丨 Product Introduction
1. Structure: Built in 40 * 40 * 4 passive antenna, compact and easy to install and integrate.
2. Adaptability: The cable interface is flexible and suitable for fields such as navigation, communication, and the Internet of Things.
3. Installation: The cable length is suitable, the interface operation is simple, and it saves time and manpower.
4. Anti interference: Resist interference from surrounding signals, filter out clutter, ensure signal purity and accurate data transmission.
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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GPS external antenna
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|
2
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Ceramic size
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40*40*4mm
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|
3
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Usage frequency
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GPS：L1:1575.42±1.023MHZ
GLONASS：L1:1602+0.5625MHz
BDS: B1:1561±1.023MHz
GALILEO：E1:1575
|
|
4
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V.S.W.R
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≤2.0
|
|
5
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-10dB bandwidth MHz min
|
10min
|
|
6
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Gain
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28±2dBic
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|
7
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impedance
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50Ω
|
|
8
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Polarization mode
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RHCP
|
|
LNA
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1
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LNA gain
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27±2dB
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|
2
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V.S.W.R
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<2
|
|
3
|
figure
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<1.5dB
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|
4
|
voltage
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DC 3~5V
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|
5
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electric current
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<20mA
|
|
6
|
impedance
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50Ω
|
|
Mbom
|
1
|
Overall size (mm)
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49.5*49.5*19.5mm
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|
2
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Product weight
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76.6g
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|
3
|
joint
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SMA elbow (customizable)
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|
4
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wire rod
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RG174 (customizable)
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|
5
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Line length
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3m (customizable)
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|
6
|
PCB
|
FR4
|
|
work environment
|
1
|
work environment
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-40℃~+85℃，10%~95%RH
|
|
2
|
Environment
|
-55℃+100℃，10%95%RH
|
Packaging and Delivery：
Product Overview
The AK211 is an active GPS antenna designed with a single-layer ceramic substrate (40×40×4mm), featuring a built-in low-noise amplifier (LNA) that significantly enhances signal gain and reception sensitivity, effectively capturing weak signals. Compact in structure, it is easy to integrate into space-constrained devices and suitable for navigation, communication, IoT, and other fields.
Strong Signal Enhancement and Anti-Interference Capability
The built-in LNA circuit greatly amplifies weak signals and improves signal reception strength. It also features good frequency selectivity, effectively filtering out interference to ensure pure output signals.
Compact Structure and Easy Installation
The antenna is small in size (49.5×49.5×19.5mm) and lightweight (76.6g), equipped with a standard SMA elbow connector and RG174 cable for flexible installation without complex tools.
Multi-Band Support and Wide Applicability
Supports multiple navigation frequency bands including GPS L1, GLONASS L1, BeiDou B1, and Galileo E1, meeting signal reception needs for different systems.
Product Advantages
High Gain and High Sensitivity
Antenna gain up to 28±2dBic, LNA gain 27±2dB, effectively improving signal reception range and stability.
Wide Operating Temperature Range
Operating temperature from -40℃ to +85℃, suitable for long-term stable operation in harsh environments.
Flexible Customization Options
Cable length, connector type, and other specifications can be customized according to requirements, facilitating integration into various devices.
Excellent Anti-Interference Performance
Good voltage standing wave ratio (V.S.W.R ≤2.0) and impedance matching (50Ω), reducing signal reflection and loss.
Looking for a high-performance GPS antenna for your navigation or communication device?
The AK211 provides a signal-enhanced, anti-interference, and easy-to-integrate antenna solution. Contact us for samples and technical documentation.
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.
