作者: Olivier Tesson , Sidina Wane , Serge Bardy , Laure Rolland du Roscoat , Manohiaina Ranaivoniarivo
DOI: 10.1109/BCTM.2013.6798149
关键词: Parasitic capacitance 、 Topology (electrical circuits) 、 Cutoff frequency 、 Ka band 、 Schottky barrier 、 Schottky diode 、 Materials science 、 Voltage-controlled oscillator 、 Varicap 、 Optoelectronics
摘要: This paper presents the design and experimental characterization of High-Quality varactors Schottky Diodes in SiGe:C Technology. A new layout topology for differential varactor is proposed to significantly improve its quality factor up Ka band. addresses typical trade-off that designers often face between tuning range. 2x improvement 30 GHz over conventional made multi fingers demonstrated. On other side, special care has been taken minimize parasitic capacitance anodes keep range stable. Measured VCO with this type shows a reduction 2 dB Phase Noise at 1 MHz from carrier. Silicon-based arrays Cut-Off frequencies THz domain are designed fabricated. Concurrent optimization Diode geometry electrical performances (Cutoff frequency, parasitic, Quality-factor, Sensitivity, Responsiveness, etc.) carried out based on careful modeling characterizations. Analysis including sweep DC-biasing conditions control non-linearities studied. Detection mechanisms related non-linear behavior studied figures merit introduced their analysis.