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SPE-18-8-091/B/JY Page 1 of 14
Specification
Part No. : AQHA.50.A.301111
Product Name : Colosseum High Performance Multiband GNSS
Active Quad Helix Antenna
Features : Permanent Mount Robust Housing
GPS L1/L2/L5
GLONASS L1/L2/L3
Galileo E5A/E5B/E6
BeiDou B1/B1-2/B2/B3
High Gain (18dB~27dB)
IP67 Rated Waterproof ASA Enclosure
Cable: 3M RG-174
Connector: SMA(M)ST
Dimensions: Ø94 x 57mm
RoHS Compliant
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1. Introduction
The Taoglas Colosseum AQHA.50 multi-band GNSS active antenna has been carefully
designed to work well on multiple GPS, GLONASS, Galileo and BeiDou bands, leading to
higher location accuracy and stability of tracking in urban environments. The quad helix
antenna design has an even gain across the hemisphere giving almost perfect axial ratio
which makes it resilient to multipath rejection.
The Colosseums internal LNA provides excellent out of band rejection performance
providing excellent positioning stability and reliability of GNSS signals. The robust,
vandal resistant, permanent mount IP67 rated enclosure is just 57mm in height and
designed for ease of installation and can be mounted on any surface.
The AQHA.50 is the latest external addition to an ongoing product road map of high
precision antennas by Taoglas. Typical Applications Include:
• Autonomous Driving
• Precision Positioning for Robotics
• Precision Agriculture
• Inventory Management & Container tracking
• Telematics & Asset Tracking
• Timing Accuracy Synchronization
For RTK applications when used on the base and/or the rover, the AQHA.50 can achieve
genuine centimetre level accuracy.
Cable and connectors are customizable. Please contact your regional Taoglas office for
support.
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2. Electrical Specifications
Antenna Specification
Frequency 1176.45MHz
(L5)
1227.6MHz
(L2)
1575.42MHz
(L1)
Impedance 50Ω 50Ω 50Ω
Return Loss < -10 < -10 < -10
Axial ratio 1.2@ 0∘ 1.0 @ 210∘ 0.5 @ 210∘
Efficiency on
30cm*30cm Ground Plane 26.87% 30.72% 25.03%
Average Gain on
30cm*30cm Ground Plane -5.71dB -5.13dB -6.02dB
Peak Gain @ Zenith on
30cm*30cm Ground Plane 1.6dB 3.5dB 0.8dB
Polarization RHCP
LNA Specification *
Frequency 1176MHz 1227MHz 1575.42MHz
Impedance 50Ω
Return Loss < -10 -5 typ. < -10
Gain @3.0V 24dB typ. 18dB typ. 27dB typ.
DC Power Input 3.0V typ.
Noise Figure 2.4dB Typ. 2.1dB Typ. 1.8dB Typ.
Power Consumption 21mA Typ.
Operating Temp -30°C ~ +80°C
Storage Temp -30°C ~ +80°C
*Measurements do not include cable losses.
GNSS Systems Covered
GPS L1C/A
GLONASS L1OF
BeiDou B1I E6/B3 GLONASS
L2OF GPS L2C B2I/E5b
GPS L5 B2a/E5a
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Mechanical Specification
Dimensions Diameter: 94.3mm, Height: 57.4 mm
Casing ASA
Base and thread Zinc Alloy
Weight 395g
Ingress Protection Rating IP67
Maximum Assembly Torque 39.2 Nm
Regulatory Compliance CE, ROHS, Reach
Environmental Specification
Operation Temperature -40°C to 85°C
Storage Temperature -40°C to 85°C
Humidity Non-condensing 65°C 95% RH
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3. Antenna Characteristics
3.1 Block Diagram (Active antenna)
4. Antenna Characteristics
4.1 Testing setup
On 30x30cm ground plane
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4.2 Return Loss (Passive antenna)
4.3 Efficiency
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4.4 Average Gain
4.5 Peak Gain
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4.6 Axial ratio
(X-Z cut) @1176MHz
(X-Z cut) @1227MHz
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(X-Z cut) @1575.42MHz
4.7 Antenna Radiation Pattern Measurement
The antenna radiation patterns were measured in Anechoic Chamber. The measurement setup as below;
On 30x30cm ground plane
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4.8 Antenna 2D Radiation Patterns on 30x30cm ground plane
X-Y plane
X-Z plane
Y-Z plane
X
Z
Y
Z
X
Y
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5. LNA Gain and Noise Figure
@ DC 3.0V
0
5
10
15
20
25
30
1.15 1.2 1.25 1.3
LNA Noise & Gain@1176MHz/1227MHz
Noise Gain 1.176G 1.227G
0
5
10
15
20
25
30
35
1.535 1.555 1.575 1.595 1.615 1.635
LNA Noise & [email protected]
Noise Gain 1575.42
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6. Drawing
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7. Packaging
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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.