Title :
Characterisation of Schottky Diode Performance by Numerical Simulation Coupled with Harmonic Balance
Author :
Grajal, J. ; Krozer, V. ; González, E. ; Gismero, J. ; Maldonado, F. ; Lin, C. ; Simon, A. ; Hartnagel, H.L.
Author_Institution :
U.P. Madrid, ETSIT, Ciudad Universitaria s/n, 28040 Madrid, Spain. Phone: 34-1-3367358, fax: 34-1- 3367362, e-mail: jesus@gmr.ssr.upm.es
Abstract :
The electrical and RF performance characteristics of submillimetre-wave Schottky diodes are investigated using an accurate physical model which combines drift-diffusion current transport with thermionic and thermionicfield emission currents imposed at the Schottky contact. The model includes self-consistently image force effect, tunneling transport, and current dependent recombination velocity at the Schottky contact. This physical simulator has been coupled to a harmonic balance simulator as a non-linear element. The integrated device-circuit simulator has allowed to study in detail the limiting factors of varactor operation. The contribution of large-signal capacitance excitation is discussed. The influence of external loads at different harmonics, bias and power level is also analysed.
Keywords :
Capacitance; Harmonic analysis; Numerical simulation; Power system harmonics; Radio frequency; Schottky barriers; Schottky diodes; Thermionic emission; Tunneling; Varactors;
Conference_Titel :
Microwave Conference, 1997. 27th European
Conference_Location :
Jerusalem, Israel
DOI :
10.1109/EUMA.1997.337795
