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Variational principles are efficient CAD tools for planar tunable MICs involving lossy gyrotropic layers by I. Huynen; B. Stockbroeckx; A. Vander Vorst is a Engineering article available to read on EtoBox.
What is Variational principles are efficient CAD tools for planar tunable MICs involving lossy gyrotropic layers about?
The paper presents an e$cient design method for frequency-tunable planar devices using gyrotropic ferrite YIG "lms. The behaviour of the tunable YIG "lm is modelled by an equivalent lossy transmission line. Its parameters are the function of the permeability tensor components, which depend on the frequency and magnitude of the DC biasing magnetic "eld. We propose two analytical variational models for computing these transmission line one-or two-port parameters, depending on their coupling to the planar MIC accesses. Compared with most numerical methods, the two resulting models o!er the advantage to be fully analytical and remain valid when losses of the anisotropic material are taken into account. These two models are able to predict the expected and also the unwanted e!ects, such as non-reciprocity and losses, with a very limited numerical complexity. The e$ciency of the proposed approach is illustrated by comparing theoretical designs using these variational models with measurements carried out on the various topologies of the tunable one-and two-port planar resonators in the microstrip and slotline technology.
Who reads Variational principles are efficient CAD tools for planar tunable MICs involving lossy gyrotropic layers?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- I. Huynen; B. Stockbroeckx; A. Vander Vorst
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0894-3370)
- Published
- 1999
- Language
- EN
- Field
- Engineering (Physical Sciences)