Abstract
We present a 77GHz four-channel transceiver for automotive radar applications designed in a 200GHz f T 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 19dB while the NFssb is lower than 13dB at 100kHz. The VCO is based on a new topology which allows generating differential push-push outputs. It shows a tuning range larger than 8GHz. The phase noise is −74dBc/Hz at 100kHz offset. The output power is 9dBm. At a 3.3V supply, the chip consumes 533mA.
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