Abstract
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. 0.13μm SiGe BiCMOS technology having 250/340 GHz of fr/fmax is utilized to fabricate this fully integrated chip with a die area of 1.65 × 1.05 mm2. The chip is composed of two receiver channels including I/Q based downconverter with a conversion gain and input referred 1dB 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 70m are detectable.
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