en
The SMA Male Straight Crimp GPS Antenna is a high-sensitivity, multi-constellation GNSS receiver antenna engineered for vehicle navigation, marine chartplotters, fleet tracking, and precision timing applications. Featuring an integrated 25×25 mm or 35×35 mm ceramic patch element with low-noise amplifier (LNA), this antenna delivers reliable signal acquisition across GPS L1 (1575.42 MHz), GLONASS G1 (1602 MHz), BeiDou B1 (1561 MHz), and Galileo E1 (1575.42 MHz) bands.
Terminated with a straight SMA male crimp connector and pre-assembled 3-meter RG174 coaxial cable, the assembly ensures consistent 50 Ω impedance from the ceramic patch feed point to your GNSS receiver port without field soldering. The UV-stabilized ABS radome is rated IP67 for permanent outdoor mounting on vehicle roofs, boat masts, or industrial enclosures, while the integrated ground plane minimizes multipath interference in urban canyons and reflective environments.
Manufactured under ISO 9001 with 100% VSWR and LNA gain screening, every unit is RoHS and REACH compliant. OEM customization—cable length, connector type, LNA gain, ceramic patch size, and private labeling—is available from 500 pcs with rapid prototyping to accelerate your product certification and deployment timeline.
Parameter | Specification | ||
Frequency Range | GPS L1 1575.42 MHz / GLONASS G1 1602 MHz / BeiDou B1 1561 MHz / Galileo E1 1575.42 MHz | ||
Ceramic Patch Size | 25×25 mm / 35×35 mm (selectable) | ||
LNA Gain | 28 dB ± 2 dB (standard); 20–40 dB customizable | ||
Noise Figure | ≤ 1.5 dB | ||
VSWR | ≤ 1.5 @ 1575 MHz | ||
Impedance | 50 Ω | ||
Polarization | Right-Hand Circular (RHCP) | ||
Axial Ratio | ≤ 3 dB @ Zenith | ||
Output Power Supply | 3.0 – 5.0 V DC (via coax bias tee) | ||
Current Consumption | ≤ 15 mA @ 3.3 V | ||
Connector | SMA Male Straight Crimp | ||
Cable Type | RG174 (50 Ω) | ||
Cable Length | 3 m (standard); custom 0.5 m – 10 m | ||
Radome Material | UV-stabilized ABS | ||
Ingress Protection | IP67 | ||
Mounting | Magnetic / Adhesive / Screw / Threaded stud | ||
Operating Temperature | −40 °C to +85 °C | ||
Storage Temperature | −40 °C to +100 °C | ||
Certifications | RoHS / REACH Compliant | ||
Weight | Approx. 80 g (with 3m cable) | ||
● Multi-Constellation GNSS Support – Simultaneous reception of GPS, GLONASS, BeiDou, and Galileo L-band signals for faster TTFF, higher position accuracy, and improved availability in challenging environments.
● Integrated Low-Noise Amplifier – 28 dB LNA with ≤1.5 dB noise figure compensates for 3m RG174 cable loss (~3.3 dB at 1.5 GHz), ensuring strong signal delivery to the GNSS receiver without degradation.
● SMA Male Straight Crimp Termination – Industry-standard interface compatible with virtually all GNSS modules, trackers, and chartplotters; crimp construction guarantees reliable mechanical and electrical connection.
● IP67 Outdoor-Rated Enclosure – UV-stabilized ABS radome with silicone gasket seal protects against rain, salt spray, dust, and temperature extremes for permanent vehicle, marine, or industrial installation.
● RHCP Polarization with Low Axial Ratio – Optimized for satellite signal reception with minimal polarization mismatch loss; axial ratio ≤3 dB ensures consistent performance across elevation angles.
● OEM Customization Ready – Cable length, connector variant, LNA gain, patch size, and mounting method configurable from 500 pcs with HFSS simulation and anechoic chamber validation included.
● RoHS & REACH Compliant – Lead-free, halogen-free materials with full test documentation for seamless export to EU, North American, and Asia-Pacific markets.
●Vehicle navigation systems and aftermarket GPS head units
●Fleet management telematics and asset tracking devices
●Marine chartplotters, AIS receivers, and autopilot systems
●Precision agriculture guidance and auto-steer controllers
●Drone/UAV flight controllers and return-to-home safety systems
●Surveying RTK base stations and rover receivers
●Timing synchronization for telecom base stations and power grids
●Industrial IoT geofencing and location-based service platforms
●Emergency response vehicle dispatch and AVL systems
●Shared mobility e-bike/scooter tracking and anti-theft recovery
As a Fortune Global 500 supply-chain partner exporting to 80+ countries, Zhenjiang Binjiang Electronic delivers lot-to-lot RF consistency backed by ISO 9001 manufacturing and in-house anechoic chamber validation. Our 99% positive buyer feedback and 24/7 engineering support ensure your GPS antenna project moves from prototype to mass production without delay.
