Multi-band GNSS FEM series expanded to accelerate high-precision applications development

Taoglas has expanded its TFM series of multi-band GNSS front-end modules (FEM). Building upon the current product range, the expanded series provides design engineers with more options for simplifying and accelerating product development for high-precision GNSS applications.

TFM modules comprise a two-stage cascaded filter and LNA topology encapsulated within a shielded, robust, compact, low-profile surface mount package. This design provides streamlined integration with any multi-band antenna or GNSS receiver, acting as a bridge between the antenna and RF module to enable the addition of active electronics to GNSS designs.

The series simplifies integration by combining impedance matching, filters, and LNAs into a single package. The integrated pre-filters attenuate out-of-band signals, while the LNAs ensure an optimal noise figure across the entire signal chain. Furthermore, high-gain architecture, featuring cascaded LNAs with pre-filters and optimised impedance matching, provides at least 25dB gain to the GNSS receiver. The 1dB compression points of the modules are -31dBm or better, depending on the model and frequency. All TFM modules operate from a DC input voltage of 1.8VDC to 5.5VDC, providing maximum design flexibility. The compact footprint and low-profile design, housed in a shielded, surface mount package measuring 15mm x 15mm x 2.7mm, conserves space without needing external components.

"Using TFM modules typically saves designers at least six months of development time compared to designing active circuitry on the PCB themselves," said Taoglas CEO, Dermot O'Shea. "It not only speeds things up and enables them to focus on the rest of their design, but because of our many years of experience designing such circuits for our own antennas, you know you are getting best in class and can be confident in the reliability and accuracy of your GNSS data."

The modules are designed for high-precision, multi-band GNSS applications, including navigation, transportation, robotics, precision agriculture, and autonomous vehicles.

Evaluation boards for the TFM series are available, enabling engineers to quickly integrate and test these high-performing GNSS modules in their product designs.