丨 Product Introduction
1. High precision positioning: Meet the high-precision GNSS antenna positioning requirements and provide accurate location information.
2. Stacked antenna: a combination of doubly single fed antennas to enhance signal reception and stability.
3. High gain broadband: improves signal reception quality and coverage range.
4. Environmental compliance: Compliant with RoHS directive and meets environmental performance standards.
丨Specification parameters
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Ⅱ. Specification
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Antenna
Characteristics
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1
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Antenna Model
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GPS antenna
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2
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Ceramic Dimensions
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50*50*4/40*40*4
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3
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Operating Frequency
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GPS：
L1:1575.42±1.023MHZ
L2:1227±1.023MHZ
Bei Dou：
B1:1561±2.046MHz
B2:1207±2.046MHz
GLONASS：
L1:1602+0.5625*k（MHz）
L2:1246+0.4375*k（MHz）
GALILEO: E1:1575
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4
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Frequency Range
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1170-1238/1559-1612MHz
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5
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Axial Ratio
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Elevation angle 90 degrees; ≤3,
Elevation angle 15 degrees
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5
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V.S.W. R
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≤2
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6
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Gain
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Elevation angle 90 degrees; ≥6,
Elevation angle 20 degrees
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7
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Front-to-back Ratio
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±60 degrees ≥15dB
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8
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Out-of-band Rejection
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1238＋100MHz≥50db
1170＋100MHz≥50db
1602＋100MHz≥50db
1561-100MHz≥50db
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9
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In-band Flatness
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±1dB
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10
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Impedance
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50Ω
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11
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Polarization Mode
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RHCP
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12
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Voltage
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3.3~12V
|
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13
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Current
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25~40mA
|
|
14
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Noise Figure
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＜1.0
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Bill Of Materials (BOM)
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1
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Antenna volume (mm)
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58*14.5mm
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2
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Product weight
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86.8g
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3
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joint
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MCX / MMCX / SMA / IPEX (customizable)
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4
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wire rod
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RG178 / RG1.13 (customizable)
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5
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Line length
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150mm / 250mm (customizable)
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6
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PCB
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FR4
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Operating
Environment
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1
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Working Environment
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-40℃~+85℃，10%~95%RH
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|
2
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Storage Environment
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-55℃+100℃，10%95%RH
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丨product mix
Packaging and Delivery：
Product Overview
The AK622 is a dual-frequency active antenna with a stacked ceramic structure (50×50×4/40×40×4mm), specifically designed for high-precision positioning with BeiDou and GPS systems. It simultaneously receives GPS L1/L2 and BeiDou B1/B2 frequency band signals, suitable for high-precision positioning applications such as vehicle navigation, UAV positioning, and precision agriculture.
Dual-Frequency High-Precision Positioning
Supports dual-frequency signal reception for GPS L1/L2 and BeiDou B1/B2, providing more stable and accurate positioning performance to meet high-precision GNSS application requirements.
Stacked Antenna Design for Stronger Signal Reception
Utilizes a dual-feed stacked ceramic antenna design to enhance signal reception capability and stability, featuring high gain and wide bandwidth for effective signal coverage extension.
Compact Structure and Strong Environmental Adaptability
Compact antenna size of 58×58×14.5mm, weight 86.8g, operating temperature range from -40℃ to +85℃, suitable for various outdoor and vehicle-mounted harsh environments.
Product Advantages
High Gain and Excellent Axial Ratio
High antenna gain and optimized axial ratio (≤3 at 90° elevation), improving signal reception efficiency and positioning accuracy.
Strong Anti-Interference Capability
Excellent out-of-band rejection performance (≥50dB), effectively filtering out interference signals to ensure signal purity.
Flexible Customization Options
Supports customization of MCX connector, RG178 cable, and cable length for easy integration into different devices.
Environmentally Compliant
Complies with RoHS environmental standards, meeting global market access requirements.
Looking for a high-performance dual-frequency GPS antenna for your vehicle, UAV, or agricultural equipment?
The AK622 provides a stable, high-precision, and strong anti-interference signal reception solution. Contact us for samples and technical support.
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.
