Design and Analysis of 4-GHz SOP FMCW HMIC Radar

The demand for higher performance systems that are smaller and have the potential to be more cost effective has lead hardware designers to adopt integration of many components and modules in a package (SOP) or on a chip (SOC). A compact SOP (single-substrate) L-band FMCW HMIC radar module for high-resolution sensor application has been demonstrated. For use with a single transmitreceive antenna, a miniature microstrip hexaferrite circulator has been integrated to the transceiver module. The module was based on a transceiver HMIC with an integrated branch divider and 5-port ring coupler to enable both broadband modulation and single-antenna operation. The integrated substrate size could be reduced to 40 cm. The analysis of the designed radar is introduced which reflects a good performance and achieves a higher efficiency.