
Product Overview
The TX2400-FPC-5015 is a 2.4GHz built-in FPC (Flexible Printed Circuit) antenna engineered for space-constrained IoT device integration. With a 3.0 dBi peak gain, VSWR ≤ 1.5, and a compact 50 × 15 mm footprint, it delivers stable signal performance for WiFi 802.11b/g/n and Bluetooth 4.x/5.x applications. The industrial-grade adhesive backing and standard IPEX-1 (U.FL) connector enable fast, reliable assembly in smart home devices, wireless IoT terminals, and consumer electronics. Updated March 2026.

Technical Specifications

| Parameter | Technical Value |
|---|---|
| Frequency Range | 2400 – 2500 MHz (2.4 GHz ISM Band) |
| Peak Gain | 3.0 dBi |
| VSWR | ≤ 1.5 (Excellent Impedance Matching) |
| Impedance | 50 Ω |
| Connector Type | IPEX-1 (U.FL Compatible) |
| Cable Length | 120 mm (Low-Loss RF Cable) |
| Antenna Size | 50 × 15 mm (FPC Substrate) |
| Mounting | Industrial-Grade Adhesive Backing |
| Certification | CE / RoHS Compliant |
| Updated | March 2026 |
Product Details
Flexible FPC Material — Bend-to-Fit Design
Constructed from high-quality flexible printed circuit (FPC) substrate, the TX2400-FPC-5015 can be bent or conformed to curved internal surfaces of plastic enclosures. The industrial-grade adhesive backing ensures secure, vibration-resistant mounting without additional hardware — reducing assembly time in high-volume production.

IPEX-1 Connector — Low-Loss RF Integration
The 120 mm low-loss RF cable terminates in a standard IPEX-1 (U.FL) connector, directly compatible with mainstream WiFi and Bluetooth SoC modules including ESP32, RTL8720, and Nordic nRF52 series. The secure snap-lock mechanism maintains consistent impedance matching at 50 Ω, minimizing insertion loss across the 2.4 GHz band.

Professional Test Report
Measured with precision RF vector network analyzers. VSWR verified at ≤ 1.5 across 2400–2500 MHz, confirming high radiation efficiency and minimal reflected power. Return loss > 14 dB at center frequency 2450 MHz.


Ideal Applications
Smart Home Devices
Smart locks, lighting controllers, home security sensors, and WiFi-enabled appliances requiring compact internal antenna integration.
Industrial IoT Terminals
ZigBee coordinators, Bluetooth telemetry nodes, and WiFi data loggers in factory automation and building management systems.
Consumer Electronics
Wireless earbuds charging cases, portable speakers, handheld scanners, and wearable health monitors with space-constrained PCB layouts.
Agricultural Sensors
Environmental monitoring nodes, soil moisture sensors, and greenhouse climate controllers using 2.4 GHz mesh networks.
Resources
📄 Download Datasheet (PDF)FAQ
Q: Is the TX2400-FPC-5015 compatible with ESP32, RTL8720, and nRF52 modules?
A: Yes. The IPEX-1 (U.FL) connector is the industry-standard interface used on most 2.4 GHz WiFi and Bluetooth SoC modules, including Espressif ESP32, Realtek RTL8720, Nordic nRF52 series, and Silicon Labs EFR32. The antenna operates at 50 Ω impedance, matching the RF output of these modules directly without additional matching networks.
Q: Can this antenna be mounted on metal surfaces?
A: No. FPC antennas must be adhered to non-conductive surfaces such as plastic, glass, or ceramic. Mounting on or near metal will detune the antenna, significantly degrading gain and VSWR performance. For metal enclosures, consider an external whip or patch antenna with appropriate ground plane clearance.
Q: What is the operating temperature range and environmental rating?
A: The TX2400-FPC-5015 is rated for operation from −40°C to +85°C, suitable for both indoor consumer electronics and outdoor industrial enclosures. The FPC substrate and adhesive are resistant to humidity and minor vibration. For harsh outdoor deployments with direct moisture exposure, ensure the host device provides adequate IP-rated enclosure protection.
Q: Can the cable length be customized for OEM orders?
A: The standard configuration ships with a 120 mm low-loss RF cable. For OEM and bulk orders, custom cable lengths and alternative connector types (e.g., SMA, MMCX) are available upon request. Contact CDSENET with your volume requirements and target specifications.
Q: Does this antenna meet CE and RoHS compliance requirements?
A: Yes. The TX2400-FPC-5015 is CE marked and RoHS compliant, meeting EU electromagnetic compatibility (EMC) directives and hazardous substance restrictions. This makes it suitable for integration into end products targeting European markets. Compliance documentation is available via the datasheet download link above.