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TX4G-FPC-5324 4G LTE FPC Built-in Antenna 3dBi IPEX 698-2700MHz
TX4G-FPC-5324 4G LTE FPC Built-in Antenna 3dBi IPEX 698-2700MHz
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SKU:tx4g-fpc-5324
Product Overview
The TX4G-FPC-5324 is a professional-grade 4G/LTE flexible printed circuit (FPC) built-in antenna engineered for high-stability cellular communication in compact IoT devices. It delivers a 3.0 dBi peak gain across a wide dual-band frequency range of 698–960 MHz and 1710–2700 MHz, covering all major 4G/LTE bands globally. The ultra-slim 53 × 24 mm form factor with a 120 mm IPEX-1 coaxial cable enables seamless integration into routers, DTUs, modems, and industrial IoT terminals. Updated March 2026.
Technical Specifications
| Parameter | Technical Value |
|---|---|
| Frequency Range | 698–960 MHz / 1710–2700 MHz (4G/LTE Full Band) |
| Peak Gain | 3.0 dBi |
| VSWR | ≤ 1.5 (Excellent Impedance Matching) |
| Interface Type | IPEX-1 (MHF I / U.FL Compatible) |
| Cable | 1.13 mm coaxial, 120 mm length |
| Dimensions | 53 × 24 mm |
| Substrate | Flexible Printed Circuit (FPC) |
| Impedance | 50 Ω |
| Max Input Power | 10 W |
| Operating Temperature | -40°C to +85°C |
| Certification | CE / RoHS Compliant |
| Updated | March 2026 |
Product Details
Flexible FPC Substrate — Space-Saving Integration
Manufactured on a premium flexible printed circuit substrate, the TX4G-FPC-5324 can be bent, folded, or adhered to the inner shell of non-metallic enclosures without signal degradation. This eliminates the need for external antenna mounts, saving critical PCB and enclosure space in compact IoT designs.
IPEX-1 Connector with Low-Loss 1.13 mm Coaxial Cable
The standard IPEX-I (MHF I / U.FL compatible) interface paired with a 1.13 mm coaxial cable ensures minimal signal loss during transmission. This combination provides broad compatibility with mainstream 4G/LTE modules from Quectel, SIMCom, Telit, and Sierra Wireless, making it a drop-in solution for most cellular IoT designs.
Professional Test Report
Verified with Agilent E5071C Vector Network Analyzer: VSWR ≤ 1.5 maintained across the full 698–2700 MHz 4G frequency range. Return loss and radiation pattern data available in the datasheet.
Ideal Applications
4G Routers & Gateways
Supports all major carrier bands (B1/B3/B5/B7/B8/B20/B28) for wireless routers, CPE, and mobile hotspots.
Industrial IoT & DTU
Deployed in 4G DTUs, SCADA telemetry, and industrial modems requiring reliable cellular uplink in -40°C to +85°C environments.
Smart Metering & Agriculture
Used in NB-IoT/LTE-M smart meters, soil sensors, and environmental monitoring nodes for wide-area data collection.
Fleet & Asset Tracking
Integrated into vehicle GPS trackers and asset management devices requiring compact, low-profile 4G antennas.
Resources
📄 Download TX4G-FPC-5324 Datasheet (PDF)Frequently Asked Questions
Q: Which 4G/LTE modules is the TX4G-FPC-5324 compatible with?
A: The TX4G-FPC-5324 uses a standard IPEX-1 (MHF I / U.FL) connector and 50 Ω impedance, making it directly compatible with modules from Quectel (EC21, EC25, EG25), SIMCom (SIM7600, SIM7000), Telit, and Sierra Wireless. It covers all major LTE bands (B1, B3, B5, B7, B8, B20, B28) across 698–2700 MHz, suitable for global deployments.
Q: How should the antenna be installed inside a device enclosure?
A: The FPC antenna can be adhered to the inner surface of any non-metallic (plastic, ABS, PC) enclosure using the self-adhesive backing. Ensure a minimum clearance of 5 mm from metallic components and ground planes to avoid detuning. Route the 120 mm IPEX-1 cable to the module connector without sharp bends (minimum bend radius: 5 mm) to maintain signal integrity.
Q: Can this antenna operate in harsh outdoor or industrial environments?
A: Yes. The TX4G-FPC-5324 is rated for an operating temperature range of -40°C to +85°C, making it suitable for industrial and outdoor applications when housed inside a sealed enclosure. The FPC substrate is RoHS compliant and resistant to standard humidity conditions. For direct outdoor exposure, an IP-rated enclosure is recommended.
Q: Does this antenna support 5G NR bands?
A: The TX4G-FPC-5324 covers up to 2700 MHz, which includes some 5G Sub-6GHz bands (n1, n3, n7, n8) used in non-standalone (NSA) 5G deployments. However, it is primarily optimized and tested for 4G/LTE performance. For dedicated 5G NR coverage including n77/n78 (3.5 GHz), a purpose-built 5G antenna is recommended.
Q: Is custom cable length or connector type available?
A: Yes. While the standard configuration is 120 mm with an IPEX-1 connector, custom cable lengths and alternative connectors (IPEX-4 / MHF IV, SMA, etc.) are available for bulk OEM orders. Contact our team with your project specifications for a custom quotation.