
Product Overview
The TXGB-JKD-20 is a high-performance internal GNSS/GPS active antenna, specifically designed for precision positioning in space-constrained applications. Featuring a 28dB LNA gain and a precision-tuned ceramic radiator, it ensures rapid satellite acquisition and stable signal tracking. With its ultra-compact 20x20mm footprint and integrated IPEX connector, it is the ideal choice for portable IoT devices and vehicle tracking systems.

Technical Specifications
| Parameter | Technical Value |
|---|---|
| Frequency Range | 1575.42 MHz (GPS/GNSS) |
| LNA Gain | 28 ± 2 dB |
| VSWR | ≤ 2.0 |
| Connector Type | IPEX-1 (U.FL) |
| Ceramic Size | 20 mm * 20 mm * 6 mm |
| Cable Length | 90 mm (RG1.13) |
| Supply Voltage | 3.0V - 5.0V DC |
| Noise Figure | ≤ 1.5 dB |
Product Details
Integrated Low Noise Amplifier (LNA)
Equipped with a high-gain, low-noise active amplifier, the TXGB-JKD-20 can effectively compensate for cable loss and significantly improve GPS sensitivity in weak signal areas.

Ultra-Compact Ceramic Patch
The 20x20mm high-dielectric constant ceramic radiator provides excellent radiation efficiency while maintaining a minimal footprint for internal integration.
Professional Test Report
Verified Performance: Measured LNA gain of 28dB ensures reliable satellite locking even in complex EMI environments.


Ideal Applications
Portable IoT Devices
Asset trackers, handheld terminals, and wearable positioning devices.
In-Vehicle Systems
Internal GPS modules for dashcams, OBD trackers, and navigation units.
Resources
📄 Download Datasheet (PDF)FAQ
Q: Does this antenna require a power supply?
A: Yes, it is an active antenna. The host module must provide DC voltage (3.0V-5.0V) through the IPEX cable.
Q: How should I mount this antenna?
A: For best results, mount the ceramic side facing upwards towards the sky, away from metal obstructions.