SGP.15a
Specification
Part No.
SGP.1575.15.4.A.02
Product Name
GPS SMT Patch Antenna
Feature
15mm*15mm*4.5mm
1575MHz Centre Frequency
Patent Pending
RoHS Compliant
SPE-11-8-137/E/SS
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page 1 of 12
1. Introduction
This ceramic GPS patch antenna is based on smart
XtremeGain
TM
technology. It is
mounted via SMT process and has been selected as optimal solution for the 45x45mm
ground plane.
2. Specification
Original Patch Specification tested on 45mm ground plane
NO
1
2
3
4
5
6
7
8
9
10
11
PARAMETER
Range of Receiving Frequency
Center Frequency
Bandwidth
VSWR
Gain at Zenith
Gain at 10°elevation
Axial Ratio
Polarization
Impedance
Frequency Temperature Coefficient (
t
f)
Operating Temperature
SPECIFICATION
1575.42 MHz ± 1.023 MHZ
1575.42 ± 3MHz
6MHz min
1.5 max
+1.0 dBic typ.
-
3.0 dB max
RHCP
50 Ohms
0 ± 20ppm / °C
-40°C to +85°C
-40°C to +85°C
With 45*45mm Ground Plane
Return Loss ≤-10 dB
NOTES
**Changes in user groundplane and environment will offset centre frequency
SPE-11-8-137/E/SS
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3. Electrical Specifications
3.1 Return Loss, SWR, Impedance, measured on the test fixture
27 May 2009
CH1 RFL LOG
CH3 RFL 1 U F8
*
5 dB / REF 0 dB
1: 31.552 Ω -7.8398 Ω
1:-12.229 dB
12.886 pF
09:19:09
1 575.420 000 MHz
CH1 Markers
Cor
BW:
4.843399 MHz
Q: 325.23
1 loss: -12.229 dB
Cor
3
2
> >
1.57542 GHz
1
4
cent: 1575.228894 MHz
1
4
3
2
CH3 Markers
2: 31.505 Ω
-7.6631 Ω
1.57522 GHz
3: 27.301 Ω
-9.5859 Ω
1.57280 GHz
4: 26.695 Ω
-7.0801 Ω
1.57765 GHz
Center 1 575.420 000 MHz
Span 100.000 000 MHz
SPE-11-8-137/E/SS
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itial Design
Kiwi
2011/11/2
mend Dimension By 0.5 to 1.0
Jaosn
2012/3/1
4. Mechanical Specifications
4.1 Dimensions and Drawing
Side
B
Bottom
NOTE:
NOTE:
1.
Solder mask.
1.Solder mask
2.Area
be soldered.
2.
Area to
to be soldered
3.Clearance area
3.
Clearance area.
4.Diemension of
Ohm CPW dependent
4.
Dimension of 50
50 Ohm CPW dependent on
individual board.
on individual board.
5.Must
soldered to complete
antenna
5.
Must be
be soldered to complete
antenna
feed
connection.
feed connection.
Name
1
2
SGP.15 Patch 15x15x4
SGP.15 PCB
Part No.
SGP.15
Material
Ceramic
FR4 0.5t
Finish
Clear
Green
Quantity
1
1
Name
1
2
SGP.12 Patch 12x12x4
SGP.12 PCB
Part no.
SGP.12
Material
Ceramic
FR 0.5t
Finish
Clear
Green
QTY
1
1
TW Design Centre
TW Design Centre
This drawing and its inherent design concepts are property of Taoglas. Not to
This drawing and its inherent design concepts are property of Taoglas. Not to
be copied or given to third parties without the written consent of Taoglas.
be copied or given to third parties without the written consent of Taoglas.
SPE-11-8-137/E/SS
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page 4 of 12
4.2
Antenna Footprint
Top Copper
4.2.1
SPE-11-8-137/E/SS
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page 5 of 12