Title :
A 90GHz pulsed-transmitter with near-field/far-field energy cancellation using a dual-loop antenna
Author :
Arbabian, Amin ; Kang, Shinwon ; Callender, Steven ; Afshar, Bagher ; Chien, Jun-Chau ; Niknejad, Ali
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., UC Berkeley, Berkeley, CA, USA
Abstract :
A reflective, dual-loop, switching antenna utilizing near-field/far-field energy cancellation is integrated in a 90 GHz pulsed transmitter (TX). The TX features high ON/OFF ratio, good antenna efficiency and PRF up to 3.45 GHz. It achieves TX power of 10 dBm with 18 dB of power tuning. The pulse width is tunable between 46 ps to 310 ps and initial bistatic measurements distinguish 4 reflectors across a 6 cm region signifying progress towards the development of a diagnostic medical imager in silicon.
Keywords :
loop antennas; millimetre wave antennas; radar antennas; radar transmitters; transmitting antennas; diagnostic medical imager; dual-loop antenna; frequency 90 GHz; near-field/far-field energy cancellation; power tuning; pulse width; pulsed-transmitter; reflective switching antenna; time 46 ps to 310 ps; Antenna measurements; Pulse measurements; Semiconductor device measurement; Switches; Transmitting antennas; Antentronics; BiCMOS integrated circuits; Loop antenna; Millimeter wave circuits; Millimeter wave radar; Onchip antenna; Power amplifier; Transmitter; Wideband circuits;
Conference_Titel :
Radio Frequency Integrated Circuits Symposium (RFIC), 2011 IEEE
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4244-8293-1
Electronic_ISBN :
1529-2517
DOI :
10.1109/RFIC.2011.5940672
