
Product Overview
The TX2400-PCB-4707 is a professional-grade 2.4 GHz omnidirectional PCB built-in antenna engineered for stable wireless communication in space-constrained IoT devices. With a 2.5 dBi peak gain, measured VSWR of 1.2758 @ 2.50 GHz, and a compact 47 × 7 mm PCB radiator, it delivers consistent signal performance for WiFi, Bluetooth, ZigBee, and 2.4 GHz proprietary protocols. The IPEX-1 (U.FL) interface with 110 mm feeder cable ensures broad module compatibility and low-loss signal transmission. Updated March 2026.

Technical Specifications
| Parameter | Technical Value |
|---|---|
| Frequency Range | 2400 – 2500 MHz (2.4 GHz ISM Band) |
| Peak Gain | 2.5 dBi |
| VSWR (S.W.R.) | ≤ 2.0 (Typ. 1.2758 @ 2.50 GHz) |
| Connector Type | IPEX-1 (U.FL Compatible) |
| Cable Length | 110 mm |
| Antenna Dimensions | 47 × 7 mm (PCB Radiator) |
| Antenna Material | PCB (FR4 substrate) |
| Radiation Pattern | Omnidirectional |
| Impedance | 50 Ω |
| Certification | RoHS Compliant |
| Updated | March 2026 |
Product Details
Compact 47 × 7 mm PCB Radiator for Internal Integration
The 47 × 7 mm PCB radiator enables direct internal mounting without external protrusions, preserving device enclosure integrity. The FR4 substrate provides dimensional stability across operating temperatures, making it suitable for both consumer electronics and industrial sensor nodes where space is at a premium.

IPEX-1 (U.FL) Connector with 110 mm Low-Loss Feeder Cable
The standard IPEX-1 interface is universally compatible with mainstream 2.4 GHz wireless modules including ESP32, nRF52, CC2652, and similar SoCs. The 110 mm feeder cable provides routing flexibility within device enclosures while maintaining low insertion loss for reliable signal transmission.
Professional Test Report
Measured VSWR: 1.2758 @ 2.50 GHz — verified with professional RF test equipment. All units are tested prior to shipment to ensure compliance with published specifications.


Ideal Applications
WiFi & Bluetooth
Smart home gateways, wireless smart locks, BLE beacons, and consumer IoT devices requiring compact internal antennas.
Industrial IoT
ZigBee sensor nodes, handheld data terminals, industrial wireless controllers, and factory automation endpoints.
Automotive & Fleet
In-vehicle 2.4 GHz telemetry modules, fleet tracking OBD dongles, and wireless diagnostics equipment.
Agriculture & Environment
Wireless soil sensors, greenhouse climate monitors, and agricultural IoT nodes operating on 2.4 GHz mesh networks.
Resources
📄 Download Datasheet (PDF)Frequently Asked Questions
Q: Is the TX2400-PCB-4707 compatible with ESP32, nRF52, and other 2.4 GHz modules?
A: Yes. The TX2400-PCB-4707 uses a standard IPEX-1 (U.FL) connector with 50 Ω impedance, which is directly compatible with the antenna ports on ESP32, ESP8266, nRF52840, CC2652, and most other 2.4 GHz SoCs. No impedance matching network is required. Verify that your module's RF port is rated for the 2400–2500 MHz band before connecting.
Q: Can this antenna be mounted inside a metal enclosure?
A: No. Metal enclosures attenuate 2.4 GHz signals significantly and will degrade antenna performance. The TX2400-PCB-4707 is designed for installation inside plastic (ABS, PC, or similar non-metallic) enclosures. Maintain a minimum clearance of 5 mm between the PCB radiator and any metallic components or ground planes to preserve the specified 2.5 dBi gain and VSWR ≤ 2.0.
Q: What is the operating temperature range and environmental rating?
A: The TX2400-PCB-4707 PCB substrate (FR4) supports an operating temperature range of –40 °C to +85 °C, suitable for both indoor consumer electronics and outdoor industrial enclosures. The antenna itself is not independently IP-rated; environmental sealing must be provided by the host device enclosure. For harsh outdoor deployments, ensure the enclosure meets at least IP54 or higher.
Q: How does the 2.5 dBi gain compare to a standard wire antenna?
A: A standard quarter-wave wire (whip) antenna typically achieves approximately 2.15 dBi. The TX2400-PCB-4707's 2.5 dBi gain provides a marginal but measurable improvement in radiated power and receive sensitivity. More importantly, the PCB form factor eliminates the mechanical fragility of wire antennas and enables consistent, repeatable performance across production units — a key advantage for volume IoT deployments.