A CMOS fully integrated antenna system transceiver with beam-formability for millimeter-wave active imaging

• Published in: 2013 IEEE 13th Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems pp. 123 - 125
• Main Authors: Khanh, Nguyen Ngoc Mai, Asada, Kunihiro
• Format: Conference Proceeding Journal Article
• Language: English
• Published: IEEE 01.01.2013
• Subjects: active imaging; Antennas; Arrays; Calibration; CMOS; Delay; Delays; Imaging; integrated antenna array; Low pass filters; mm-wave; on-chip calibration; System-on-chip; transceiver; Transceivers
• ISBN: 1467315524; 9781467315524
• DOI: 10.1109/SiRF.2013.6489453

This paper presents the performance of a 65-nm CMOS antenna system transceiver with digital beam-formability for mm-wave active imaging. The 8-antenna array transmitter (Tx) has an ability of on-chip pulse delay calibration as our previous work. We developed the receiver (Rx) chip by employing FET direct power detection circuit including an on-chip antenna, low-pass filter and a 3-stage amplifier. Pulse delay calibration of the Tx is digitally implemented. Measured Rx's output waveform after relatively aligning all Tx's pulses is 0.91 mV and 3-ns duration with a 25-mm distance between Rx and Tx. Other Rx's outputs are also measured by applying other differential delay codes of Tx and another distance to prove the system's beam-formability. Experiment results show that the transceiver can not only implement on-chip digitally transmitted-pulse calibration but also detect beam-formed pulse for active imaging in medical diagnosis applications.