"High Frequency Ceramic Solutions"
1575MHz GPS Ultra-Compact Ceramic Chip Antenna
Detail Specification:
9/24/2012
P/N 1575AT44A0010
Page 1 of 4
General Specifications
Part Number
Frequency Range
Peak Gain (XZ-total)
Average Gain (XZ-total)
Return Loss
1575AT44A0010
1570~1580 MHz
0.5 dBi typ.
-2.0 dBi typ.
9.5 dB min.
Input Power
Impedance
Reel Quanity
Operating Temperature
Storage Temperature
2W max.
50
Ω
1000
-40 to +85°C
+5 to +35°C, Humidity: 45-
75%RH, 18 mos. Max
Packaging
Style
P/N
Suffix Termination
Style
Bulk
T&R
100% Tin
Tin / Lead
Suffix = S
Suffix = E
Suffix = None
Eg. 1575AT44A0010S
Eg. 1575AT44A0010E
Eg. 1575AT44A0010(E or S)
Terminal Configuration
No.
1
2
3
4
Function
GND
NC
NC
GND
NC
NC
Feeding
GND
3
2
1
Please consult Factory
1575AT44A0010-EB1SMA
EVB with SMA Connector
Mechanical Dimensions
In
L
W
T
a1
a2
b
c
g
p
5
mm
4.50 ± 0.30
3.10 ± 0.30
1.50 ± 0.10
0.55 ± 0.20
2.00 ± 0.20
0.1 min
0.30 +0.1/-0.2
1.10 ± 0.15
1.65 ± 0.20
g
b
L
a1
p
T
a
c
W
6
7
8
0.177 ± 0.012
0.122 ± 0.012
0.059 ± 0.004
0.022 ± 0.008
0.079 ± 0.008
0.004 min
0.012 +.004/-.008
0.043 ± 0.006
0.065 ± 0.008
4
8
5
6
7
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
2012 Johanson Technology, Inc. All Rights Reserved
"High Frequency Ceramic Solutions"
1575MHz GPS Ultra-Compact Ceramic Chip Antenna
Detail Specification:
P/N 1575AT44A0010
Page 2 of 4
9/24/2012
Mounting Considerations
*
Line width should be designed to match 50characteristic impedance, depending on PCB material and thickness.
Without Matching Circuits - Units in mm
7.00
No ground area
Via
0.50
1.00
0.825
Ground
6.00
0.65
1.00
0.65
0 Ohm**
1.00
0.65
0.275
Feeding line
1.00
1.00
0.325
1.95
0.325
1.00
)
`
)
Solder Resist
Land
**When doing the layout of your PCB make sure you leave place holders for a "shunt-series-shunt" (Pi) matching
network in your preferred case size. For any further questions, contact our engineering support team at:
http://www.johansontechnology.com/en/ask-a-technical-question.html
www.johansontechnology.com
4001 Calle Tecate • Camarillo, CA 93012 • TEL 805.389.1166 FAX 805.389.1821
2012 Johanson Technology, Inc. All Rights Reserved
"High Frequency Ceramic Solutions"
1575MHz GPS Ultra-Compact Ceramic Chip Antenna
Detail Specification:
P/N 1575AT44A0010
Page 3 of 4
9/24/2012
Typical Electrical Characteristics (T=25
o
C)
Test Board - (units in mm)
)
Via
No ground
7.5
50
Ground
6
Antenna
0 Ohm
Test Board p/n: 1575AT44A0010‐EB1SMA
100
Typical Return Loss:
0
m1
freq=1.570GHz
dB(S(1,1))=-15.811
m2
freq=1.580GHz
dB(S(1,1))=-21.451
m3
freq=1.575GHz
dB(S(1,1))=-28.248
dB(S(1,1))
-10
m1
-20
m2
m3
-30
1.0
1.2
1.4
freq, GHz
1.6
1.8
2.0
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
2012 Johanson Technology, Inc. All Rights Reserved
Preliminary
"High Frequency Ceramic Solutions"
P/N 1575AT44A0010
Page 4 of 4
1575MHz GPS Ultra-Compact Ceramic Chip Antenna
Detail Specification:
9/24/2012
Typical Radiation Patterns
)
)
)
XY-V/XY-H
)
)
)
Z
180°
XY cut @1.575GHz
Vertical
Horizontal
)
)
90°
Y
0°
X
270°
XY-cut scanning direction
XZ-V/XZ-H
Y
180°
XZ cut @1.575GHz
Vertical
Horizontal
90°
Z
0°
X
270°
XZ-cut scanning direction
)
YZ-V/YZ-H
X
180°
90°
Z
YZ cut @1.575GHz
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
2012 Johanson Technology, Inc. All Rights Reserved
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