ANN-MB1
L1/L5 multi-band high precision GNSS antenna
Data sheet
Abstract
This technical data sheet describes the ANN-MB1 multi-band L1/L5 active GNSS antenna that
supports GPS, GLONASS, Galileo, and BeiDou. The antenna provides a fast and easy solution for high
precision applications with an excellent price-to-performance ratio. The antenna also offers versatile
mounting options.
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ANN-MB1 - Data sheet
Document information
Title
ANN-MB1
Subtitle
L1/L5 multi-band high precision GNSS antenna
Document type
Data sheet
Document number
UBX-21005551
Revision and date
R04
Disclosure restriction
C1-Public
12-Jun-2023
Product status
Corresponding content status
In Development /
Prototype
Objective Specification
Target values. Revised and supplementary data will be published later.
Engineering Sample
Advance Information
Data based on early testing. Revised and supplementary data will be published later.
Initial Production
Early Production Information
Data from product verification. Revised and supplementary data may be published later.
Mass Production /
End of Life
Production Information
Document contains the final product specification.
This document applies to the following products:
Product name
Type number
Connector type
PCN reference
Product status
ANN-MB1
ANN-MB1-00-00
SMA
N/A
Mass production
u-blox or third parties may hold intellectual property rights in the products, names, logos and designs included in this
document. Copying, reproduction, modification or disclosure to third parties of this document or any part thereof is only
permitted with the express written permission of u-blox.
The information contained herein is provided “as is” and u-blox assumes no liability for its use. No warranty, either express or
implied, is given, including but not limited to, with respect to the accuracy, correctness, reliability and fitness for a particular
purpose of the information. This document may be revised by u-blox at any time without notice. For the most recent
documents, visit www.u-blox.com.
Copyright © u-blox AG.
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ANN-MB1 - Data sheet
Contents
3.1 Mechanical drawing .................................................................................................................................... 6
3.2 Mechanical data .......................................................................................................................................... 6
3.3 Connector type ............................................................................................................................................ 6
6.1 Block diagram .............................................................................................................................................. 8
6.2 Antenna phase center ................................................................................................................................ 8
6.3 Radiation pattern ........................................................................................................................................ 9
7.1 Explanation of product codes .................................................................................................................10
9.1 Approvals ....................................................................................................................................................11
9.2 Safety precaution......................................................................................................................................11
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Contents
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ANN-MB1 - Data sheet
1
Overview
The u-blox ANN-MB1 multi-band (L1/L5/E5a/B2a/NavIC) active GNSS antenna is designed to reduce
the time-to-market for the new generation of high precision GNSS applications, which require highly
accurate location abilities. The compact design, excellent price-to-performance ratio, and versatile
mounting choices provide customers with a fast, easy, and reliable multi-band antenna solution. The
ANN-MB1 antenna is a perfect match to the u-blox F9 platform (including NEO-F9P-15B, ZED-F9P15B, and ZED-F9T-10B), supporting L1 and L5 bands, thus providing customers with the valuable
antenna solution they need to minimize evaluation and design-in efforts.
The ANN-MB1 includes a high-performance multi-band RHCP dual-resonance, dual-feed patch
antenna element, a built-in high-gain LNA with SAW pre-filtering, and a 5-meter antenna cable with
an SMA connector.
