Loss minimisation in λ/4 impedance transformers using multiple λ/4 segments | Zendy

Li C. | Zendy; Ricketts D.S. | Zendy

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Loss minimisation in λ/4 impedance transformers using multiple λ/4 segments

Author(s) -

Li C.,

Ricketts D.S.

Publication year - 2013

Publication title -

electronics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.375

H-Index - 146

ISSN - 1350-911X

DOI - 10.1049/el.2012.3382

Subject(s) - minimisation (clinical trials) , electrical impedance , transformer , computer science , electronic engineering , mathematics , engineering , electrical engineering , voltage , statistics

Presented is an analysis of loss in quarter‐wavelength impedance transformers. It is shown that the loss of an impedance transformer, S 21 , is a function not only of the dielectric and conductor loss, but also the transformation ratio. S 21 is derived as a function of both loss and transformation ratio and it is shown that for high transformation ratios, using two or even three quarter‐wavelength impedance transformers results in an overall lower loss.

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