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Cdsenet TXGB-FPC-3615 GPS BeiDou FPC Antenna 3.0 dBi IPEX-1 36×15mm
Cdsenet TXGB-FPC-3615 GPS BeiDou FPC Antenna 3.0 dBi IPEX-1 36×15mm
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SKU:txgb-fpc-3615
Product Overview
The TXGB-FPC-3615 is a compact built-in FPC (Flexible Printed Circuit) antenna engineered for GPS L1 (1575.42 MHz) and BeiDou B1 (1561.098 MHz) satellite positioning systems. Measuring just 36 × 15 mm with a 3.0 dBi peak gain and VSWR ≤ 1.5, it delivers reliable signal acquisition in space-constrained designs. The standard IPEX-1 (U.FL) connector with a 140 mm coaxial feeder ensures drop-in compatibility with mainstream GNSS modules. Suited for automotive navigation, IoT asset tracking, and handheld terminals. Updated March 2026.
Technical Specifications
| Parameter | Technical Value |
|---|---|
| Frequency Range | 1575.42 MHz (GPS L1) / 1561.098 MHz (BDS B1) |
| Peak Gain | 3.0 dBi |
| VSWR | ≤ 1.5 |
| Connector / Interface | IPEX-1 (U.FL, Generation 1) |
| Feeder Cable Length | 140 mm (customizable) |
| Antenna Material | FPC (Flexible Printed Circuit) |
| Dimensions | 36 mm × 15 mm |
| Polarization | Linear |
| Impedance | 50 Ω |
| Operating Temperature | −40 °C to +85 °C |
| Compliance | RoHS |
| Last Updated | March 2026 |
Product Details
Ultra-Thin FPC Substrate — Flexible Installation
The flexible printed circuit substrate (thickness < 0.3 mm) conforms to curved surfaces and fits inside enclosures where rigid PCB antennas cannot. Bending radius down to 5 mm enables routing around internal components without signal degradation, making it the preferred choice for slim wearables, handheld GPS terminals, and compact vehicle trackers.
Gold-Plated IPEX-1 Connector — Stable Signal Transmission
The gold-plated U.FL (IPEX Gen-1) connector maintains contact resistance below 0.03 Ω across 30+ mating cycles, ensuring consistent 50 Ω impedance matching to GNSS modules such as u-blox M8/M10, Quectel LC29H, and MediaTek MT3333. The 140 mm RG1.13 coaxial feeder introduces < 0.5 dB insertion loss at 1575 MHz.
Ideal Applications
🚗 Automotive Navigation
In-dash GPS, bus stop announcers, taxi dispatch systems, and OBD fleet trackers requiring compact embedded antennas.
📦 Asset & Logistics Tracking
Pallet trackers, cold-chain monitors, and container GPS loggers where thin-profile antennas fit inside sealed enclosures.
🏭 Industrial IoT Sensors
Geo-fenced equipment monitoring, precision agriculture GPS nodes, and smart metering devices operating in −40 °C to +85 °C environments.
⌚ Wearables & Handhelds
Smartwatches, personal GPS trackers, and handheld survey terminals that demand minimal antenna footprint without sacrificing positioning accuracy.
Resources
📄 Download Datasheet — TXGB-FPC-3615 (PDF)Frequently Asked Questions
Q: Which GNSS modules is the TXGB-FPC-3615 compatible with?
A: The TXGB-FPC-3615 uses a standard IPEX-1 (U.FL) connector with 50 Ω impedance, making it directly compatible with most commercial GNSS modules including u-blox M8030/M10050, Quectel LC29H/L76K, SIMCom SIM28, and MediaTek MT3333-based designs. No impedance matching network is required when VSWR ≤ 1.5 is maintained at 1575.42 MHz.
Q: Can the TXGB-FPC-3615 be installed inside a metal enclosure?
A: No. Metal surfaces within 5 mm of the FPC radiating element will detune the antenna and significantly reduce gain. The antenna must be mounted on or inside a non-metallic (plastic, ABS, PC) housing. If a metal enclosure is required, route the feeder cable to position the antenna element outside or on a non-metallic window panel.
Q: Is the 140 mm feeder cable length customizable for OEM projects?
A: Yes. The standard feeder length is 140 mm (RG1.13 coaxial cable). Custom lengths are available for OEM orders — shorter cables reduce insertion loss, while longer cables (up to ~300 mm) remain viable with < 1 dB additional loss at 1575 MHz. Contact our sales team with your target length and connector type for a custom quotation.
Q: What is the operating temperature range and environmental durability?
A: The TXGB-FPC-3615 is rated for −40 °C to +85 °C operation, covering automotive under-hood and outdoor industrial environments. The FPC substrate is RoHS-compliant and resistant to common solvents used in PCB assembly. For high-humidity or outdoor deployments, encapsulate the antenna element with conformal coating or mount it inside a sealed IP-rated enclosure.
Q: Does this antenna support both GPS and BeiDou simultaneously?
A: The TXGB-FPC-3615 covers 1575.42 MHz (GPS L1 / Galileo E1) and 1561.098 MHz (BDS B1) within its −3 dB bandwidth. Dual-constellation reception (GPS + BDS) depends on the GNSS chipset capability — the antenna itself is passive and does not limit constellation selection. Pairing with a multi-constellation module such as the u-blox M10 enables simultaneous GPS + BeiDou + Galileo tracking.