The Ebyte TX4G-JKS-IPX20 4G LTE Wireless Communication Antenna is a high-performance, industrial-grade bendable glue stick omnidirectional RF transceiver antenna engineered for global 4G LTE/LTE-M frequency bands, delivering an optimized 5.0dBi high-gain rating with a low Voltage Standing Wave Ratio ($VSWR \le 1.5$) and a standardized 50-ohm characteristic impedance to minimize return loss, featuring an integrated 200mm low-loss coaxial RF feeder cable terminated with a standard IPEX-1 (U.FL) connector to establish direct, low-attenuation matching for high-speed SPI RF modules without firmware (such as Ebyte's E01-series SPI transceivers) and standalone MCU-integrated AT-command wireless transceivers (such as the E77, E104, and E220 series SoC modules) during long-range open area tests in remote monitoring, smart utility telemetry, DIN-rail serial servers, and outdoor agricultural sensor networks.
| Spec Category | Parameter Dimension | TX4G-JKS-IPX20 |
| Basic Hardware Specs | Antenna Design Type | Bendable Glue Stick (Omnidirectional) |
| Total Vertical Height | Approximately 197 mm | |
| RF Connector Interface | Onboard IPEX-1 (1st Gen U.FL) | |
| Coaxial Feeder Cable | Integrated 200 mm low-loss cable | |
| Characteristic Impedance | 50 | |
| RF Performance | Target Frequency Band | Full-Band 4G LTE (Cellular/NB-IoT) |
| Antenna Gain | 5.0 dBi (Peak Efficiency) | |
| Voltage Standing Wave Ratio | 1.5 (Low insertion loss) | |
| Max LOS Range | Enhanced propagation over standard Open Area Test fields | |
| Communication Function | SPI RF Module Compatibility | Optimized for Ebyte E01-series (SPI hardware transceivers without built-in MCU/firmware) |
| SoC AT-Command Support | Native match for E77/E104/E220 SoC transceivers with integrated firmware | |
| Supported Network Protocols | LTE-M, NB-IoT, Cat-1, Cat-4, 2.4G Wi-Fi/BLE | |
| Industrial Adaptation | Operating Temp Range | -40 to +85 (Industrial-Grade) |
| Mechanical Articulation | 0° to 90° adjustable bendable joint | |
| Combo Matching SKUs | Available as standalone antenna or packaged as a combo kit with Ebyte cellular modems/DTUs |
Industrial Application Scenarios
Scenario 1: North American Smart Agriculture Telematics
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Regional Industry Pain Points: Large-scale farms in North America require highly reliable, outdoor-rated gateways to aggregate data from distributed Sub-GHz soil sensors, weather stations, and RTK GPS guidance systems. These nodes often face extreme seasonal temperature swings (from winter freezes to high summer heat), dust, static charges from machinery, and lack reliable wired internet, necessitating cellular backhaul.
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Ebyte Technical Solution: The Ebyte TX4G-JKS-IPX20 features an industrial-grade, UV-stabilized glue stick housing that operates flawlessly between $-40^\circ\text{C}$ and $+85^\circ\text{C}$. Its integrated 200mm low-loss IPEX-1 cable connects directly to internal LTE modems or long range LoRa modules without requiring extra adapter connections. This minimizes signal attenuation during open area testing and maintains stable cellular connectivity for solar-powered field gateways.
Scenario 2: European Distributed Power Grid & Smart Metering Concentrators
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Regional Industry Pain Points: European electrical grids are increasingly decentralized. Substations and smart metering networks need secure, localized processing nodes that can interface with legacy Modbus/RTU meters, modern CAN-bus grid assets, and transmit telemetry securely back to central utilities via high-speed fiber or cellular VPNs inside dense metal distribution cabinets that block RF signals.
