With an impedance of 50 ohms, the antenna adheres to the industry standard for RF systems, ensuring compatibility with virtually all GPS receivers, LTE modems, and coaxial cables used in automotive applications. Impedance matching is essential for maximizing power transfer and minimizing signal reflection, which can cause standing waves and degrade performance. By maintaining 50-ohm impedance across both bands, the antenna integrates seamlessly with existing vehicle electronics, eliminating the need for additional matching components that would add complexity and cost. This compatibility is a key advantage for vehicle manufacturers and fleet operators, as it allows for easy retrofitting and integration into new models.

The antenna’s GPS gain of 28 dBi is a standout feature, enabling it to amplify weak satellite signals sufficiently for reliable reception in challenging environments. Gain measures the antenna’s ability to focus energy in a specific direction, and a high gain of 28 dBi ensures that even faint signals—such as those passing through tree cover, buildings, or vehicle metalwork—are amplified to a level that the receiver can process. This gain is achieved through a combination of the ceramic patch design and an integrated low-noise amplifier (LNA) with a noise figure typically below 1.5 dB. The LNA boosts the GPS signal while introducing minimal noise, ensuring that the receiver can maintain a stable lock on satellites even in urban canyons, tunnels, or dense foliage. For applications like vehicle tracking and navigation, this high gain translates to faster time-to-first-fix (TTFF), more accurate positioning, and fewer signal dropouts.

The GPS power supply requirement of 3~5V is designed to align with the electrical systems of modern vehicles, allowing the antenna to be powered directly from the vehicle’s 12V battery via a voltage regulator or from the GPS receiver itself. This flexible voltage range ensures compatibility with a wide range of GPS modules and vehicle electrical architectures, from older 12V systems to newer 48V setups in electric vehicles. The antenna’s low power consumption—typically a few hundred milliamps—prevents excessive battery drain, even during extended periods of operation. This is particularly important for fleet vehicles that may be parked for long periods, as it reduces the risk of a dead battery.

The antenna utilizes an RG174 Twin Cable (Black), a specialized coaxial cable designed to carry both GPS and LTE signals in a single, compact bundle. RG174 is a small-diameter cable (approximately 2.7 mm) with a stranded copper center conductor, a dielectric insulator, a braided copper shield (typically 95% coverage), and a durable PVC outer jacket. The twin cable design features two separate coaxial conductors within a single outer jacket, ensuring that GPS and LTE signals remain isolated and do not interfere with each other.

The black outer jacket is UV-resistant and flame-retardant, making it suitable for outdoor mounting, while the braided shields provide excellent protection against EMI/RFI interference from other vehicle electronics, such as engines, alternators, and infotainment systems. The flexibility of RG174 allows for easy routing through the vehicle’s interior, around structural components, and into the dashboard or trunk, where the GPS receiver and LTE modem are typically located. This ease of installation reduces labor costs and ensures that the antenna can be mounted in an optimal position—such as the roof—for maximum signal reception.

With dimensions of 60 * 51 * 16.6 mm, the antenna is compact enough to be mounted discreetly on a vehicle’s roof, trunk, or windshield without compromising aesthetics or aerodynamics. The low profile (16.6 mm thickness) minimizes wind resistance and noise, which is important for maintaining fuel efficiency and driver comfort. The 60 * 51 mm footprint provides sufficient surface area for the dual band radiating elements (GPS ceramic patch and LTE dipole or patch) while remaining small enough to avoid drawing attention. This compact size also makes the antenna suitable for a wide range of vehicle types, from small cars and SUVs to trucks and commercial vehicles, where space may be limited.

The operating and storage temperature range of -20°C to +60°C ensures that the antenna performs reliably in most climatic conditions. Vehicles are exposed to extreme temperatures, from freezing winters to scorching summers, and the antenna’s materials are selected to withstand these extremes. The ABS housing remains flexible at low temperatures, preventing cracking, while at high temperatures, it resists warping or melting. The brass connectors and internal electronics are designed to maintain conductivity and performance across the entire range, ensuring that the antenna continues to receive GPS signals and transmit LTE data even in the coldest or hottest environments. This temperature resilience makes the antenna suitable for use in virtually all geographic regions, from the Arctic Circle to the Sahara Desert.

Compliance with RoHS (Restriction of Hazardous Substances) underscores the antenna’s commitment to environmental safety and global regulatory standards. RoHS restricts the use of hazardous materials such as lead, mercury, and cadmium, ensuring that the antenna is safe for both users and the environment. This compliance is particularly important for vehicle manufacturers, as it allows the antenna to be sold in markets worldwide, including the European Union, China, and North America, without violating environmental regulations. For fleet operators and consumers, RoHS compliance provides assurance that the product is manufactured responsibly, with minimal impact on health and the environment.