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Design and development of a 14.25 GHz to 57 GHz frequency quadrupler has been presented in this paper using GaAs/InGaAs/AlGaAs based pseudomorphic High Electron Mobility Transistor (pHEMT) in a single-stage, Monolithic Microwave Integrated Circuit (MMIC). Fabricated MMIC chip has achieved 5.2 dB of conversion loss at 57 GHz for 0 dBm of input power at 14.25 GHz. Saturated output power is −4.5 dBm...
This paper presents a harmonics current-less AC-DC power conversion system with the integration of a series active compensator to a large-rated double series diode rectifier. The series active compensator and the diode rectifier are directly connected in parallel thus shares a common dc bus. Due to this compensator, the diode rectifier draws three-phase sinusoidal currents from AC mains. In addition,...
A 11.75 GHz to 47.0 GHz frequency quadrupler has been developed employing two diode based planar microstrip doublers and two commercially available MMIC amplifiers in a cascaded hybrid Microwave Integrated Circuit(MIC) configuration. More than 14 dBm of output power over 8.5% frequency bandwidth has been obtained with 13 dBm of input power. Spurious and harmonic suppression in excess of 80 dBc has...
A single-phase series active compensator is proposed to mitigate voltage sag, swell and voltage harmonics along with reducing harmonic currents at the AC mains. The DC link capacitor of the series active compensator is shared with a voltage fed load thus having a common DC link. The common DC link has an advantage of reduced component and immune to the wide variation in the voltage of AC mains, thus...
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