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LNA

 Multiband LNA Modules for Mobile Devices

LNA Applications

In mobile devices high system sensitivity enhances the end customers’ usage experience by maximizing data rate and ensuring good reception quality even far away from the base station. The best way to improve the system sensitivity is to add an LNA in the receive path. An LNA can suppress the noise contribution coming from the analog RF front-end, the transceiver and mitigate line loss. Therefore, the system sensitivity can be improved by several dB.
We offer a broad product portfolio of MMIC LNAs for 2G/3G/3.5G/4G/4.5G applications (e.g. GSM/EDGE, CDMA, UMTS, HSPA, LTE, LTE-Advanced). Our LNA portfolio covers all commonly used band(s) or band combinations with 1-band, 2-band, 3-band, 4-band LNA(s) in the frequency range from 700MHz up to 2800MHz. These MMIC LNAs boast the following salient features:

  • LNA circuit with 2 or 3 digitally switchable gain levels enabling operation with either good noise performance or under high jammer/interference environment
  • Input and output are either matched or pre-matched
  • Built-in temperature and supply voltage stabilization and fully ESD protected circuit design ensures stable operation

Blockdiagram Antenna Switch

Low Noise Amplifiers for Navigation Applications

GPS/GLONASS/COMPASS (GNSS = Global Navigation Satellite System) navigation devices, be it Personal Navigational Devices (PND) or Mobile Phones or Watch or Cameras, require a Low Noise Amplifier to enhance receiver sensitivity. Most of the smartphones today feature navigation applications, which impose greater demands on linearity, size and power consumption compared to stand alone navigation devices. Our GNSS LNAs developed in Infineon’s advanced SiGe processes offer:

  • best-in-class noise figure
  • best-in-class linearity
  • best-in-class form factor

Blockdiagram Navigation