ANN-MB series - Data Sheet
1 Overview
The u-blox ANN-MB multi-band (L1, L2/E5b/B2I) active GNSS antennas are designed to reduce time
to market for the next generation of high precision GNSS applications, which require highly accurate
location information. The compact design, excellent price to performance ratio, and versatile
mounting and connector choices provide customers with fast, easy, and reliable multi-band antenna
solutions. The ANN-MB antenna is a perfect match to the latest u-blox F9 platform, including the
ZED-F9P module, thus providing customers with a valuable antenna solution to minimize design-in
efforts.
The ANN-MB series includes a high-performance multi-band RHCP dual-feed patch antenna element,
a built-in high-gain LNA with SAW pre-filtering, and a 5 m antenna cable with three connector options
(SMA, SMB, MCX).
2 Electrical specification
Patch antenna specification
Parameter
Frequency 1
Impedance 1
L1 Band
L2/E5b/B2I Band
1197-1249 MHz
50 Ω
1559-1606 MHz
50 Ω
Gain 1
Axial ratio 1
Polarization 1
Typ. 3.5 dBic (Zenith)
Max. 2.0 dB (Zenith)
RHCP
Typ. 0.0-2.0 dBic (Zenith)
Max. 2.0 dB (Zenith)
RHCP
Table 1: Patch antenna element specification
Amplifier specification
Parameter
L1 Band
L2/E5b/B2I Band
1197-1249 MHz
50 Ω
Frequency
1559-1606 MHz
50 Ω
Impedance
LNA Gain 2,3
LNA Noise Figure 2,3
Typ. 28 ± 3.0 dB
Max. 2.8 dB
Max. 2.0
Typ. 28 ± 3.0 dB
Max. 3.2 dB
Output VSWR
Max. 2.0
Cable Insertion Loss (RG-174, length 5 m)
Total Gain 2,4
Typ. 6.6 dB
Typ. 21.4 dB
Typ. 5.6 - 6.6 dB
Typ. 21.4 - 22.4 dB
Out-of-band rejection
min. 100 MHz from GNSS band edges
at selected cellular bands
Typ. 65 dB (at <1459 MHz), 70 dB
(>1706 MHz)
Typ. 50 dB (at <1097 MHz), 75 dB
(>1349 MHz)
Typ. 85 / 80 / 70 / 75 / 80 dB (at 698 /
960 / 1710 / 2170 / 2690 MHz)
Typ. 65 / 45 / 45 / 75 / 80 dB (at 698 /
960 / 1710 / 2170 / 2690 MHz)
Supply voltage 5
Supply current 2,5
3.0 - 5.0 V
Typ. 15 mA
Table 2: Amplifier specification
1 Measured on a ø15 cm ground plane. Measured values include the antenna feed network (hybrid coupler).
2 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 L2/E5b/B2I bands
UBX-18049862 - R04
Production Information
Overview
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