Title :
A 94-GHz Monolithic Front-End for Imaging Arrays in SiGe:C Technology
Author :
Öjefors, Erik ; Pfeiffer, Ullrich
Author_Institution :
Inst. of High-Freq. & Commun. Technol., Univ. of Wuppertal, Wuppertal
Abstract :
A monolithic downconverter for 94 GHz imaging arrays implemented in SiGe:C technology is presented. The downconverter consists of a three stage differential LNA with lumped matching networks and a polyphase subharmonic mixer. It yields 20 dB conversion gain at 94 GHz with an input 1-dB compression point of -31 dB and a current consumption of 45 mA at 3.3 V supply voltage. The total required die area of the complete downconverter (excluding pad frame) is 0.1 mm2, making it particularly suitable as a front-end in multi-channel receiver systems.
Keywords :
Ge-Si alloys; carbon; low noise amplifiers; microwave imaging; microwave mixers; semiconductor materials; SiGe:C; differential LNA; frequency 94 GHz; imaging arrays; lumped matching networks; monolithic downconverter; monolithic front-end; polyphase subharmonic mixer; voltage 3.3 V; Circuit topology; Differential amplifiers; Frequency; Local oscillators; Microwave antenna arrays; Microwave imaging; Microwave technology; Monolithic integrated circuits; Phased arrays; Receiving antennas;
Conference_Titel :
Microwave Integrated Circuit Conference, 2008. EuMIC 2008. European
Conference_Location :
Amsterdam
Print_ISBN :
978-2-87487-007-1
DOI :
10.1109/EMICC.2008.4772319
