A four-stage monolithic microwave integrated circuits (MMIC) low noise amplifier (LNA) operating from 23 to 36GHz is reported using commercially available 0.15μm PHEMT technology. The LNA is self-biased. To achie...
GaAs PIN diodes optimized for X-band low loss and high isolation switch application are presented. The impact of diode physical characteristics and electrical parameters on switch performance is discussed. A new struc...
A novel equivalent circuit model for a GaAs PIN diode is presented based on physical analysis. The diode is divided into three parts: the p^+ n^- junction, the i-layer, and the n^- n^+ junction, which are modeled s...
By epitaxial layer structure design and key fabrication process optimization,a lattice-matched InP-based In0.53Ga0.47 As-In0.52Al0.48As HEMT with an ultra high maximum oscillation frequency (fmax) of 183GHz was fab-...
Lattice-matched In0.5 Ga0.47 As/In0.52 Al 0.48 As high electron mobility transistors (HEMTs) with a cutoff frequency (ft) as high as 218GHz are reported. This fT is the highest value ever reported for HEMTs in Chi...
A new method is used to simulate InGaAs/InP composite channel high electron mobility transistors (HEMTs). By coupling the hydrodynamic model and the density gradient model, the electron density distribution in the c...