Multi-band GNSS front-end modules simplify design
Building upon the existing product range, Taoglas® is expanding its TFM series of multi-band GNSS front-end modules to offer design engineers more options for simplifying and accelerating product development for high-precision GNSS applications.
The TFM GNSS front-end modules feature a two-stage cascaded filter and low noise amplifier (LNA) topology to streamline integration with any multi-band antenna or GNSS receiver, acting as a bridge between the antenna and RF module to facilitate the addition of active electronics to GNSS designs. The modules come in an encapsulated shielded, robust, compact, low-profile surface mount package.
“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.
Dermot O’Shea explains that the modules not only speed up time to market but also enable engineers to focus on the rest of their design. Further, Taoglas has many years of experience designing such circuits for its own antennas, ensuring designers get a best-in-class product with confidence in the reliability and accuracy of the GNSS data.
To simplify integration, the TFM modules combine 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 throughout the entire signal chain. Furthermore, high-gain architecture, featuring cascaded LNAs with pre-filters and optimised impedance matching, provides at least 25 dB gain to the GNSS receiver.
The 1 dB compression points of the modules are -31 dBm or better, depending on the model and frequency. All TFM modules operate from a DC input voltage of 1.8 to 5.5 VDC, offering maximum design flexibility. A compact, low-profile, shielded, surface-mount package measuring 15- x 15- x 2.7-mm saves space and doesn’t require external components.
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