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Overview
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ANN-MB1 - Data sheet
2
Electrical specifications
Parameter
Frequency
1
L1 band
L5/E5a/B2a/NavIC band
1559–1606 MHz
1164–1188 MHz
50 Ω
50 Ω
Typ. 3.8 dBic (Zenith)
Typ. 1.3 dBic (Zenith)
Typ. 3.3 dB (Zenith)
Typ. 3.4 dB (Zenith)
Typ. 55%
Typ. 40%
RHCP
RHCP
Parameter
L1 band
L5/E5a/B2a/NavIC band
Frequency
1559-1606 MHz
1164-1188 MHz
Impedance
50 Ω
50 Ω
Impedance
1
Gain1
Axial ratio1
Efficiency
1
Polarization1
Table 1: Patch antenna element specifications
Typ. 29 ± 3.0 dB
Typ. 33 ± 3.0 dB
LNA noise figure2,3
Typ. 2.7 dB
Typ. 2.8 dB
Output VSWR
Typ. 2.0
Typ. 2.0
LNA gain
2,3
Cable insertion loss (RG-174, length 5 m)
Typ. 7.0 dB
Typ. 5.5 dB
Total gain2,4
Typ. 22 dB
Typ. 27.5 dB
Typ. 55 dB (at 1706 MHz)
Typ. 75 / 75 /75 / 65 / 65 / 85 / 85 / 65
dB (at 699 / 785 / 915 / 1710 / 1880 /
1980 / 2300 / 2690 MHz)
Typ. 85 dB (at 1288 MHz)
Typ. 75 / 80 / 75 / 70 / 70 / 90 / 85 / 70
dB (at 699 / 785 / 915 / 1710 / 1880 /
1980 / 2300 / 2690 MHz)
Out-of-band rejection
min 100 MHz from GNSS band edges
at selected cellular bands
Supply voltage 5
3.0-5.0 V
Supply current2,5
Typ. 15 mA
Table 2: Amplifier specifications
1
Measured on a ø12 cm ground plane. Measured values include the antenna feed network (hybrid coupler).
Measured using 5.0 V supply voltage
3
Includes LNA and SAW pre-filter section
4
Includes LNA gain and cable insertion loss
5
Single supply for L1 and L5 bands
2
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ANN-MB1 - Data sheet
3
Mechanical specifications
3.1 Mechanical drawing
Figure 1: ANN-MB series mechanical drawing. Dimensions are given in mm. The antenna reference point (ARP) is marked
with a red dot.
3.2 Mechanical data
Parameter
Specification
Weight (typical incl. cable)
164 g
Size
82.0 x 60.0 x 22.5 mm
Connector options
SMA (plug)
Cable type, length
RG174, 5.0 m
Mounting
Magnetic base, fixed installation option (screw mount, 2 x M4 screws)
Housing color
Black
Table 3: Mechanical specifications
3.3 Connector type
SMA (plug) ANN-MB1-00
Table 4: ANN-MB1 connector type
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4
Environmental information
Parameter
Specification
Operating temperature
-40 to +85˚C
Storage temperature
-40 to +85˚C
ESD circuit protection
±15 kV (IEC61000-4-2)
Ingress protection (IP) rating
IP67 (protected from dust and temporary immersion in water up to 1 m depth)
Humidity
95%RH, 60 ºC, 96 hours
Vibration
MIL-STD-810G, Method 514.7 Vibration
Table 5: Environmental information
5
Absolute maximum ratings
Parameter
Symbol
Power supply voltage
Condition
Min
Max
Units
VCC
0.0
10.0
V
Operating temperature
TGP
–40
+85
°C
Storage temperature
TSTG
–40
+85
°C
Table 6: Absolute maximum ratings
⚠
Stress above one or more of the limiting values may cause permanent damage to the device. These
are stress ratings only. Operation of the device at these or at any other conditions above those
given below is not implied. Exposure to limiting values for extended periods may affect device
reliability.
⚠
The product is not protected against overvoltage or reversed voltages. Voltage spikes exceeding
the power supply voltage specification, given in the table above, must be limited to values within
the specified boundaries by using appropriate protection diodes.
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ANN-MB1 - Data sheet
6
Antenna characteristics
6.1 Block diagram
A simplified block diagram for ANN-MB1 L1/L5 multi-band antenna is shown in Figure 2. The block
diagram is divided into patch antenna element and amplifier sections. The patch antenna element
section is specified in Table 1 and the amplifier section in Table 2. The 5-meter coaxial cable is
connected to the amplifier section output.
Figure 2: Simplified ANN-MB1 block diagram
6.2 Antenna phase center
Typical values for the absolute antenna phase center offset in L1 and L5 bands are given in Table 7.
The phase center offset is given in millimeters with respect to the antenna reference point defined in
Figure 1. The “North” direction is toward the cable connector. The “Up” direction is normal to the
antenna ground plane, toward the patch element.
☞
The phase center offset is measured on a circular ground plane with a 120-millimeter diameter.
Any change in ground plane size or shape may affect the phase center offset.
