Title :
Q-band down-converting module for Multi Pixel Camera receivers
Author :
Jankowski, Maciej ; Limiti, Ernesto ; Palombini, Diego
Author_Institution :
EE Dept., Univ. of Roma Tor Vergata, Rome, Italy
Abstract :
Multi-Pixel Cameras represent an emerging architecture for arrays receivers, improving speed and accuracy of radio-astronomical sky surveys by means of a matrix of phased elements. This work faces the requirement of delivering to each pixel a high frequency LO signal (32GHz) without loss of synchronism: a new system architecture made up of an amplifying-multiplying chain and an amplifying-mixing section both integrated in the same 3×2mm2 chip is presented. The Q-band down-converting module, pumped by 4GHz local oscillator, operates in the whole 33-50GHz range with a really ultra-broadband IF section (1-18GHz).
Keywords :
oscillators; radioastronomical techniques; radioastronomy; submillimetre wave receivers; wideband amplifiers; Q-band down-converting module; amplifying-mixing section; amplifying-multiplying chain; arrays receivers; emerging architecture; frequency 1 GHz to 18 GHz; frequency 32 GHz; frequency 33 GHz to 50 GHz; high frequency LO signal; local oscillator; multipixel camera receivers; phased elements; radio-astronomical sky surveys; synchronism; system architecture; ultrabroadband IF section; Impedance matching; Microwave circuits; Microwave communication; Mixers; Radio frequency; MMIC mixers; analog multipliers; broadband amplifiers; radio astronomy;
Conference_Titel :
Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMIC), 2011 Workshop on
Conference_Location :
Vienna
Print_ISBN :
978-1-4577-0650-9
DOI :
10.1109/INMMIC.2011.5773322
