V-band fully-integrated TX/RX single-chip 3-D MMICs using commercial GaAs pHEMT technology for high-speed wireless applications

This paper demonstrates fully-integrated V-band single-chip transmitter and receiver 3-D MMICs for high-speed wireless applications. These 3-D MMICs provide full RF functions, including an oscillator, even though they are very compact. The transmitter MMIC realizes more than 10-dBm output power at 57-60 GHz, while the receiver MMIC achieves 33-dB conversion gain and less than 6 dB noise figure at the same frequency range. The chip sizes of the transmitter and the receiver are 2.89 mm(2) and 5.04 mm(2), respectively. The V-band fully-integrated MMCs promise much cheaper millimeter-wave RF equipment due to their high-integration level, compactness, and few, inter-connections for other components.