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Fully Integrated SiGe-BiCMOS Receiver(RX) and Transmitter(TX) Chips for 76.5 GHz FMCW Automotive Radar Systems Including Demonstrator Board Design

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18 Author(s)
Reuter, R. ; Freescale GmbH, Munich ; Li, H. ; To, I. ; Yin, Y.
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Advancements in SiGe device development enable the realization of 76.5 GHz FMCW automotive long range radar systems using relatively low-cost silicon technology. This paper presents fully integrated receiver (RX) and transmitter (TX) circuits for wide temperature range operations. The TX chips consists of a VCO with two stage power amplifier, frequency divider chain, power detector circuit and operational amplifier to on-chip compensate the temperature drift of the center frequency. The RX chips is based on a 38.25 GHz doubler, a 76.5 GHz LNA, a passive balun, a fully balanced mixer and IF buffer. Also the integration and combination with planar patched antennas on a demonstrator board was discussed.

Published in:

Microwave Symposium, 2007. IEEE/MTT-S International

Date of Conference:

3-8 June 2007