Infineon Technologies and InnoSenT GmbH have released a surface-mountable radar (SMR) motion detector operating in the 24 GHz ISM band. The SMR series from InnoSenT with the latest BGT24LTR11 24 GHz transceiver MMIC from Infineon inside offers a combination of high functionality, low power consumption and easy-to-install solution.

Operating in the 24 to 24.25 GHz ISM band, the transceiver features a fully integrated low phase noise voltage controlled oscillator (VCO) and built-in temperature compensation circuit for VCO stabilization. Additionally it has full ESD protection, 200 GHz bipolar SiGe: C technology and single supply voltage of 3.3 V. These features make the Infineon MMIC the ideal part at the heart of the new InnoSenT series.

The ultra-compact design of the SMR offering (20 mm x 15 mm x 3 mm) eases the integration, allowing installation even in the smallest space. Applications include security, home automation, lighting control, intelligent machine control, touch-free switches, and movement detection.

Available with different antenna patterns with the same interface, the SMR series currently comprises three types with different antenna characteristics. In addition to the option of simple motion detection with a corresponding evaluation, it is also possible to determine speed information and direction of movement to the detected object from the returned data.

The Silicon Germanium radar MMIC from was designed with Doppler-radar applications in mind, which enables additional functionalities. Beside 24 GHz the fundamental voltage controlled oscillator (VCO) it also brings variants for Frequency Modulated Continuous-Wave (FMCW) or Frequency Shift Keying (FSK) operation mode to this series.