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Lossy microwave filter synthesis technique

Lossy microwave filter synthesis technique

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An easy and straightforward technique for the synthesis of lossy coupled-resonator filters is presented. A lossy filter designed by attachment of attenuators is transformed into a realisable lossy filter through linear operations of its admittance matrix and optimisations. This technique can synthesise lossy symmetric filters, asymmetric filters and different loss level filters.


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      • Guyette, A.C., Hunter, I.C., Pollard, R.D.: `Exact synthesis of microwave filters with nonuniform dissipation', Proc. IEEE MTT-S Int. Microw. Symp., June 2007, Honolulu, HI, USA, p. 537–540.
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      • Mateu, J., Padilla, A., Collado, C., Martinez-Mendoza, M., Rocas, E., Ernst, C., O'Callaghan, J.: `Synthesis of 4th order lossy filters with uniform Q distribution', IEEE MTT-S Int. Microw. Symp. Dig., May 2010, Anaheim, CA, USA, p. 568–571.
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