Title :
Comparison of 122 GHz LNAs in SiGe with different transmission line topologies
Author :
Mao, Yanfei ; Schmalz, K. ; Borngräber, J. ; Scheytt, J.C.
Author_Institution :
IHP GmbH, Frankfurt (Oder), Germany
Abstract :
The paper presents 122 GHz LNAs in SiGe utilizing three transmission line topologies. The amplifiers take advantage of passives like transmission lines and MIM capacitors to realize the input, output and inter-stage matching for the LNAs. Three types of transmission lines are investigated. LNA design methodology and performance comparison of LNAs with the three transmission line topologies are given. The amplifier is intended for the use in ISM band radar systems for consumer application and imaging radar for security and medical diagnostics.
Keywords :
Ge-Si alloys; MIM devices; capacitors; low noise amplifiers; millimetre wave amplifiers; ISM band radar systems; LNA design methodology; MIM capacitors; SiGe; consumer application; frequency 122 GHz; imaging radar; inter-stage matching; low noise amplifiers; medical diagnostics; transmission line topologies; Frequency measurement; Gain; Gain measurement; Power transmission lines; Silicon germanium; Topology; Transmission line measurements; 122GHz; LNA; SiGe; mm-wave circuit design; transmission line;
Conference_Titel :
Microwave Workshop Series on Millimeter Wave Integration Technologies (IMWS), 2011 IEEE MTT-S International
Conference_Location :
Sitges
Print_ISBN :
978-1-61284-963-8
DOI :
10.1109/IMWS3.2011.6061862