●Ceramic Patch: 18×18 / 25×25 / 35×35 / 45×45 mm selectable
●LNA Gain: 20 / 28 / 35 / 40 dB customizable per application
●Cable: RG174 / RG316 / RG58 / LMR100; length 0.5 m to 10 m
●Connector: SMA / RP-SMA / TNC / N-Type / FAKRA / H-MTD
●Mounting: Magnetic / Adhesive / Screw / Threaded M10/M12 stud
●Radome: ABS / Polycarbonate; custom Pantone color or logo printing
●Power Supply: 3.3V / 5V / 12V bias tee compatibility
●Filter Options: SAW filter integrated for LTE/5G interference rejection
●Branding: OEM logo / Neutral / Private label packaging
●Certification Support: CE / FCC / RoHS / REACH / IATF 16949 (automotive)
●MOQ: 1 pc (stock) / 500 pcs (OEM)
●Rapid Prototyping: Samples within 5–7 working days
Q1: Why does this GPS antenna include an LNA when using 3 meters of RG174 cable?
RG174 exhibits approximately 1.1 dB/m loss at 1.5 GHz, totaling ~3.3 dB over 3 meters. Without amplification, this attenuation would degrade weak satellite signals below the receiver’s sensitivity threshold. The integrated 28 dB LNA with ≤1.5 dB noise figure not only compensates for cable loss but also boosts the signal above the receiver’s noise floor, ensuring reliable lock even under partial sky obstruction.
Q2: Can I use this antenna with both 3.3V and 5V GNSS receivers?
Yes, the LNA operates from 3.0 V to 5.0 V DC supplied via the coaxial center conductor through a bias tee. This wide input range ensures compatibility with virtually all modern GNSS modules, including u-blox, Quectel, Telit, and MediaTek chipsets. For 12V automotive systems, we offer an optional inline voltage regulator adapter.
Q3: Is the IP67 rating sufficient for permanent marine installation exposed to salt spray?
Absolutely. The IP67-sealed ABS radome with silicone gasket has passed 500-hour salt fog testing per ASTM B117, simulating years of coastal/marine exposure. For open-ocean or submerged applications, we recommend upgrading to IP68 epoxy potting and stainless steel mounting hardware as OEM options.
Q4: How does the 25mm vs 35mm ceramic patch affect performance?
The 35×35 mm patch offers ~2 dB higher gain and better low-elevation satellite tracking due to larger effective aperture, making it ideal for fixed installations with clear sky view. The 25×25 mm patch provides adequate performance in a smaller footprint for space-constrained portable devices. Both sizes maintain VSWR ≤1.5 and axial ratio ≤3 dB across all supported constellations.
Q5: Can I replace the SMA connector with FAKRA for automotive OEM integration?
Yes, FAKRA Z-type connectors are standard OEM customization items for automotive telematics and infotainment systems. We also offer H-MTD, MATEnet, and proprietary automotive RF interfaces with color-coded housings per LVDS/FAKRA standards. MOQ for automotive connector variants is 500 pcs with PPAP documentation available upon request.
Q6: Does this antenna support RTK centimeter-level positioning?
This single-band L1 antenna supports RTK when paired with a compatible multi-band RTK receiver that uses L1 for ambiguity resolution. For survey-grade centimeter accuracy, we recommend our dual-band (L1+L5) active antenna series. However, for sub-meter DGPS/SBAS applications in fleet management and marine navigation, this L1 antenna delivers excellent performance at lower cost.
Q7: What testing is performed to ensure consistent GPS performance across production lots?
Every unit undergoes 100% VSWR screening, LNA gain/noise figure verification, and current consumption testing. Sample units from each batch are validated in our anechoic chamber for radiation pattern, axial ratio, and group delay. We maintain Cpk > 1.33 on critical parameters and provide full traceability reports with each shipment to guarantee lot-to-lot consistency.
Ready to integrate this SMA GPS antenna with 3m RG174 cable into your vehicle tracker, marine chartplotter, or IoT geolocation platform? Our RF engineers are standing by to assist with LNA gain optimization, connector swapping, cable-length adjustment, and rapid prototyping. Full technical datasheet and compliance documentation provided upon request.
📧 Email: minna_liao@bjdz.top
📱 WhatsApp / WeChat: +86 186 2128 3578
🌐 Alibaba Store: https://bjdz.en.alibaba.com/
Zhenjiang Binjiang Electronic Co., Ltd. – Global Leader in RF Solutions
English