GNSS
Frequency
Phase center offset
Phase center variation
Horizontal plane
Up
Over azimuth/elevation 6
GPS L1 C/A
1575.42 MHz
< 5 mm in all directions
6.9 mm
< 6 mm
GPS L5
1176.45 MHz
< 6 mm in all directions
12 mm
< 10 mm
Table 7: Typical values for phase center offset and variation relative to antenna reference point (ARP) at L1 and L5 bands.
Measured on a circular 120-millimeter ground plane.
6
Elevation mask applied to the phase center variation. Elevation angles less than 10˚above horizon excluded.
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ANN-MB1 - Data sheet
6.3 Radiation pattern
The radiation patterns at the L1 and L5 bands are shown in Figure 4 and Figure 5, respectively. The
RHCP gain value is the total gain including the passive antenna element, the amplifier section, and
the RG174 cable. The planes for the 2-D cuts are H (xy plane), E1 (xz plane), and E2 (yz plane). The
coordinate axes are defined in Figure 3.
☞
The spherical coordinate system used to represent the radiation pattern data is different from the
“North”, “East”, “Up” coordinate system used for antenna phase center offset in section 6.2.
Figure 3: Definition of coordinate axes for radiation pattern plots
Figure 4: Radiation pattern at the L1 band. The 2-D cuts are measured at 1559 - 1606 MHz (nine frequencies).
Figure 5: Radiation pattern at the L5 band. The 2-D cuts are measured at 1164 - 1188 MHz (five frequencies).
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ANN-MB1 - Data sheet
7
Product labeling
The product information label is found on the underside of the ANN-MB1 L1, L5 multi-band GNSS
antenna. The label includes the product type number, which provides important information on the
product.
Figure 6: ANN-MB1 multi-band GNSS antenna product label. ANN-MB1 is produced in China or in Korea.
7.1 Explanation of product codes
Three different product code formats are used. The Product name is used in general communications
about product families and variants. The Ordering code includes options, whereas the Type number
includes information on the hardware version. The product code formats are described in Table 8 and
Table 9.
Format
Structure
Product name
PPP-GVY
Ordering code
PPP-GVY-NN
Type number
PPP-GVY-NN-XX
Table 8: Product code formats
Code
Meaning
Example
PPP
Product family
ANN
GV
Product generation
MB: Multi-band
Y
Product variant
1: L1, L5 high precision
NN
Option
Connector type:
00 = SMA connector
XX
Product revision
Table 9: Explanation of product codes
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Product labeling
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ANN-MB1 - Data sheet
8
Ordering information
Ordering no.
Product
ANN-MB1-00
L1/L5 multi-band active GNSS antenna, 5 m cable, SMA (plug) connector
Single units
Table 10: Ordering information
9
Approvals and safety precaution
9.1 Approvals
The ANN-MB1 complies with all essential requirements for RED 2014/53/EU. The ANN-MB1
Declaration of Conformity (DoC) is available at www.u-blox.com within Support > Product resources >
Conformity Declaration.
The ANN-MB1 complies with the Directive 2011/65/EU (EU RoHS 2) and its amendment Directive (EU)
2015/863 (EU RoHS 3).
9.2 Safety precaution
The ANN-MB1 shall be supplied by a power supply complying with the requirements of PS1 according
to safety standard EN 62368-1 (https://webstore.iec.ch/publication/27412).
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Ordering information
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ANN-MB1 - Data sheet
Revision history
Revision
Date
Name
Comments
R01
15-Mar-2021
rmak
Advance Information.
R02
29-Nov-2021
rmak
Mass production. Updated Section 6.2 Antenna phase center and Section 7 Product
labeling. Added section 0, Approvals and safety precaution.
R03
28-Nov-2022
rmak
Updated section 5 Absolute maximum ratings. Editorial change. Updated section 7
Product labeling. Added China as a country of origin (China and Korea). Updated
section Contact.
R04
12-Jun-2023
rmak
Updated section 1 Overview. Added missing table caption in section 4
Environmental information.
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ANN-MB1 - Data sheet
Contact
Address:
u-blox AG
Zürcherstrasse 68
8800 Thalwil
Switzerland
For complete contact information, visit us at www.u-blox.com.
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Contact
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