Title :
Inverse scattering of nonuniform, symmetrical coupled lines
Author :
Cheng, Tun-Ruey ; Pan, Te-Wen ; Hsue, Ching-Wen
Author_Institution :
Dept. of Electron. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei, Taiwan
fDate :
7/1/1998 12:00:00 AM
Abstract :
A novel technique is developed to reconstruct the physical layouts of nonuniform symmetric couplers from the scattering parameters at terminals. The coupler is decomposed into even- and odd-mode lines in which the decoupled modal lines are reconstructed from their respective scattering parameters. The effect of unequal modal propagation delays on the reconstructed coupler is also addressed. Numerical results are presented to illustrate the validity of this reconstruction technique
Keywords :
S-parameters; electromagnetic wave scattering; inverse problems; waveguide couplers; decoupled modal lines; even-mode lines; inverse scattering; nonuniform symmetrical coupled lines; odd-mode lines; physical layout reconstruction; scattering parameters; symmetric couplers; unequal modal propagation delays; Couplers; Coupling circuits; Distributed parameter circuits; Impedance; Inverse problems; Matched filters; Propagation delay; Reflection; Scattering parameters; Transmission line theory;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
