$\mu {\mathrm{ m}}$ GaAs pHEMT process, and the size of the hybrid part is

$1.2\times 1.4$

mm². Within the frequency range of 3.8~8.5 GHz (75% fractional bandwidth), the amplitude and phase imbalance are less than 0.5 dB and 2.6°. All reflections and isolations are better than 16.4 dB. The measured results verify the design theory and illustrate that the lumped-element quadrature hybrid is suitable for compact broadband circuit applications.">

A Novel Broadband Microwave Lumped-Element Quadrature Hybrid MMIC (original) (raw)

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