Single chip K alpha -band transceiver

The first monolithic single chip FM-CW radar transceiver operating at 40 GHz is presented. The chip is the largest multifunction MMIC (microwave monolithic integrated circuit) demonstrated operating at millimeter-wave frequencies. The design implements transmitter, receiver, and duplexer functions using a single process InGaAs HEMT (high electron mobility transistor) technology. The transmitter operates in the frequency range from 30 to 40 GHz and has greater than 12.0 dBm output power. The receiver converts the signals in the same frequency range to an intermediate frequency of 10 to 100 MHz with 0 dB conversion loss. When integrated with an antenna, the chip is a fully functional FM-CW radar which detects the Doppler frequency shift from reflected objects.<>