Product overview
The JND ST-38-AGH1 from Shenzhen JND Technology Co., Ltd is a portable external active GNSS antenna intended for trackers, navigation devices and autonomous vehicles. Its dual-band architecture uses a single antenna feed pin to generate two frequency modes while maintaining right-hand circular polarization and a low axial ratio. Coverage includes GPS L1, L2 and L5 alongside BeiDou B1 and B2. The patch element’s operating range can be selected according to customer requirements.
For integration with receiving equipment, the antenna provides an SMA female output connector for connection to an RF cable. Its single-feed arrangement addresses simple circuit-board footprint layouts and low-cost design requirements. The active RF chain uses the LNA+Dual SAWSAW+PD+LNA arrangement to improve GNSS RF sensitivity and signal-to-noise ratio, with a favorable noise figure and constant high gain across the full band. This combines the antenna’s satellite-signal reception function with active RF conditioning.
