A GaAs MMIC Chip-Set for 10 to 15GHz Radio-Links Applications

This paper describes the development of a GaAs MMIC chip-set for Ku-band radio-links transmitter. This chip-set includes two circuits, a times-two multiplier 5-7.5GHz to 10-15GHz, and a single side band up-converter. The development and the results of these circuits are analysed. The times-two multiplier is based on a specific balanced configuration leading to a very high level of input frequency suppression at the output (typically 50dBc) on a 2.7mm2 chip. The mixer circuit is a broadband build-in single side band mixer of 10mm2, with typically 30dBc image suppression.