Fabrication of up-converter MMICs' and their modules for the application of 60 GHz mobile broadband system

This paper presents the experimental results of a line of work from MMIC design. fabrication, module packaging, and measurement, to system demonstration for the next generation 60 GHz, wideband wireless communications systems. We fabricated power amplifier (PA) and up-mixer monolithic microwave integrated circuits (MMICs') and their modules for the Application of W GHz mobile broadband system (MBS) transmitter, The device technologies For the transinitter MMICs' are ETRI's own 0.15 mum gate-length GaAs pseudomorphic high electron mobility transistor (PHEMT) for PA MMIC and 0.2 mum gate-length metamorphic HEMT (MHEMT) for up-mixer MMIC. The output power at 1-dB gain compression point. P1dB, of the 4-stage PA is higher than 16 dBm and the gain higher than 12.4 dB for 58 similar to 62 GHz. For 60 GHz up-mixer the conversion gain is higher than -12 dB and the output P1dB is higher than -12.85 dBm for 57 similar to 70 GHz. The modules of PA (40 x 30 x 15 mm(3)) and up-mixer (16 x 30 x 15 mm(3)) were made for the The modules of PA (40 x 30 x 15mm(3)) transmission test on the 60 GHz MBS test system and the 60 GHz wireless transmission test was successfully demonstrated.