The Ebyte TX2400-JZ-3 is a precision-tuned 2.4GHz mini rubber antenna equipped with a standard SMA-J connector, designed for 50-ohm impedance matching across the 2.4GHz ISM band. Delivering 2.0dBi gain in an ultra-compact form factor, it ensures reliable omnidirectional signal transmission for Ebyte 2.4GHz wireless modules, BLE nodes, and Wi-Fi edge gateways in compact industrial IoT deployments.
| Parameter Name | Specification / Value | Technical Details |
|---|---|---|
| Product Model | TX2400-JZ-3 | Compact mini rubber antenna |
| Operating Frequency | 2.4 GHz (2400 - 2500 MHz) | Global license-free 2.4G ISM band |
| Antenna Gain | 2.0 dBi | Omnidirectional radiation pattern |
| Connector Type | SMA-J (SMA Male) | Internal threads with center male pin |
| Nominal Impedance | 50 Ohms | Precision-tuned 50-ohm RF impedance match |
| Form Factor & Housing | Mini Rubber Duct | High-durability flexible elastomer shell |
| Module Compatibility | Ebyte 2.4GHz Series | Compatible with E01, E103, E104, E73 series |
Key Features
Precision Tuning
Factory-calibrated using precision instruments to ensure optimal SWR ≤1.5 across the 2.4GHz band.
Universal Compatibility
SMA-J interface (female internal thread/male center pin) fits all Ebyte 2.4GHz wireless modules.
Flexible Installation
Rubber housing allows directional positioning while maintaining 2.0dBi omnidirectional gain.
Technical Specifications
- Frequency: 2.4GHz ISM band
- Connector: SMA-J (female)
- Impedance: 50Ω
- Gain: 2.0dBi
- VSWR: ≤1.5
- Polarization: Omnidirectional
Practical Application Scenarios)
1. Compact Handheld Terminals and Industrial Wireless Scanners
In portable handheld inventory scanners and mobile maintenance equipment, interior space is extremely constrained. The TX2400-JZ-3 mini rubber antenna connects seamlessly to Ebyte E73 series BLE or ZigBee embedded modules via an SMA-K bulkhead interface. Its stubby 2.0dBi omnidirectional profile prevents physical snagging during handheld operation while delivering stable short-to-medium range 2.4GHz radio links to warehouse access points.
2. Desktop Edge Gateways and Compact Smart Metering Hubs
For indoor environmental monitoring and automated smart metering hubs, desktop gateways powered by Ebyte E103 series Wi-Fi modules require consistent signal coverage without bulky external antennas. Installed directly onto the rear panel SMA interface, the TX2400-JZ-3 provides balanced 360-degree horizontal radiation coverage in a clean, space-saving desktop footprint.
3. High-Density Industrial Control Enclosures and AGV Sensor Nodes
Inside crowded electrical control panels or autonomous guided vehicle (AGV) chassis, long whip antennas are vulnerable to mechanical vibration and physical impacts. When paired with Ebyte E01 series 2.4GHz RF transceiver modules inside metallic enclosures, the TX2400-JZ-3 extends outside the cabinet wall via an IPEX-to-SMA adapter cable, offering reliable 50-ohm RF matching and rugged physical durability.
FAQ Section
1. What does the SMA-J connector designation mean, and how do I verify pin compatibility with my module?
In standard RF terminology, SMA-J specifies an SMA Male connector equipped with internal threads and a central male contact pin. To ensure proper physical and electrical mating with the TX2400-JZ-3 antenna, your host enclosure bulkhead or module adapter cable must feature an SMA-K (SMA Female) connector with external threads and a center receptacle pin.
2. How does an omnidirectional 2.0dBi mini antenna perform compared to high-gain whip antennas in indoor IoT environments?
A 2.0dBi mini antenna produces a nearly spherical 360-degree radiation pattern, making it highly resilient in multipath indoor environments where signals reflect off walls and machinery. While high-gain antennas flatten the RF beam horizontally for long-distance line-of-sight propagation, the 2.0dBi TX2400-JZ-3 provides superior short-to-medium range link coverage from any spatial orientation.
3. Why is 50-ohm impedance matching critical when pairing the TX2400-JZ-3 with Ebyte 2.4GHz modules?
Ebyte 2.4GHz wireless transceivers are engineered with a 50-ohm characteristic RF output impedance. Connecting a precision-matched 50-ohm antenna like the TX2400-JZ-3 minimizes Voltage Standing Wave Ratio (VSWR), preventing signal reflection, reducing transmission power loss, and protecting the internal transceiver power amplifier from thermal strain.
