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Theoretical and experimental study of compensated bridges in coplanar technology: Flexibility of the compensation method
Author(s) -
Rius E.,
Coupez J. Ph.,
Toutain S.,
Person C.
Publication year - 2002
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.10191
Subject(s) - microwave , classification of discontinuities , electronic engineering , compensation (psychology) , coplanar waveguide , engineering , electric power transmission , transmission line , flexibility (engineering) , band pass filter , filter (signal processing) , electrical engineering , emphasis (telecommunications) , telecommunications , psychology , mathematical analysis , statistics , mathematics , psychoanalysis
This paper describes a systematic study of compensated bridges in coplanar technology. If bridges are necessary for filtering the parasitic coupled slot‐line mode excited by coplanar discontinuities, they modify the electrical characteristics associated with the fundamental even mode. Based on a low‐pass filter approach, a very simple technique is used to compensate for this parasitic effect. Here, emphasis is placed on the flexibility of this compensation technique, which allows us to reduce the technological constraints. Several solutions based on this approach are presented in the case of transmission lines, discontinuities such as tee junctions, and classical distributed bandpass filters. This study is valid for air bridges in classical coplanar technology, as well as for integrated dielectric bridges in multilayer coplanar technology. The concepts developed in this paper are illustrated theoretically and experimentally on multilayer devices over the 1–50 GHz frequency band. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 32: 402–408, 2002.