A 60 GHz SiGe BiCMOS double receive channel transceiver for radar applications

In this paper, a 60 GHz double receive channel FMCW transceiver measurement results together with the design procedure and simulations are presented, considering the license free ISM band. 0.13 μm SiGe BiCMOS technology having 250/340 GHz of f
_T
/f
_max
is utilized to fabricate this fully integrated chip with a die area of 1.65 × 1.05 mm
²
. The chip is composed of two receiver channels including I/Q based downconverter with a conversion gain and input referred 1 dB compression point of 23 dB and -26 dBm respectively at 60 GHz and a transmitter block of over 10 dBm output power combined with a 3-way power divider for the LO signal generated by a 3-bit push-push VCO and a divide-by-32 frequency divider. The total current consumption of this block is 230 mA at 3.3 V of single supply. With the help of three 4-patch on-board antennas designed on a standard high frequency material and I/Q signal processing baseband boards, successful outdoor FMCW system measurements with the proposed transceiver are achieved where obstacles above 70 m are detectable.