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We present a 77 GHz four-channel transceiver for automotive radar applications designed in a 200 GHz fT SiGe BiCMOS technology. The chip features a Tx-channel, a prescaler by 1536, and three Rx-channels. One of those Rx is in I/Q configuration. The Rx-channels show a typical conversion gain of 19 dB while the NFssb is lower than 13 dB at 100 kHz. The VCO is based on a new topology which allows generating...
We present a tunable flipflop-based frequency divider and a fully differential push-push VCO designed in a 200 GHz fT SiGe BiCMOS technology. A new technique for tuning the sensitivity of the divider in the frequency range of interest is presented. The chip works from 60 GHz up to 113 GHz. The VCO is based on a new topology which allows generating differential push-push outputs. The VCO shows a tuning...
A multi-channel RX for automotive radar applications at 76.5 GHz is presented. The chip uses a LO input signal at 38.25 GHz which is multiplied on chip. The single-ended IF outputs show a noise density of -143 dBm/Hz at 100 kHz with a typical conversion gain of 18 dB. The large signal IF channel-to-channel isolation is > 55 dB. The 14 mm2 chip consumes 520 mA from +3.3 V supply in a 200 GHz fT...
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