RI01261500Q [ETC]
915MHz Road Marker Antenna; 915MHz的路标天线
| 型号： | RI01261500Q |
| 厂家： | 
ETC |
| 描述： | 915MHz Road Marker Antenna |
| 文件： | 总11页 (文件大小：650K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SPECIFICATION
Part Number:
Product Name:
Features:
RI.01.26.1500Q
915MHz Road Marker Antenna
High performance antenna solution inside a standard road
marker
RoHS Compliant
Top
Bottom
Side Profile
SPE-13-8-079/A/AS
Page 1 of 11
1. Introduction
Taoglas USA has designed a range of efficient antennas inside US standard raised non
reflective roadmarkers. These are designed for, and installed inside, the low profile “Bott’s
dots” that can to be mounted directly on the pavement and road in the USA.
These antennas exhibit remarkably high efficiencies in such small packages and live in a very
low profile enclosure. They are designed to be mounted directly on the road, pavement or
manhole cover, just like a standard roadmarker.
These antennas have been potted with the epoxy that is traditionally used to secure the
roadmarker itself to the ground. There are no air gaps whatsoever inside the new type
approved roadmarker with antenna, in order to maintain the mechanical integrity. It is
presumed that the standard black epoxy will also be used to install the roadmarker in its final
resting place on the ground.
SPE-13-8-079/A/AS
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2.Specification
ELECTRICAL
915 MHz ISM
Band
Frequency (MHz)
Polarization
902-928
Linear
Impedance
(Ohms)
50 Ohms
Peak Gain (dBi)
Efficiency (%)
3.2
26
Return Loss (dB)
-18
Radiation
Properties
Max Input Power
(Watts)
Omni-directional
10
MECHANICAL
Dimensions
Cable
Height = 19 mm and Diameter = 99mm
Belden 7805R Coaxial cable
SMB (M) Jack Straight 50 Ohms
UV Resistant ABS
Connector
Casing
Sealant
Potting
ENVIRONMENTAL
IP67
Protection
Corrosion
5% NaCI for 96hrs
Temperature
Range
-40°C to +85°C
Thermal Shock
Humidity
100 cycles -40°C to +85°C
Non-condensing 65°C 95% RH
Shock (Drop
Test)
1m drop on concrete 6 axes
8 Kgf
Cable Pull
SPE-13-8-079/A/AS
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3. Test Set Up
Figure 1. Impedance (left hand)
and peak gain, efficiency and radiation pattern measurements (right hand).
SPE-13-8-079/A/AS
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4.Antenna Parameters
4.1. Return Loss
Figure 2. Return Loss 915MHz Road Marker in Free Space and on Piece of Road.
4.2. Efficiency
Figure 3. Efficiency of the 915MHz Road Marker in Free Space and on Piece of Road.
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4.3. Peak Gain
Figure 4. Peak Gain 915MHz Road Marker in Free Space and on Piece of Road
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4.4. Radiation Pattern
Figure 5. Road Marker ISM Antenna radiation pattern at 900 MHz on Piece of Road.
.
Figure 6. Radiation pattern at 915 MHz on a Piece of Road.
SPE-13-8-079/A/AS
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Figure 7. Radiation pattern at 930 MHz on a Piece of Road.
.
Figure 8. Radiation pattern at 900 MHz in Free Space.
SPE-13-8-079/A/AS
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.
Figure 9. Radiation pattern at 915 MHz in Free Space.
Figure 10. Radiation pattern at 930 MHz in Free Space.
SPE-13-8-079/A/AS
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5.MECHANICAL DRAWING
SPE-13-8-079/A/AS
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SPE-13-8-079/A/AS
Page 11 of 11
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