~ Abstmcf -This paper describes the successful development of 38/77 GHz transmit MMICs for automotive applicatious. They consist of a 38 GHz amplifier, a frequency doubler, and a 77 GHz power amplifier. These amplifiers achieve output powers of 16 dBm at 38 GHz and 15 dBm at 76.5 GHz at 1 dB gain compression point The output power of the 77 GHz amplifier is one of the highest delivered by a single chip MMlC at 76.5 GHz. The frequency doubler delivers an output power of 5.7 dBm at 76.5 GHz. These results are promising for automotive applications in the W-band.
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