Title :
Lange-Coupler using Microstrips on Anisotropic Substrates
Author :
Adaildo Gomes d´Assuncao;Attilio Jose Giarola
Author_Institution :
Departamento de Engenharia El?trica, Universidade Federal do Rio Grande do Norte (UFRN), 59.000 Natal, RN, Brasil.
Abstract :
An analysis of the effect of the substrate´s dielectric anisotropy on the characteristics of the Lange-coupler is reported. The geometry and phase velocities of the 3 dB and 50 ? Lange-coupler are presented for the ´Epsilam-l0´ (anisotropic substrate) and for other dielectrics with various anisotropy ratios. Results for isotropic dielectrics are also given.
Keywords :
"Anisotropic magnetoresistance","Dielectric substrates","Microstrip antenna arrays","Green´s function methods","Moment methods","Impedance","Dielectric constant","Geometry","Image analysis","Frequency"
Conference_Titel :
Microwave Conference, 1981. 11th European
DOI :
10.1109/EUMA.1981.333056
