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10PCS Cdsenet TX2400-PCB-4811 2.4GHz PCB Antenna 3.0dBi IPEX for Wireless IOT Device Compact Size
10PCS Cdsenet TX2400-PCB-4811 2.4GHz PCB Antenna 3.0dBi IPEX for Wireless IOT Device Compact Size
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SKU:10*TX2400-PCB-4811
Product Overview
The TX2400-PCB-4811 is a professional-grade 2.4 GHz omnidirectional PCB built-in antenna with a distinctive "7" shape layout measuring 48 × 11 mm. It delivers a 3.0 dBi peak gain and a measured VSWR of 1.1268 @ 2.45 GHz (verified with Agilent E5071C), making it one of the more efficient compact PCB antennas in the 2.4 GHz ISM band. The IPEX (U.FL) connector with 150 mm feeder cable provides broad compatibility with WiFi, Bluetooth, ZigBee, and 2.4 GHz proprietary wireless modules. Updated March 2026.
Technical Specifications
| Parameter | Technical Value |
|---|---|
| Frequency Range | 2400 – 2500 MHz (2.4 GHz ISM Band) |
| Peak Gain | 3.0 dBi |
| VSWR (S.W.R.) | ≤ 1.5 (Typ. 1.1268 @ 2.45 GHz) |
| Connector Type | IPEX / IPX (U.FL Compatible) |
| Cable Length | 150 mm |
| Antenna Dimensions | 48 × 11 mm ("7" Shape PCB) |
| Antenna Material | PCB (Flexible Internal) |
| Radiation Pattern | Omnidirectional |
| Impedance | 50 Ω |
| Certification | RoHS Compliant |
| Updated | March 2026 |
Product Details
"7" Shape 48 × 11 mm PCB Layout for Space-Constrained Designs
The unique "7" shape PCB geometry maximizes radiating element length within a 48 × 11 mm footprint, achieving 3.0 dBi gain — 0.5 dBi higher than the standard TX2400-PCB-4707 — without increasing overall device volume. This makes it well-suited for compact IoT enclosures where antenna real estate is limited but signal performance cannot be compromised.
IPEX (U.FL) Connector with 150 mm Feeder Cable
The standard IPEX/IPX connector is directly compatible with U.FL sockets on ESP32, nRF52, CC2652, MT7628, and similar 2.4 GHz SoCs. The 150 mm cable — 40 mm longer than the TX2400-PCB-4707 — provides additional routing flexibility for larger enclosures or designs where the antenna must be positioned away from RF-noisy components such as switching regulators or USB controllers.
Professional Test Report
Verified with Agilent E5071C vector network analyzer: VSWR measured at 1.1268 @ 2.45 GHz, well within the ≤ 1.5 specification. All units are tested prior to shipment.
Ideal Applications
WiFi & Bluetooth
Smart home gateways, BLE beacons, wireless smart locks, and consumer IoT devices requiring compact high-gain 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 on 2.4 GHz mesh networks.
Resources
📄 Download Datasheet (PDF)Frequently Asked Questions
Q: Is the TX2400-PCB-4811 compatible with ESP32, nRF52, and other 2.4 GHz modules?
A: Yes. The TX2400-PCB-4811 uses a standard IPEX/IPX (U.FL) connector with 50 Ω impedance, directly compatible with the antenna ports on ESP32, ESP8266, nRF52840, CC2652, MT7628, and most other 2.4 GHz SoCs. No external matching network is required. Confirm your module's RF port supports the 2400–2500 MHz band before connecting.
Q: Can this antenna be installed inside a metal enclosure?
A: No. Metal enclosures significantly attenuate 2.4 GHz signals and will degrade the antenna's 3.0 dBi gain and VSWR performance. Mount the TX2400-PCB-4811 inside a plastic (ABS, PC, or similar non-metallic) enclosure. Maintain at least 5 mm clearance between the PCB radiator and any metallic components or ground planes to preserve specified performance.
Q: What is the operating temperature range and environmental durability?
A: The TX2400-PCB-4811 PCB substrate 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 TX2400-PCB-4811 (3.0 dBi) compare to the TX2400-PCB-4707 (2.5 dBi)?
A: The TX2400-PCB-4811 provides 0.5 dBi higher gain, achieved through its "7" shape radiator geometry which extends the effective electrical length within a slightly larger 48 × 11 mm footprint (vs. 47 × 7 mm). It also achieves a lower typical VSWR of 1.1268 vs. 1.2758, indicating better impedance matching at 2.45 GHz. Choose the 4811 when gain and matching performance are the priority; the 4707 when board space is the primary constraint.