Title: Broadband SiGe HBT Gilbert downconverter with 1.8 to 36 GHz integrated dual Marchand balun
Authors: Syu, J. -S.
Meng, C.
Yu, S. -W.
電信工程研究所
Institute of Communications Engineering
Issue Date: 3-Jul-2008
Abstract: A broadband Gilbert downconverter with an integrated dual Marchand balun (balanced to unbalanced transformer) is demonstrated by using 0.35 mu m SiGe heterojunction bipolar transistor (HBT) technology. A dual Marchand balun consisting of a lower band balun and an upper band balun is employed in the LO stage of the downconverter to maintain balanced LO signals from 1.8 to 36 GHz. The broadband downconverter has peak conversion gain of 3 dB at RF = 3 GHz and 3 dB bandwidth of 1.8 to 20 GHz at 3.3 V DC supply.
URI: http://dx.doi.org/10.1049/el:20080897
http://hdl.handle.net/11536/8585
ISSN: 0013-5194
DOI: 10.1049/el:20080897
Journal: ELECTRONICS LETTERS
Volume: 44
Issue: 14
Begin Page: 861
End Page: U187
Appears in Collections:期刊論文


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