Title :
Mathematical model of microwave high-power microstrip loads
Author :
Rubanovitch, M.G. ; Razinkin, V.P. ; Khrustalev, V.A. ; Matvejev, S.J.
Author_Institution :
Novosibirsk State Tech. Univ., Russia
Abstract :
Mathematical model of microstrip transmission line with losses used as a final load or a high-power attenuator is developed. The model is based on the decomposition impedance approach. The equivalent circuit, which represents impedance analog of the load, is obtained by partitioning the resistance stratum surface on a two-dimensional grid from elementary blocks. The division of the blocks in the cross-section involves current heterogeneity of the microstrip transmission line. The connection between elementary blocks in the cross-section is described by means of cross-inductive method. It ensures galvanic outcome of resistors which are used to describe dispersion of microwave power, and allows one to define precisely an input impedance on zero frequency. The developed model can be used on frequencies from 0 up to 20 GHz for high-power loads having significant longitudinal and transversal sizes
Keywords :
equivalent circuits; losses; microstrip lines; waveguide attenuators; waveguide theory; 0 to 20 GHz; current heterogeneity; decomposition impedance approach; equivalent circuit; high-power attenuator; impedance analog; input impedance; longitudinal sizes; losses; microstrip transmission line; microwave high-power microstrip loads; transversal sizes; two-dimensional grid; Attenuators; Distributed parameter circuits; Equivalent circuits; Frequency; Mathematical model; Microstrip; Power transmission lines; Propagation losses; Surface impedance; Surface resistance;
Conference_Titel :
Microwave Electronics: Measurements, Identification, Application Conference, 2001. MEMIA 2001
Conference_Location :
Novosibirsk
Print_ISBN :
0-7803-6743-X
DOI :
10.1109/MEMIA.2001.982357
