Ph.D Thesis

Ph.D StudentCohen Emanuel
SubjectMillimeter Wave Circuits and Phased Array Systems in Deep
Sub Micron CMOS Process
DepartmentDepartment of Electrical and Computer Engineering
Supervisor PROF. Dan Ritter
Full Thesis textFull thesis text - English Version


In the past decade we have witnessed an enormous evolution in the RF CMOS research driven by the growth of cellular communication market. Today, due to the availability of deep sub-micron CMOS technology and the increasing demand for high data rate communication we are the verge of another revolution where CMOS reaches the  millimeter wave band, dominated until recently by non-silicon technology and military application. By combining massive integration and sophisticated digital processing for RF assistance new applications in mm-wave are expected to emerge in few years including radar automotive, medical imaging and extremely high data rate wireless communication in the 60GHz range. These applications require integrated steerable phase array solutions with tens of antenna elements that can fit into a small platform as a mobile device.

This research tackles the new CMOS process advantages and limitations for mm-wave use and examines innovative ways we can benefit from the silicon to create a superior integrated phased array system compared to familiar one. It includes creating methodology, architecture and circuits topologies in the mm-wave frequency in order to generate the building blocks and the full array system. An integrated CMOS 60 GHz phased-array antenna module supporting symmetrical 32 transmit and receive elements with bidirectional architecture and a full built in self test capabilities was designed fabricated and tested, showing the potential of delivering 5Gb/s to a distance of few meters at 1.2Watt of power consumption, and 29mm2 in size.