Dual-band GNSS antenna for L1/L5 by Taoglas

Taoglas has recently unveiled the GVLB208 Series, a family of active and passive dual-band GNSS antennas designed for compact L1/L5 positioning applications. The series features a stacked ceramic patch in a 20x20x8 mm footprint, supporting concurrent L1 and L5 operation. This design is targeted at systems requiring higher positioning accuracy but unable to accommodate larger patch antennas typically used for dual-band GNSS reception.

The GVLB208 Series utilizes a single-feed stacked patch architecture, which is crucial for reducing RF layout and integration complexity, especially in compact host systems where space is limited. The passive GVLB208.A is a pin-mount antenna suitable for integration on standard PCB designs, offering optimal performance on a 70 x 70 mm ground plane. With features like RHCP polarization, L1/L5 coverage, 50 Ω impedance, and a wide operating temperature range, this antenna is versatile for various applications.

On the other hand, the active AGVLB208.A variant includes active electronics and filtering, along with a 1.13 mm micro-coaxial cable and I-PEX MHF I connector. This version is ideal for direct integration with multiband GNSS modules, providing an active antenna path without the need for additional front-end circuitry.

Supporting both L1 and L5 bands, the dual-band GNSS antenna aims to mitigate multipath interference effects and enhance reliability in challenging RF environments. With peak gain of up to 1.5 dBi, efficiency of around 50% across both bands, and an axial ratio of approximately 4 dB, these antennas are optimized for major GNSS constellations such as GPS, Galileo, GLONASS, and BeiDou.

Target applications for the GVLB208 Series include UAVs, autonomous delivery robots, telematics systems, fleet and asset tracking, precision agriculture, and industrial IoT deployments. The antennas cater to a wide range of industries seeking reliable and accurate positioning solutions in diverse operational environments.

Taoglas has made the GVLB208 Series available through the company and its authorized distributors. Looking ahead, the company plans to expand the family in the future with an active SMD variant expected to launch later in 2026. This new variant will integrate active electronic components and be specifically designed for automated high-volume manufacturing processes.