A CMOS Pulse Beamforming Transmitter Design with an On-Chip Antenna Array for Millimeter Wave Imaging Applications

This paper presents an on-chip folded dipole antenna array with 100-120-GHz pulse transmitter for imaging applications in the millimeter wave (mm-wave) regime. The damping pulse generator is implemented using an on-chip transformer, a capacitor, and an NMOS transistor operated with 100-MHz clock to produce mm-wave pulses which are fed into on-chip antennas. Also, a new CMOS programmable delay circuit controller is developed for pulse beamformability. This array antenna transmitter has been designed and fabricated as a 4.2-mm×4.2-mm chip in 65-nm CMOS technology with 100 on-chip antennas and also 100 corresponding integrated pulse generating circuits.