AGPSF.36C.07.0100C [TAOGLAS]
Taoglas Sure Technology;
| 型号： | AGPSF.36C.07.0100C |
| 厂家： | 
Taoglas |
| 描述： | Taoglas Sure Technology |
| 文件： | 总23页 (文件大小：1623K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Specification
Part No.
:
:
AGPSF.36C.07.0100C
Product Name
Taoglas Sure Technology
Embedded Active GPS L1/L2 Stacked Patch Antenna
with 100mm 1.37 coax cable and IPEX MHFHT
Features
:
GPS L1 & L2 Band Operation
Low Noise Figure
Excellent Out-Of-Band Rejection
Low Axial Ratio
2 Stage LNA and SAW filter
Cable: 100mm 1.37 Coaxial Cable
Connector: IPEX MHFHT
Dims: 35*35*11.1mm
RoHS Compliant
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Introduction
The Taoglas AGPSF.36C, with Taoglas Sure Technology, is an active, embedded
stacked patch, GPS antenna supporting both L1 and L2 bands. It is a high performance,
economical solution for the highest accuracy centimeter-level tracking applications.
Typical applications include:
- UAVs and Robotics
- Marine
- Transportation
- Agriculture
- Autonomous Vehicles
- Navigation
- RTK
This compact antenna exhibits excellent radiation patterns on both L1 and L2 bands
and with a low noise figure to preserve signal quality helps minimize time to first fix.
It also features excellent out-of-band rejection to prevent out-of-band signals from
overdriving or damaging its LNAs.
The AGPSF.36C features very tight Phase Centre Offset (PSO) at just ±2cm at the L1
Band and ±5cm at the L2. The precision of antenna phase center directly affects the
accuracy of GNSS positioning systems and can ensure that the accuracy of the
receiver really is cm level. See section 3.1.2 for more information and results.
This antenna has been tuned and tested on a 70 X 70 mm ground plane, working at
GPS L1, 1575.42 MHz and L2, 1227.6MHz, with a 2 stage LNA ensuring good signal
strength. It can operate with an input voltage ranging from 1.8 to 5 volts.
Cables and connectors are customizable. Patch antennas can also be tuned to
customer-specific device environments, subject to NRE and MOQ. Contact your
regional Taoglas sales office to request these services or additional support to
integrate and test this antenna’s performance in your device.
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Specification
GNSS Systems Covered
GLONASS
L1OF
GLONASS
GPS L5
B2a/E5a
GPS L1C/A
BeiDou B1I
E6/B3
L2OF
GPS L2C
B2I/E5b
x
x
x
x
x
x
GPS L1 & L2 Antenna *
GPS L1
GPS L2
1575.42MHz
<-10
1226.7MHz
<-10
Center Frequency
Return loss (dB)
Efficiency (%)
Peak Gain (dBi)
Axial Ratio at Zenith
Impedance
68.74
64.16
3.57
2.73
<1.5dB
<5dB
50 Ω
RHCP
Polarization
*Tested on 70x70 cm ground plane
LNA and Filter Electrical Properties
GPS L1 :1575.42±1.023 MHz
Center Frequency
GPS L2:1226.7±1.023MHz
+2dBm Typ (1575.42MHz)
-2dBm Typ(1226.7MHz)
50 Ohm
Pout 1dB gain
Compression point
Output Impedance
Return loss (dB)
<-10 dB
LNA Gain, Power Consumption and Noise Figure
1.8V (MIN)
20dB
3V (TYP)
20dB
5.5V (MAX)
LNA Gain
L1
L2
L1
L2
20dB
21dB
2.6dB
3.0dB
16mA
21dB.
21dB
Noise Figure
2.6dB
2.6dB
3.0dB
3.0dB
Current Consumption
16mA
16mA
100MHz~1180Mhz
1280MHz~1520MHz
1620MHz~6000MHz
40dB
30dB
45dB
Outer Band Attenuation
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Mechanical
Dimensions
Cable
35x35x11mm
Coaxial Cable Ø1.37 ± 0.1mm, length 100mm
Connector
Weight
IPEX MHFI (U.FL)
32g
Environmental
Operation Temperature
Storage Temperature
Humidity
-40°C to 85°C
-40°C to 85°C
Non-condensing 40°C 95% RH
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Antenna Characteristics
3.1.1 Block Diagram (Active Antenna)
3.1.2
Phase Centre Offset
The antenna reference point (ARP) is defined as the intersection of antenna’s vertical
axis of symmetry with the bottom of the antenna. The antenna reference point is
typically the point on the center-line of the antenna at the mounting surface. Above
the antenna reference point is the mechanical antenna phase center, this is the
physical point on the surface of the antenna element where the antenna phase is
located. The actual antenna phase center are points in space, typically above the
mechanical antenna phase center.
