Development of 60-GHz Front -End Circuits for a High-Data-Rate Communication System.
Journal article, 2004

Recent results from a Swedish program for development of 60-GHz monolithic microwave integrated circuits (MMICs) for high-data-rate communication links are presented. Front-end circuits such as mixers, amplifiers, frequency multipliers, IF amplifiers with gain control, and voltage-controlled oscillators (VCOs) have been realized utilizing GaAs PHEMT and MHEMT technologies. A newly developed 7.5-GHz coupled Colpitt VCO shows a minimum phase noise of -95 dBc at 100 kHz offset. A second-harmonic 14-GHz VCO shows a minimum phase noise of less than -90 dBc at 100 kHz. A novel balanced 7-28-GHz MMIC frequency quadrupler is described and compared with a single-ended quadrupler at the same input frequencies. To demonstrate its feasibility and potential application, the quadrupler is combined with the Colpitt VCO and the output characteristics of the resulting 30-GHz MMIC source are measured. A three-stage MHEMT wide-band amplifier covering 43-64 GHz with a gain of 24 dB, a minimum noise figure of 2.5 dB, and a passband ripple of 2 dB is also described. In future 60-GHz systems for mass markets where cost is of utmost importance, Si-based technologies, especially CMOS, are highly interesting. Some recent circuit results based on a 90-nm CMOS technology are also reported.

voltage-controlled oscillator(VCO)

60-GHz communication



Herbert Zirath

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

Toru Masuda

Hitachi, Ltd.

Rumen Kozhuharov

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

Mattias Ferndahl

Chalmers, Microtechnology and Nanoscience (MC2), Solid State Electronics

IEEE Journal of Solid-State Circuits

0018-9200 (ISSN)

Vol. 39 10 1640-1649

Subject Categories

Other Electrical Engineering, Electronic Engineering, Information Engineering



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