Viallon, Christophe ; Tournier, Eric ; Graffeuil, Jacques ; Parra, Thierry
(2003)
An Original SiGe Active Differential Output Power Splitter for Millimetre-wave Applications.
In: Gallium Arsenide applications symposium. GAAS 2003, 6-10 October 2003, Munich.
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Abstract
This paper deals with an original design of an active power splitter featuring a differential output presenting a greatly enhanced even mode rejection.The proposed circuit consists in two cascaded common emitter and common collector differential pairs.For achieving the best performance,it is shown that each of these two differential pairs requires a specific common node to ground impedance that is discussed.The circuit has been implemented on a 0.25 µm SiGe BiCMOS process and exhibits anticipated phase and amplitude broadband unbalance less than 6.5 ° and 0.6 dB respectively all over the 6 -27 GHz frequency range.At 20 GHz,a common mode rejection ratio better than 43 dB is predicted,i.e.a maximum 0.12 dB /0.35 ° output signal unbalance.
Abstract
This paper deals with an original design of an active power splitter featuring a differential output presenting a greatly enhanced even mode rejection.The proposed circuit consists in two cascaded common emitter and common collector differential pairs.For achieving the best performance,it is shown that each of these two differential pairs requires a specific common node to ground impedance that is discussed.The circuit has been implemented on a 0.25 µm SiGe BiCMOS process and exhibits anticipated phase and amplitude broadband unbalance less than 6.5 ° and 0.6 dB respectively all over the 6 -27 GHz frequency range.At 20 GHz,a common mode rejection ratio better than 43 dB is predicted,i.e.a maximum 0.12 dB /0.35 ° output signal unbalance.
Document type
Conference or Workshop Item
(Paper)
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Subjects
DOI
Deposit date
17 Jun 2004
Last modified
17 Feb 2016 13:56
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Document type
Conference or Workshop Item
(Paper)
Creators
Subjects
DOI
Deposit date
17 Jun 2004
Last modified
17 Feb 2016 13:56
URI
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