The precision of antenna phase center directly affects accuracy of GNSS positioning
systems. Single-band and dual-band RTK GNSS receiver systems depend on Phase
Centre Offset (PCO) correction input at the receiver to improve accuracy of the
receiver to cm level. Thus PCO data is required for GPS post processing at the receiver
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in real time or at a later stage using post processing software once data has been
transferred to a PC.
By using the carrier phase data of L1 and L2 signals, cm level precision is possible
with PCO correction. Single-band and dual-band RTK systems depend on PCO
correction input at the receiver to improve accuracy of the receiver to cm level.
AGPSF.36C.07.0100C L1 Phase Centre Offset Measurements
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AGPSF.36C.07.0100C L2 Phase Centre Offset Measurement
In addition to phase center location, the residual error is the mean of the difference
between actual observed phase center and the predicted values. The smaller the
residual error (typically less than 2 degrees) the better accuracy of the antenna due
to good phase stability.
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AGPSF.36C.07.0100C L1 Residual Error
AGPSF.36C.07.0100A L2 Residual Error
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3.1.3 Return Loss (Passive antenna)
L1 - 1575MHz
L2 - 1227MHz
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3.1.6 Efficiency (Passive Antenna)
3.1.7 Average Gain (Passive Antenna)
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3.1.8 Peak Gain (Passive Antenna)
3.2 Antenna Radiation Pattern Measurement
(Passive Antenna)
3.2.1 Test Setup
Y
X
Z
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3.2.2 2D Radiation Pattern
XY plane
XZ plane
YZ plane
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3.2.3 3D Radiation Pattern
L1 1575.42MHz
L2 1227.6MHz
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3.2.4 Axial Ratio Pattern (Zenith is at 0°)
YZ plane
L1 1575MHz
L2 1227MHz
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XZ plane
L1 1575MHz
L2 1227MHz
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3.3 LNA Gain and Noise Figure (Active antenna)
3.3.1 LNA Gain
L1 1575MHz
L2 1227MHz
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3.3.2 S12 Wide Band Plot
L1 1575MHz @3V
L2 1227MHz @3V
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3.3.3 Noise Figure
L1 1575MHz
L2 1227MHz
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Mechanical Drawing (Unit: mm)
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Packaging
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Application Note
Using Diplexers with an Active Dual-band Antenna
If your application requires separate L1 and L2 inputs—separate L1 and L2 receiver
inputs, for example—then Taoglas diplexers may be used to interface between an
active dual-band antenna and these separate inputs.
Taoglas offers two GNSS diplexers, the DXP.01.A and DXP.02.A. The DXP.02.A add
support for L5 signals (among others). These diplexers offer a unique off-the-shelf
option for splitting the GNSS signals with minimal loss while improving out-of-band
rejection. See the Taoglas website for further details on these components.
Figure 1 - Taoglas DXP.01.A
Figure 2 - Taoglas DXP.02.A
Since these components do not pass DC signals, particular attention needs to be paid
when using an active antenna. Figure 3 provides a simplified schematic of what is
required.
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The key features are:
• DC blocks need to be included between the diplexer matching networks and
the other subsystems. This helps protect the diplexer and prevent any
unintended interactions between the matching network and DC voltages. A
typical DC block for GNSS systems is a 22 pF C0G ceramic capacitor.
• A separate Bias-T is required on the antenna side of the diplexer. Many
receivers include these Bias-T networks internally, but these will be blocked by
the diplexer (and DC blocks). A typical RF choke component for GNSS systems
is a 39nH wire-wound inductor, though this should be reviewed during design
time.
Figure 3 - Schematic
Finally, make sure to following the matching network and layout recommendations
for the diplexer in their respective datasheets.
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Taoglas makes no warranties based on the accuracy or completeness of the contents of this document
and reserves the right to make changes to specifications and product descriptions at any time without
notice. Taoglas reserves all rights to this document and the information contained herein.
Reproduction, use or disclosure to third parties without express permission is strictly prohibited.
Copyright © Taoglas Ltd.
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