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Mini GNSS Receiver FEMs Raise The Noise-Figure Bar

Neubiberg, Germany: A new series of receiver front-end modules (FEMs) for implementing Global Navigation Satellite Systems (GNSS) in smartphones and handhelds offer unparalleled noise figures, according to developer Infineon. They also come in a package measuring a mere 2.3 by 1.7 by 0.73mm.

NewsLine-April-2012-News-Infineon-AThe series consists of two models, both of which support simultaneous reception of GPS (Global Positioning System) and GLONASS (Globalnaya Navigatsionnaya Sputnikovaya Sistema) signals. The BGM1043N7 is a standard solution with 14.8dB gain and 1.5dB noise figure. The high-gain (17.0 dB) BGM1044N7 offers a 1.55dB noise figure for systems with high losses in the receive chain. This can include personal navigation devices and digital cameras, where the potential for jamming due to high-power cellular signals is less critical.

Pre-filter and low-noise-amplifier (LNA) stages of the GNSS signal-chain front-end are combined to achieve a balance of performance improvements and space savings. Other features include high linearity to avoid interference of more powerful cellular signals, single-module coverage of the frequency range from 1575 to 1605MHz, and optimised gain for sensitivity.

The modules are a pin-to-pin-compatible upgrade with the previous-generation BGM103xN7.

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