Anti-Jamming Mini GNSS Antenna

Overview

This solution autonomously mitigates interference from up to three B1L1E1 signal sources, identifying and suppressing interference without manual input. It achieves at least 90dB suppression for one interference source and 80dB for three, ensuring stable satellite signals for positioning in both artificial and natural interference environments. With power consumption below 8W, it is ideal for UAVs and portable devices. The system is resistant to power burn-out above 10W, features multi-stage pre-filters for out-of-band noise suppression, and comes with an SMA male RF connector and aviation-grade interfaces.

Key Features

Strong Anti-Interference Performance & Low Power Consumption

Its power consumption is ＜8W, with single interference resistance no less than 90dB, i.e., maximum interference tolerance -40dBm; triple interference resistance no less than 80dB, i.e., maximum interference tolerance -50dBm.

Highly Integrated Technology & Compact Design

The solution also integrates antennas for GPS L1 L2 L5, BDS B1 B2, Galileo E1 E5, and GLONASS R1 R2, with compact size of only φ100*H73mm and light weight of only 1kg.

High Power Burn-Out Resistance

Designed with high power burn-out resistance, with a maximum power tolerance of no less than 10W.

Marine-grade Anti-corrosion Coating

Features a special anti-salt spray coating, ideal for marine use, passing 28 days of neutral salt spray testing.

Parameters

ANTENNA PERFORMANCE

Antenna Array Elements

4B1L1E1+GNSS Multiband

Isolation

Co-Frequency Unit Antenna≤-15dB

Peak Gain

1dBic

Axial Ratio

≤3dB

VSWR

≤2.0

Nominal Impedance

50Ω

Polarization

RHCP

CIRCUIT PERFORMANCE

LNA Gain@B3/B1/L1
(High Precision Positioning)

21±1dB (Determined by the matching module)

VSWR

≤2.0

Output VSWR

≤2.0

Out-of-Band Rejection

@50M≥65dB@1509M&@1629M

Noise Figure

≤2dB

Burnout Resistance

≥10W

SYSTEM PERFORMANCE

Operation Voltage

DC 9-32V (Antenna LNA: 3.3-12V)

Operation Current

Each Channel＜120Ma
(Antenna Array Elements:＜100mA)

Power Consumption

＜7W

Number of Anti-Interference
Sources

Signal-to-Interference Ratio

Single Feed≥90dB; Triple Feed≥80dB

MECHANICAL

Dimensions

φ100*H73mm (Accessories and connector not included)

Weight

≤1kg

Color

Grey-White

Housed Material

The top cover is PC, the base is aluminum alloy, the surface
coating utilizes marine-grade paint

Fixed Method

The base can be secured with screws or with optional
5/8 mounting accessory

Connector

TNC-K (RF Signal), ZLN.2F.316.CLL-2B Socket
(Power Supply+Control Signal）

ENVIRONMENTAL

Operating temperature

-40℃ to +70℃

Storage temperature

-45°C to +85°C

Waterproof Rating

IP67

Salt Spray Test

Neutral salt spray for 28 days

Mechanical Shock Test

≤50g

COMPLIANCE

Quality Level

Industrial Grade

Product Certification

FCC, CE, RoHS

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