Pulse GNSS Stacked L1 Active Patch Antenna
Overview
The GNSSL1L5182530 from Pulse Electronics is a stacked L1-band active patch antenna with an integrated 30 dB LNA designed for GNSS reception. It is intended for L1-only GNSS signals and supports multiple constellations including GPS, GLONASS, Galileo, BeiDou and IRNSS. The integrated LNA makes it suitable for applications where improved sensitivity and a compact antenna form factor are required.
Why Choose This Part
Integrated 30 dB LNA increases receiver sensitivity and reduces the need for an external amplifier, simplifying BOM and board layout. The stacked patch design delivers a low-profile antenna suitable for surface mounting or small enclosures while supporting multiple GNSS constellations on the L1 band. Choosing an active antenna like this reduces design effort for RF matching and noise budgeting compared with using a passive element plus a separate LNA.
Applications
Getting Started
This is an active antenna - review the Pulse Electronics datasheet for the mechanical footprint, coaxial connector/pinout, and required DC bias for the LNA. Use a 50 ohm RF feed, provide DC bias via the receiver's antenna power output or a bias-tee, and follow antenna placement best practices (clearance from large metal, proper orientation). Test performance with a GNSS receiver and in the intended enclosure to validate gain and multipath behavior.
