Title :
Broad-band frequency characterization of double Y-branch nanojunction operating as room-temperature RF to DC rectifier
Author :
Bednarz, Lukasz ; Rashmi ; Hackens, Benoît ; Farhi, Ghania ; Bayot, Vincent ; Huynen, Isabelle
Author_Institution :
Cermin, Univ. Catholique de Louvain, Louvain-la-Neuve, Belgium
Abstract :
Room-temperature dc and broad-band high-frequency (HF) to dc conversion measurements of a double Y-branch junction (YBJ) are presented and discussed. Nonlinear dc characteristics of the devices at room temperature are observed and HF to dc conversion up to 40 GHz at room temperature is presented. The HF to dc conversion efficiency degradation is found to be partly due to losses in interconnects feeding the device. A small-signal equivalent circuit of the YBJ is proposed in order to verify the frequency dependence of intrinsic elements.
Keywords :
ballistic transport; high-frequency effects; nanotechnology; semiconductor devices; semiconductor junctions; solid-state rectifiers; two-dimensional electron gas; 293 to 298 K; 2D electron gas; 40 GHz; broad-band high-frequency characterization; double Y-branch nanojunction; high frequency-dc conversion efficiency degradation; intrinsic elements; nanotechnology; nonlinear dc characteristics; room-temperature RF-DC rectifier; small-signal equivalent circuit; Electrons; Frequency dependence; HEMTs; Hafnium; Nanotechnology; Radio frequency; Rectifiers; Temperature; Voltage; Waveguide junctions; High-frequency (HF) measurements; Y-branch junction (YBJ); nanotechnology; nonlinear; room temperature; two-dimensional electron gas (2DEG);
Journal_Title :
Nanotechnology, IEEE Transactions on
DOI :
10.1109/TNANO.2005.851413
