of 3
Recommended application: DECT
General Specifications
Part Number
Frequency Range
Peak Gain
Average Gain
Return Loss
1905AT45A0050
1880 - 1930MHz
0.5 dBi typ (XZ-Total)
-1.1 dBi typ. (XZ-Total)
9.5 dB min.
Input Power
Impedance
Reel Quanity
Operating Temperature
Storage Temperature
2W max.
50
Ω
1,000
-40 to +85°C
+5 to +35°C, Humidity:
45-75%RH, 12 mos. Max
Terminal Configuration
No.
1
2
P/N
Suffix Termination
Style
Packaging
Style
Bulk
T&R
100% Tin
Tin / Lead
Suffix = S
Suffix = E
Suffix = None
Eg. 1905AT45A0050S
Eg. 1905AT45A0050E
Eg. 1905AT45A0050(E or S)
Function
Feeding Point
NC
Please consult Factory
Mechanical Dimensions
In
L
W
T
a
0.374 ± 0.008
0.079 ± 0.008
0.047 +.004/-.008
0.020 ± 0.012
mm
9.50 ± 0.20
2.00 ± 0.20
1.20 +0.1/-0.2
0.50 ± 0.30
L
W
a
T
1
2
Mounting Considerations
Mount these devices with brown mark facing up. Units: mm
*
Line width should be designed to provide 50
Ω
impedance, depending on PCB material and thickness.
2.7nH
GND
7
*
3.3nH
1.3
8.5
GND
2.0
1.3
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
Preliminary
"High Frequency Ceramic Solutions"
P/N 1905AT45A0050
Page 2 of 3
1.905 GHz Antenna
Detail Specification: 04/10/10
Typical Electrical Characteristics (T=25
o
C)
50Ω
Feed Line
)
)
Test Board
)
)
)
40mm
7mm
)
)
)
20mm
Antenna
Return Loss
Ground
19mm
No Ground
a) With matching circuits for 1880~1930MHz
)
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
Preliminary
"High Frequency Ceramic Solutions"
P/N 1905AT45A0050
Page 3 of 3
1.905 GHz Antenna
Detail Specification: 04/10/10
Typical Radiation Patterns
)
)
)
)
)
)
)
XY-V/XY-H
Z
)
XY cut @1.905GHz
Vertical
Horizontal
180°
90°
Y
0°
X
270°
XY-cut scanning direction
XZ-V/XZ-H
Y
180°
XZ cut @1.905GHz
Vertical
Horizontal
90°
Z
0°
X
270°
XZ-cut scanning direction
)
YZ-V/YZ-H
X
180°
90°
Z
YZ cut @1.905GHz
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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