丨 Product Introduction
1. High gain: Optimize antenna structure and adopt active technology to enhance signal transmission and reception, expand coverage range and strength.
2. Low profile: Single layer compact structure, small size, easy to install and integrate, suitable for space limited scenarios.
3. Good directionality: Excellent radiation characteristics in specific directions, concentrated energy transmission, and reduced signal loss and interference.
4. Easy to integrate: The structure is simple, the size is small, and it is easy to integrate with other system devices, which is conducive to building communication or radar systems.
丨 Specification parameters
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Specification parameters
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|
Antenna characteristics
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1
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Antenna model
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GNSS antenna
|
|
2
|
Ceramic size
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35*35*4
|
|
3
|
Usage frequency
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GPS: L1：1575.42±1.023MHz
GLONASS: L1:1602+0.5625*K(MHz)
BDS: B1 1561±1.023MHz
GALILEO : E1: 1575
|
|
4
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Gain (Peak gain of 70 * 70mm facing the zenith plane.)
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6dBic
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|
5
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V.S.W.R
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≤1.5
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6
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-10dB bandwidth MHz minimum
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25 min
|
|
7
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Impedance
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50Ω
|
|
8
|
polarization
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RHCP
|
|
9
|
tcf
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20ppm/deg.℃ max
|
|
Low noise amplifier (LAN) performance indicators
|
1
|
parameter
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specifications
|
|
2
|
gain
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32±2dB
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|
3
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figure
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<1.5dB
|
|
4
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VSWR
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<2.0
|
|
5
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output vswr
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<2.0
|
|
6
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voltage
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DC 3~5V
|
|
7
|
electric current
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<20mA
|
|
8
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impedance
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50Ω
|
|
Physical parameters
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1 |
Overall size
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φ40*7.8mm
|
| 2 |
weight
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15g
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| 3 |
Line length
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L=15cm / L=25cm(Customizable)
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| 4 |
Line type
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RG1.13 / RG178(Customizable)
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| 5 |
interface
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IPEX / SMA / MCX / MMCX(Customizable)
|
|
component
|
1
|
Part name
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specifications
|
|
2
|
antenna
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ceramics
|
|
3
|
pcb
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FR4
|
|
Environmental
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1
|
work environment
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-40℃～+85℃, 10%～95% RH
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|
2
|
storage environment
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-55℃～+100℃, 10%～95% RH
|
|
3
|
vibrate
|
Sine scan @ 1.5mm AM 10~55Hz per axis
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丨 product mix
Packaging and Delivery：
AK351 GNSS Antenna
Product Overview
The AK351 is a high-performance GNSS antenna designed with a 35mm ceramic base, capable of simultaneously receiving signals from mainstream satellite systems including GPS, GLONASS, BDS, and GALILEO. Featuring high gain and low noise characteristics, it is suitable for positioning applications in vehicle terminals, portable devices, drones, and other scenarios with space and performance requirements.
Product Features
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Multi-system compatibility: Supports mainstream GNSS frequency bands, enhancing positioning reliability and continuity in complex environments
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High-sensitivity design: Built-in low-noise amplifier with noise figure <1.5dB, improving weak signal reception capability
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Excellent RF matching: Optimized impedance matching with VSWR ≤1.5, ensuring signal transmission efficiency and stability
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Compact and lightweight: Small size, weighing only 15g, with short cable and IPEX interface for easy integration and installation
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Wide temperature and vibration resistance: Operating temperature range of -40℃ to +85℃, suitable for complex environments such as vehicle-mounted and outdoor applications
Application Scenarios
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Vehicle navigation and positioning terminals
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Portable positioning devices
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Drones and agricultural machinery
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Intelligent transportation and surveying equipment
For stable satellite signal reception in compact spaces, the AK351 GNSS antenna is your ideal choice.
About Us
DALANG is a dedicated manufacturer of high-performance GNSS modules and RTK positioning solutions, serving industries such as UAV navigation, precision agriculture, and geospatial mapping. With a clear focus on accuracy, reliability, and integration flexibility, we support both standard and custom applications across global markets. Our product lines are engineered to meet the evolving demands of real-time positioning with support for multiple GNSS constellations, including GPS, GLONASS, BDS, and Galileo.
Our production facility spans 2,500㎡ and includes advanced SMT lines, in-house R&D labs, and full functional testing for every unit shipped. With a team of 30+ GNSS engineers, we design and manufacture over 200,000 GNSS receivers and modules annually. Certified to ISO9001:2015, and compliant with CE and RoHS standards, we follow a strict quality assurance process from prototyping through mass production. We also provide firmware updates, system integration support, and full lifecycle product documentation.
Trusted by partners in over 30 countries, DALANG delivers fast, scalable manufacturing with personalized technical support. Our streamlined collaboration model—covering inquiry, consultation, prototyping, and delivery—ensures efficiency from first contact to deployment. Whether you're sourcing off-the-shelf GNSS hardware or launching a customized solution, DALANG is your dependable partner for accurate, cost-effective positioning systems.
FAQ
1. Who are we?
We are DALANG, a specialized manufacturer of GNSS modules and RTK positioning systems based in China, with a focus on high-precision solutions for UAVs, surveying, and smart agriculture.
2. How can we guarantee quality?
All products undergo strict multi-stage quality control, including SMT production, functional testing, and 100% final inspection. We are ISO9001:2015 certified and follow international compliance standards such as CE and RoHS.
3. What can you buy from us?
You can purchase GNSS receivers, RTK modules, base stations, antennas, flight control positioning systems, and other GNSS-related components and accessories.
4. Why should you buy from us not from other suppliers?
We combine strong in-house R&D, flexible OEM/ODM support, industrial-grade quality assurance, and fast global delivery. Our expertise in GNSS RTK ensures stable, accurate, and scalable solutions tailored to your specific use case.
5. What services can we provide?
We offer OEM/ODM customization, technical consulting, firmware support, prototyping, and global after-sales service. Our team works closely with international clients to ensure efficient communication and long-term support.
