The antenna’s operating temperature range of -20°C to +85°C and storage temperature range of -20°C to +65°C ensure that it can perform reliably in a wide variety of environments. This makes it suitable for use in both indoor and outdoor applications, from temperature-controlled industrial facilities to harsh outdoor environments where devices are exposed to extreme temperatures. The ceramic material and FR4 PCB are both highly resistant to temperature-induced degradation, maintaining their electrical and mechanical properties across this range. For example, the ceramic’s dielectric constant remains stable, ensuring that the antenna’s resonant frequency does not shift significantly with temperature changes—critical for maintaining performance in RTK systems.
This temperature resilience is particularly important for built-in antennas, which are often enclosed within a device’s housing and may be exposed to heat generated by other components such as processors or batteries. The antenna’s ability to operate at up to +85°C ensures that it can withstand these thermal conditions without performance loss, making it suitable for use in high-power devices such as industrial sensors and drone flight controllers.
With a size of 25 x 25 x 4mm, this antenna is designed for maximum space efficiency, making it ideal for built-in applications where space is limited. The compact footprint allows it to be integrated into small navigation modules, GNSS receivers, and other devices without adding significant bulk. For example, in a compact drone’s flight controller, which may measure just a few centimeters in size, the antenna’s 25mm x 25mm dimensions fit easily alongside other components such as accelerometers, gyroscopes, and microprocessors.
The 4mm thickness is also critical for integration into slim devices, such as wearable navigation tools or thin GNSS receivers. This low profile ensures that the antenna does not protrude from the device’s housing, maintaining a sleek appearance and avoiding interference with other components or user interaction. Despite its small size, the antenna’s design ensures that it maintains a sufficient radiating area to capture satellite signals, striking a balance between compactness and performance that is essential for built-in applications.
The antenna is equipped with an RF1.37mm coaxial cable with a length of 100mm, a design choice that balances flexibility and signal integrity. The 1.37mm diameter cable is thin enough to be routed through tight spaces within a device, such as between circuit boards or along the edges of a housing, without adding bulk. This flexibility is critical for built-in antennas, which must be connected to receivers or modules that may be located several centimeters away within the device.
The 100mm length is carefully chosen to minimize signal loss (attenuation) while providing enough flexibility for routing. A longer cable would introduce excessive loss at GNSS frequencies, while a shorter cable would limit routing options. The coaxial design ensures that the signal is shielded from electromagnetic interference (EMI) generated by other components within the device, such as processors, motors, or power supplies. This shielding is essential for maintaining signal integrity in the electrically noisy environment of a compact electronic device, where EMI can degrade weak satellite signals and compromise RTK accuracy.
The antenna is designed for applications including navigation modules, GNSS receivers, and OEM use, reflecting its versatility and suitability for integration into a wide range of products. In navigation modules, the antenna provides the critical RF link between the module and satellite constellations, enabling precise positioning for applications such as autonomous robotics, where the module must guide the robot with centimeter-level accuracy. In GNSS receivers, the antenna ensures that the receiver can capture and process satellite signals, providing the raw data needed for RTK calculations.
For OEM use, the antenna’s compact size, standardized connectivity, and consistent performance make it an ideal component for mass-produced devices. OEMs can integrate the antenna into their products with minimal modification, leveraging its IPX connector and 50-ohm impedance to connect to standard receivers and modules. This reduces development time and costs, allowing OEMs to bring their products to market faster.
The antenna also supports OEM/ODM services, meaning that manufacturers can customize it to meet specific design requirements. This includes modifications to the cable length, connector type, or even the antenna’s dimensions, ensuring that it fits perfectly into a particular device. For example, a drone manufacturer may require a longer cable to route the antenna to an optimal position on the drone’s frame, while a consumer electronics company may need a custom connector to match their proprietary receiver. This flexibility makes the antenna a versatile solution for a wide range of applications, from industrial sensors to consumer gadgets.
The built-in RTK GPS ceramic antenna finds practical application in a diverse range of products and industries, each leveraging its compact size and reliable performance:
Drones and UAVs: In drones, the antenna is integrated into the flight controller or navigation module, providing the precise positioning data needed for stable flight, autonomous navigation, and accurate mapping. The compact size ensures that it does not add unnecessary weight or bulk, while the IPX connector simplifies integration into the drone’s electronics.
Robotics: Autonomous robots, whether used in warehouses, factories, or agriculture, rely on RTK GPS for precise localization. The antenna’s small size allows it to be embedded within the robot’s control system, while its linear polarization ensures consistent performance when the robot is in a fixed orientation relative to the sky.
Industrial Sensors: Sensors used in construction, surveying, or asset tracking often require RTK capabilities to provide accurate location data. The antenna’s compact design allows it to be integrated into these sensors, which are often deployed in remote or harsh environments, where its temperature resilience ensures reliable operation.
Consumer Electronics: Wearable devices, such as smartwatches or fitness trackers with navigation capabilities, benefit from the antenna’s small size and low profile. The built-in design ensures that the device remains sleek and comfortable to wear, while the RTK capabilities provide accurate location tracking for outdoor activities.
Automotive Systems: In advanced driver-assistance systems (ADAS) and autonomous vehicles, compact RTK antennas are used to complement other sensors (such as LiDAR and cameras) by providing precise positioning data. The antenna’s integration into the vehicle’s navigation module ensures that it does not interfere with the vehicle’s aesthetics or aerodynamics.
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