丨 Product IntroductionAK254 It is a high-performance miniaturized antenna designed with high-quality ceramic media and high gain, specifically optimized for satellite navigation systems such as GPS, Beidou, GLONASS, etc. Its compact size is suitable for embedded applications with limited space, such as drones, in car navigation, portable devices, and IoT terminals. The built-in low-noise amplifier (LNA) effectively enhances signal reception sensitivity and ensures stable acquisition of satellite signals in complex environments, making it an ideal choice for high-precision positioning requirements.
characteristic:1. High sensitivity reception: Integrated low-noise amplifier chip (LNA) with excellent signal gain, effectively suppressing noise and improving positioning accuracy in weak signal environments.
2. High performance ceramic media: Ceramic substrate materials ensure stable dielectric properties, reduce signal loss, have strong anti-interference ability, and are suitable for multi band satellite systems.
3. Ultra thin and compact design: With a thickness of only 6.7mm and a mini size of 25mm, it saves device space and is easy to integrate into miniaturized mobile devices.
4. Wide voltage compatibility: Supports 3V~5V wide voltage power supply, adapts to various embedded systems, has low power consumption, and excellent battery life performance.
丨 Specification parameters
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Specification parameters
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Antenna
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1
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Antenna model
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GNSS Antenna
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2
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Ceramics Size (mm)
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25*25*4
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3
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Nominal 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
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4
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Gain (Peak gain on70*70mm Ground Plane facing Zenith.)
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5dBic
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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 min
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10min
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7
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impedance
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50Ω
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8
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Polarization
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RHCP
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9
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Frequency Temperature Coefficient
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20ppm/deg.℃ max
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LAN
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1
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Parameter
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Specifications
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2
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Gain
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27±2dB
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3
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Noise coefficient
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<1.5dB
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4
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Input V.S.W.R
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<2.0
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5
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Output V.S.W.R
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<2.0
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6
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Voltage
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DC 3~5V
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7
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Current
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3~6mA
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8
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Impedance
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50Ω
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Physical parameters
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1
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Size
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25*6.7mm
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2
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weight
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11g
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3
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Line type
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RG1.13
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4
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Line Length
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L=5cm
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5
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Linear interface
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IPEX
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6
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Part Name
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SPEC
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7
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Antenna
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ceramics
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8
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pcb
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FR4
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Environment
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1
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Working Temp
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-40℃～+85℃, 10%～95% RH
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2
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Storage Temp
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-55℃～+100℃, 10%～95% RH
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3
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Vibration
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Sine sweep @1.5mmAM 10~55Hz each Axis
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Packaging and Delivery：
DALANG High-Performance GNSS Antenna
The DALANG High-Performance GNSS Antenna is a compact antenna designed for in-vehicle navigation and portable devices, supporting the GPS L1 band (1575.42±2.5MHz). Featuring a 25×25×6.7mm ceramic design and a high-gain low-noise amplifier, it delivers stable and reliable positioning signals in various usage environments.
Excellent Signal Reception Performance
The antenna incorporates an optimized RF design with outstanding gain performance and a low-noise amplifier, ensuring consistent and stable positioning signals during movement. Excellent voltage standing wave ratio (VSWR) characteristics guarantee signal transmission efficiency, maintaining reliable positioning performance even in complex environments.
Energy-Efficient and Eco-Friendly Design
With low power consumption design, the operating current is controlled at the milliampere level, meeting the power requirements of in-vehicle and portable devices. Right-hand circular polarization (RHCP) technology effectively enhances anti-interference capability, ensuring stable operation in complex electromagnetic environments.
Compact and Robust Structural Design
The compact size allows for easy integration into in-vehicle and portable devices, while the sturdy design adapts to various usage environments, providing a convenient and reliable solution for device manufacturers.
Product Advantages
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High-Quality Signal Reception
Optimized gain design and signal processing technology ensure stable positioning performance in mobile environments.
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Low Power Consumption Design
Low power consumption meets the energy efficiency requirements of various electronic devices, extending usage time.
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Reliable Transmission Performance
Excellent electrical characteristics ensure signal transmission quality, improving the reliability of positioning systems.
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Easy Integration and Use
Compact size and robust design facilitate quick integration into various devices.
Looking for a reliable GPS antenna solution for your devices? DALANG High-Performance GNSS Antenna delivers stable performance to meet your positioning needs!
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.