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Ebyte Technical Solution: With its slim profile and integrated 200mm flexible feeder line, the TX4G-JKS-IPX20 can be routed through a chassis pass-through directly to the internal PCB's IPEX-1 receptacle. This eliminates bulky bulkhead adapters and matches perfectly with Ebyte's DIN rail DTU gateways. Its strict $\le 1.5$ VSWR rating ensures high power-transfer efficiency and minimizes reflected waves, maintaining clean, uninterrupted data transfers across regional EU cellular bands.
Scenario 3: Southeast Asian Distributed Urban Flood Monitoring & Water Telemetry
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Regional Industry Pain Points: Urban water-level monitoring stations throughout Southeast Asia must withstand extreme humidity, seasonal monsoons, and high temperatures. Water monitoring nodes often use low-power WAN protocols (LPWAN) to run on battery power for years. Any RF impedance mismatch at the antenna interface leads to excessive power consumption, rapidly draining the node's battery and causing critical sensor failures.
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Ebyte Technical Solution: Designed with a strict 50-ohm impedance and highly consistent manufacturing tolerances, this 5.0dBi high-gain antenna ensures maximum power transfer from low-power transceivers. By matching this antenna with Ebyte's SPI RF modules without firmware (such as the E01 series) or low-power BLE multi-slave modules (such as the E104 series), embedded developers can tune the transceiver's output matching network precisely to lower transmission current draw. This maximizes battery life in remote, wet environments.
FAQ Section
Q1: Can the TX4G-JKS-IPX20 antenna be used with Ebyte's E01-series SPI transceivers that have no built-in firmware?
A1: Yes. The TX4G-JKS-IPX20 is fully compatible with Ebyte E01-series SPI hardware modules (which contain no built-in MCU or protocol stack). Because these modules require manual RF register adjustments on the host microcontroller, using an antenna with a stable, verified 50-ohm impedance and is critical. This high-efficiency impedance matching prevents power reflection back into the power amplifier (PA) of the SPI module, protecting your custom RF layouts and ensuring clean transmission during open-field testing.
Q2: Is this antenna suitable for Sub-GHz long-range LoRa networks (e.g., 868MHz in Europe or 915MHz in North America)?
A2: The TX4G-JKS-IPX20 is optimized for the wider frequency ranges of cellular 4G LTE/LTE-M bands. For dedicated Sub-GHz applications using Ebyte’s E220/E22 series long range LoRa modules operating on 868MHz or 915MHz, we recommend using our specialized Sub-GHz antennas to ensure optimal resonance. However, if your gateway uses a multi-protocol design that combines 4G backhaul with local Sub-GHz networks, this antenna is perfect for the 4G cellular uplink side of the system.
Q3: How does the integrated 200mm IPEX-1 (U.FL) cable help reduce insertion loss compared to external adapters?
A3: Every RF connector, adapter, and transition interface in your system adds insertion loss (often to per joint). By integrating a 200mm high-grade coaxial feeder cable directly into the antenna base, the TX4G-JKS-IPX20 connects directly to your PCB's IPEX-1 receptacle. This eliminates the need for external SMA-to-IPEX adapter cables, reducing total signal path attenuation and increasing the overall link budget for long-distance transmissions.
Q4: Will this antenna survive outdoor industrial environments with extreme temperatures?
A4: Absolutely. This antenna is designed for reliable, continuous operation in demanding environments. It features an industrial operating temperature range of to . The heavy-duty "glue stick" outer shell is UV-stabilized to prevent cracking and fading under direct sunlight, and the internal components are sealed to prevent moisture ingress, making it ideal for outdoor monitoring systems, smart cities, and agricultural gateways.
Q5: Do you provide certified test reports or 2D/3D CAD files for mechanical enclosure design?
A5: Yes. Ebyte provides complete technical support for hardware design, including VSWR plots, return loss curves, radiation patterns, and 2D/3D CAD models of the TX4G-JKS-IPX20. These files let you integrate the antenna's 197mm physical clearance and 200mm cable routing into your custom enclosures quickly, ensuring a smooth path from prototyping to volume production.
