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 3D MMICs for high-speed wireless applications. These 3D 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/sup 2/ and 5.04 mm/sup 2/, respectively. The V-band fully-integrated MMICs promise much cheaper millimeter-wave RF equipment due to their high-integration level, compactness, and few interconnections for other components.