Title :
Simulation of HF circuits with FDTD technique including non-ideal lumped elements
Author :
Ciampolini, P. ; Mezzanotte, P. ; Roselli, Luca ; Sereni, D. ; Sorrentino, Roberto ; Torti, P.
Author_Institution :
Istituto di Elettronica, Perugia Univ., Italy
Abstract :
An extension of the FDTD algorithm is devised, accounting for high-frequency models of lumped elements. Bipolar transistors, junction and Schottky diodes are considered, as well as their associated nonlinear capacitances. Several validation examples are given. In particular, a simple, yet complete, structure has been simulated, consisting of an L-band unbalanced mixer and including a microstrip stub, a microstrip to microstrip tee junction, a microstrip gap and a shielding package. Results favourably compare with alternative simulation techniques.<>
Keywords :
UHF circuits; VHF circuits; capacitance; circuit analysis computing; finite difference time-domain analysis; lumped parameter networks; microwave circuits; FDTD algorithm; HF circuit simulation; L-band unbalanced mixer; Schottky diodes; bipolar transistors; high-frequency models; junction diodes; microstrip gap; microstrip stub; microstrip to microstrip tee junction; nonideal lumped elements; nonlinear capacitances; shielding package; Bipolar transistors; Capacitance; Circuit simulation; Finite difference methods; Hafnium; L-band; Microstrip components; Packaging; Schottky diodes; Time domain analysis;
Conference_Titel :
Microwave Symposium Digest, 1995., IEEE MTT-S International
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-2581-8
DOI :
10.1109/MWSYM.1995.405969
